Utilizing Particular Refrigerant And/or Sorbent Materials Patents (Class 62/112)
  • Patent number: 10995250
    Abstract: A thermal storage composition is defined by a polymer having thermally responsive absorption or passage capabilities based on an Upper Critical Solution Temperature (UCST) or Lower Critical Solution Temperature (LCST), and a sorbent in fluidic communication with the polymer. A fluid such as water conveys thermal energy between the polymer and the sorbent based on an identified target temperature that acts as a thermostat for synergistic fluid release and transfer between the polymer and sorbent that stores and releases heat energy in a cyclic manner. The composition includes a synergistic integration of a sorbent and selectively hydrophilic polymer to alternately hydrate according to a target temperature based on the UCST of the water/sorbent combination.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: May 4, 2021
    Assignee: Worcester Polytechnic Institute
    Inventors: Steven Van Dessel, Mingjiang Tao, Sergio Granados-Focil
  • Patent number: 10829674
    Abstract: To provide a working medium for heat cycle, of which combustibility is suppressed, which has less influence over the ozone layer, which has less influence over global warming and which provides a heat cycle system excellent in the cycle performance (efficiency and capacity), and a heat cycle system, of which the safety is secured, and which is excellent in the cycle performance (efficiency and capacity). A working medium for heat cycle comprising 1-chloro-2,3,3,3-tetrafluoropropene is employed for a heat cycle system (such as a Rankine cycle system, a heat pump cycle system, a refrigerating cycle system 10 or a heat transport system).
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 10, 2020
    Assignee: AGC Inc.
    Inventor: Masato Fukushima
  • Patent number: 10493441
    Abstract: Compositions and methods for selective olefin (e.g., ethylene) oligomerization comprising metal organic frameworks (MOFs) are generally provided In some embodiments, a MOF comprises a plurality of metal ions, each coordinated with at least one ligand comprising at least two unsaturated N-heterocyclic aromatic groups arranged about an organic core.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: December 3, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Mircea Dinca, Eric D. Metzger, Carl K. Brozek
  • Patent number: 10480801
    Abstract: Embodiments of the present disclosure provide a system and method for providing conditioned air to at least one enclosed structure. The system may include at least one conditioning module configured to provide conditioned air to the at least one enclosed structure. The conditioning module(s) may include a conditioning energy exchanger. The conditioning module(s) is configured to circulate desiccant through a desiccant circuit to condition air passing through the conditioning energy exchanger. The conditioning module(s) may be configured to receive at least one of concentrated desiccant or diluted desiccant in order to vary temperature or concentration of the desiccant circulating through the desiccant circuit.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: November 19, 2019
    Assignee: Nortek Air Solutions Canada, Inc.
    Inventors: Manfred Gerber, Philip Paul LePoudre, Maury Brad Wawryk
  • Patent number: 9845974
    Abstract: A particle comprises an inner part and an outer coating. The inner part comprises CaO and the outer coating comprises hydrophobic nanoparticles of a size less than 1 ?m. The particle has an average size of from 1 to 1000 ?m. A device adapted to perform an absorption process comprises at least one such particle. A method for manufacturing such a particle comprises mixing CaO with hydrophobic nanoparticles, and mixing with sufficient energy to obtain particles comprising CaO coated with the hydrophobic nanoparticles.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: December 19, 2017
    Assignee: CLIMATEWELL AB
    Inventors: Göran Bolin, Dmitri Glebov
  • Patent number: 9803899
    Abstract: A condenser includes a condensation zone for condensing vapor to be condensed in an operating liquid, the condensation zone being formed as a volume zone including a top end, a bottom end and a lateral boundary between the top end and the bottom end, and a vapor introduction zone extending along the lateral end of the condensation zone and being configured to feed vapor to be condensed into the condensation zone laterally via the lateral boundary.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: October 31, 2017
    Assignee: Efficient Energy GmbH
    Inventors: Holger Sedlak, Oliver Kniffler
  • Patent number: 9752804
    Abstract: The invention relates to a method and a device for operating a cyclical thermal adsorption heating or refrigeration system having a desorption phase and an adsorption phase, comprising at least one adsorber/desorber unit (A/D), a refrigerant cyclically adsorbed during the adsorption phase and desorbed during the desorption phase, and an evaporator/condenser unit (V/K) that acts as an evaporator (V) or as a condenser (K) depending on the process phase. The method and the device intended for carrying out the method are characterized by a cyclic heat recovery that occurs at the same time in a heat recovery circuit having a temporary store (ZS) and a heat transfer medium, comprising the following steps.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: September 5, 2017
    Assignee: SORTECH AG
    Inventors: Sebastian Sommer, Ingo Dassler
  • Patent number: 9663591
    Abstract: The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 30, 2017
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: William Joseph Tchir, Eric Cheluget
  • Patent number: 9574800
    Abstract: An absorption refrigeration system can include: an evaporator configured to evaporate a first refrigerant; an absorber configured to contain an absorbent solution and absorb the evaporated first refrigerant; a regenerator configured to regenerate the absorbent solution by heating the absorbent solution supplied from the absorber; a condenser configured to condense the first refrigerant evaporated in the regenerator; a cooler configured to circulate a second refrigerant inside the evaporator, where the second refrigerant is cooled in the evaporator by evaporation of the first refrigerant; a hot water storage tank configured to store hot water that is heated by absorbing heat from the absorber and the condenser; one or more hot water consumption units configured to receive the hot water from the hot water storage tank; and one or more cold air consumption units configured to receive cooled second refrigerant from the evaporator via the cooler.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: February 21, 2017
    Assignee: DONGBU DAEWOO ELECTRONICS CORPORATION
    Inventor: Yong Deok Jeon
  • Patent number: 9499645
    Abstract: The Application of equations of state to experimental and literature data permits the formation of a model and phase diagram(s) that show under what conditions polyethylene is likely to precipitate out of a high pressure solution of polyethylene in supercritical ethylene. This then permits a better definition to run a high pressure reactor to reduce the likelihood of phase separation, loss of cooling and potentially decomposition of the reactor contents.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: November 22, 2016
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: William Joseph Tchir, Eric Cheluget
  • Patent number: 9435573
    Abstract: An adsorption heat pump includes: a first evaporator that evaporates a first fluid; a condenser that condenses the first fluid; a heater; and a rotary adsorption device. The rotary adsorption device includes: partitioning portions that radially partition a space encircling the rotation axis into plural regions, that each include a flow path for internally retaining and discharging a second fluid, and that each include an adsorbent on an outer surface thereof or on a wall surface of the flow path; and a pair of closure portions that close off both ends, in the direction of the rotation axis, of the plural regions. Each of the partitioning portions is moved alternately between the first evaporator side and the condenser side by rotation around the rotation axis. In the partitioning portions, retention and discharge of the first fluid, and discharge and retention of the second fluid, are repeated.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 6, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata, Takashi Shimazu
  • Patent number: 8966935
    Abstract: A heat exchanger is described and which includes a heat exchanger portion defining a multiplicity of internal passageways, and wherein at least one of the passageways is defined in part by a wicking structure; a refrigerant distributor coupled in fluid flowing relation relative to the defined passageways of the heat exchanger portion; and a source of ammonia refrigerant which is supplied to the internal passageways of the heat exchanger portion, and wherein substantial equal amounts of liquid refrigerant are supplied to each of the passageways defined by the heat exchanger portion.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: March 3, 2015
    Assignee: Colmac Coil Manufacturing, Inc.
    Inventor: Bruce I. Nelson
  • Publication number: 20150033777
    Abstract: A heat pump for heating a vehicle interior includes a compressor arranged in a heat-pump circuit of a working medium, a condenser, a throttle valve and an evaporator. Gaseous working medium is compressed in the compressor. The compressor outlet is connected to the inlet of the condenser in which the working medium condenses, at the same time discharging heat, the heat being delivered as useful heat directly or indirectly to a consumer. The condenser is followed by a jet pump, to which the liquid working medium coming from the condenser is delivered as driving medium and to which the gaseous working medium flowing out from the evaporator is delivered as suction medium, in such a way that the driving medium and suction medium are compressed in the jet pump as a two-phase mixture. The jet-pump outlet is connected to the inlet of a separator, to which the two-phase mixture is delivered and in which the gaseous working medium is separated from the liquid working medium.
    Type: Application
    Filed: July 21, 2014
    Publication date: February 5, 2015
    Inventor: Alexander SCHYDLO
  • Patent number: 8935932
    Abstract: The invention relates to vapor absorption refrigeration. The invention provides methods for carrying out vapor absorption refrigeration, and a vapor absorption refrigeration installation. The invention provides also a method for operating an absorption stage of a vapor absorption refrigeration system and an absorption stage installation for a vapor absorption refrigeration installation.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: January 20, 2015
    Assignee: Sunengen Limited
    Inventor: Peter David Coles
  • Patent number: 8932478
    Abstract: To absorb a volatile substance from a gas phase in a liquid absorbent, the gas phase is brought into contact with a film of an absorbent which comprises an ionic liquid and a wetting-promoting additive. The process can be used in absorption refrigerating machines.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: January 13, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Matthias Seiler, Bernd Glöckler, Peter Schwab, Stefan Kempka
  • Publication number: 20150000312
    Abstract: High efficiency heat pump combining absorption and solution concentration change. The method gives a few times higher efficiency for heat transfer applications like heating—air conditioning. It is a heat and mechanical compression method using liquid electrolyte solutions, combining steam absorption, solution concentration change and mechanical compression. There is no heat consumption. Steam condensation is performed by a high concentration solution and vaporization from a low concentration solution reducing in this way the required mechanical compression of the known refrigeration cycle. The method may be used for work production too, exploiting moderate temperature heat sources.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 1, 2015
    Inventor: Vasilios STYLIARAS
  • Publication number: 20140326007
    Abstract: Compositions and methods comprising metal organic frameworks (MOFs) and related uses are generally provided. In some embodiments, an MOF comprises a plurality of metal ions, each coordinated with at least one ligand comprising at least two unsaturated N-heterocyclic aromatic groups arranged about an organic core. In some embodiments, an MOF may be used in applications related to water adsorption.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 6, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Mircea Dinca, Casey R. Wade
  • Patent number: 8857203
    Abstract: A personal thermal regulation system includes a personal liquid cooling garment, wherein the personal liquid cooling garment is configured to circulate a working fluid therein, a membrane evaporator configured to receive circulated working fluid from the personal liquid cooling garment, wherein the membrane evaporator is further configured to evaporate a portion of the received circulated working fluid, and a chemical absorber in fluid communication with the membrane evaporator, wherein the chemical absorber is configured to receive a controlled flow of the evaporated portion of the received circulated working fluid from the membrane evaporator.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: October 14, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Edward W. Hodgson
  • Patent number: 8820079
    Abstract: Aspects of the present invention are directed to working fluids and their use in processes wherein the working fluids comprise compounds having the structure of formula (I): wherein R1, R2, R3, and R4 are each independently selected from the group consisting of: H, F, Cl, Br, and C1-C6 alkyl, at least C6 aryl, at least C3 cycloalkyl, and C6-C15 alkylaryl optionally substituted with at least one F, Cl, or Br, wherein formula (I) contains at least one F and at least one Cl or Br, provided that if any R is Br, then the compound does not have hydrogen. The working fluids are useful in Rankine cycle systems for efficiently converting waste heat generated from industrial processes, such as electric power generation from fuel cells, into mechanical energy or further to electric power. The working fluids of the invention are also useful in equipment employing other thermal energy conversion processes and cycles.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: September 2, 2014
    Assignee: Honeywell International Inc.
    Inventors: Gary Zyhowski, Ryan J. Hulse, Haridasan K. Nair, David Nalewajek, Rajiv R. Singh
  • Patent number: 8707729
    Abstract: The invention relates to an adsorber element for a heat exchanger and an adsorption heat pump or adsorption refrigerator that contains at least one such adsorber element. The adsorber element includes a heat-conducting solid body and a sorption material for a vaporous adsorbate arranged on the surface of this solid body. A fluid-tight foil composite is arranged on the outer surface of the open-pore solid body, at least in the areas in which a contact with a heat transfer fluid is provided, wherein this adsorber element is embodied such that the heat exchange between the open-pore solid body and the heat transfer fluid can take place via the fluid-tight foil composite.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: April 29, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Ferdinand Schmidt, Hans-Martin Henning, Gunther Munz, Gerald Rausch, Andrea Berg, Norbert Rodler, Cornelia Stramm
  • Patent number: 8701425
    Abstract: A refrigeration air conditioning system having a moisture adsorption means regenerated by discharged condensation heat or other discharged heat of a low temperature range in the refrigeration cycle, and exerting stable cooling performance even at a dry-bulb temperature of 0° C. or less. A desiccant rotor, holds an adsorbent having pore sizes of, for example, 1-1.4 nm in a space at a predetermined temperature range of a dry-bulb temperature of 0° C. or less. Forming of frost on an evaporator is prevented by supplying the dehumidified air by the desiccant rotor to the evaporator disposed on a leeward side thereof in a freezing room as the desiccant rotor is rotated, while the adsorbent having adsorbed moisture is dried and recovers its adsorbing ability by supplying the air dried by discharged heat from a condenser on the windward side thereof to the desiccant rotor outside of the freezing room.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: April 22, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Morimoto, Takeshi Sugimoto, Fumio Matsuoka, Tetsuya Yamashita, Koji Yamashita, Takeyuki Maegawa
  • Patent number: 8701426
    Abstract: A method and apparatus for preventing loss of a cooling fluid from a boiler in an aircraft by incorporating an absorber material is provided. In some aspects, an apparatus may include a base section, a top section, a cooling fluid, and an absorber material disposed in the base section. The absorber material may be configured to retain the cooling fluid therein. The apparatus may further include a barrier disposed between the base and top sections. The barrier may be configured to retain the absorber material in the base section while allowing the cooling fluid to pass therethrough.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: April 22, 2014
    Assignee: Lockheed Martin Corporation
    Inventor: Frank E. Mills
  • Patent number: 8689571
    Abstract: Provided is a dryer for minimizing moisture entrained within a refrigerant used to provide a cooling effect to a temperature-controlled environment, and a refrigeration appliance including such a dryer. The dryer includes a housing defining a drying chamber and a desiccant disposed within the drying chamber for removing at least a portion of the moisture from the refrigerant. A first outlet is formed in the housing adjacent a lower region of the drying chamber when the drying chamber is viewed in an operational orientation. A second outlet is also formed in the housing at an elevation vertically above the first outlet when the dryer is viewed in the operational orientation for discharging at least a portion of the refrigerant introduced into the drying chamber to be delivered to a second heat exchanger with a relatively-low internal pressure. The elevation of the second outlet relative to the first outlet promotes the discharge of the refrigerant through the first outlet instead of through the second outlet.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: April 8, 2014
    Assignee: Electrolux Home Products, Inc.
    Inventors: Juan Antonio Contreras Lafaire, David L. Hall, Marcelo Candeo, Dennis Carl Hansen
  • Publication number: 20140053582
    Abstract: A salt or CaO coated with hydrophobic nanoparticles comprises an inner part and an outer coating, forming a particle with a permeable membrane keeping liquid inside and letting gas pass. Said inner part comprises at least one selected from a salt and CaO and said outer coating comprises hydrophobic nanoparticles. Known machines and processes can get enhanced functionality the particles comprising salt and nanoparticles. For machines working according to matrix and hybrid principles the particles can act as a matrix, thereby substituting expensive matrix material. Further applications include storage of chemical energy. A device is adapted to perform an absorption process, said device comprising at least one particle. Advantages include that corrosion is reduced or even eliminated. The long term stability of absorption machines is increased and migration of salt in liquid and gas phase is avoided.
    Type: Application
    Filed: March 1, 2012
    Publication date: February 27, 2014
    Applicant: CLIMATEWELL AB
    Inventors: Göran Bolin, Dmitri Glebov
  • Patent number: 8616015
    Abstract: A cooling circuit for removing waste heat from a cooling device of an electromechanical converter is provided. The cooling circuit includes a chilling medium, a cooler for extracting heat from the chilling medium, a return connecting the cooling device of the converter to the cooler and conducts warm chilling medium, a feed connecting the cooler to the cooling device of the converter and conducts cool chilling medium, and an absorption chiller for extracting heat from the chilling medium. The absorption chiller is driven by the heat of the warm chilling medium that is in the return.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: December 31, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Volker Amedick, Malte Blomeyer, Leandro Cravero, Eberhard Deuker, Hendrik Heitfeld, Carsten Kaufmann, Meinolf Klocke, Stefan Völker
  • Publication number: 20130312440
    Abstract: An absorption chiller system is provided. The system includes an evaporator, an absorber, a divider, a recirculating loop, and a primary heater. The evaporator includes a first working fluid inlet and a first working fluid outlet. The absorber includes a second working fluid inlet and a second working fluid outlet. The divider has opposing first and second sides, wherein the first side is in fluid communication with the evaporator and the second side is in fluid communication with the absorber. The recirculating loop connects the first working fluid outlet back to the evaporator, and the primary heater is disposed in thermal communication with the recirculating loop.
    Type: Application
    Filed: May 24, 2012
    Publication date: November 28, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ching-Jen Tang, William Dwight Gerstler
  • Publication number: 20130269375
    Abstract: Vapour absorption refrigeration is carried out by condensing, in a condensing stage (98), a refrigerant in vapour form to obtain condensed refrigerant, being passed into an expansion/evaporation stage (16) in which it is subjected to heat transfer with a higher temperature medium (29) such that at least some of the refrigerant evaporates. Vapourised refrigerant passes from the evaporation stage into an absorption stage (30) in which some of it is absorbed, at a first pressure, into an absorbent, thereby to obtain partially refrigerant-enriched absorbent. This absorbent is contacted, in a compression absorption stage (58) at a second pressure greater than the first pressure, with vapourised refrigerant, rendering refrigerant-enriched absorbent which is passed from the compression absorption stage into a refrigerant regeneration stage (62), in which refrigerant in vapour form is recovered, rendering refrigerant-depleted absorbent.
    Type: Application
    Filed: September 29, 2011
    Publication date: October 17, 2013
    Applicant: SUNENGEN LIMITED
    Inventor: Peter David Coles
  • Patent number: 8539781
    Abstract: An adsorption structure is described that includes at least one adsorbent member formed of an adsorbent material and at least one porous member provided in contact with a portion of the adsorbent member to allow gas to enter and exit the portion of the adsorbent member. Such adsorption structure is usefully employed in adsorbent-based refrigeration systems. A method also is described for producing an adsorbent material, in which a first polymeric material is provided having a first density and a second polymeric material is provided having a second density, in which the second polymeric material is in contact with the first polymeric material to form a structure. The structure is pyrolyzed to form a porous adsorbent material including a first region corresponding to the first polymeric material and a second region corresponding to the second polymeric material, in which at least one of the pore sizes and the pore distribution differs between the first region and the second region.
    Type: Grant
    Filed: June 22, 2008
    Date of Patent: September 24, 2013
    Assignee: Advanced Technology Materials, Inc.
    Inventors: J. Donald Carruthers, Karl Boggs, Luping Wang, Shaun Wilson, Jose I. Arno, Paul J. Marganski, Steven M. Bilodeau, Peng Zou, Brian Bobita, Joseph D. Sweeney, Douglas Edwards
  • Patent number: 8539782
    Abstract: The invention relates to a method for controlling the power of a sorption refrigeration system, comprising an adsorber unit, a condenser (C), and an evaporator (E) through which a cooling carrier fluid (KT) flows, with alternating application of the adsorber unit by a valve unit (HV_IN, HV_OUT) operated via a controller, having a circuit process of at least one sorption phase and at least one heat recovery phase, wherein a measurement of a current cooling carrier outlet temperature (Takt) is carried out in the return of the evaporator, a calculation of an averaged cooling carrier outlet temperature (Tgem) is carried out during the first and second sorption phases with a comparison to the current cooling carrier outlet temperature (Takt), and a control signal is trigger upon completion of the sorption phase as a function of the difference between the averaged cooling carrier outlet temperature (Tgem) and the current cooling carrier outlet temperature (Tgem). The invention provides a corresponding device.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: September 24, 2013
    Assignee: SorTech AG
    Inventors: Thomas Büttner, Walter Mittelbach
  • Patent number: 8506839
    Abstract: This invention relates to a composition comprising water and at least one ionic liquid, and also to devices capable of executing an absorption cycle using such compositions as a refrigerant pair. This invention also provides a method of cooling using an absorption cycle comprising water as the refrigerant and at least one ionic liquid as the absorbent. The present invention also provides a method of heating using an absorption cycle comprising water as the refrigerant and at least one ionic liquid.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: August 13, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mark Brandon Shiflett, Akimichi Yokozeki
  • Patent number: 8479526
    Abstract: A refrigerant charging method for an air conditioning device in which carbon dioxide is used as a refrigerant includes a connecting step and a refrigerant charging step. In the connecting step, a cylinder containing the refrigerant is connected to a space in the air conditioning device intended to be charged by the refrigerant. A heater is interposed between the cylinder and the air conditioning device. In the refrigerant charging step, the refrigerant is moved to the intended charging space from the cylinder, via the heater. In the refrigerant charging step, further, the refrigerant that has exited the cylinder is heated by the heater so that a specific enthalpy of the refrigerant when it enters the intended charging space will be 430 kJ/kg or higher.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: July 9, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Hiromune Matsuoka, Toshiyuki Kurihara
  • Patent number: 8474276
    Abstract: A direct expansion ammonia refrigeration system and a method of direct expansion ammonia refrigeration is described and which includes a source of liquid ammonia refrigerant which is delivered in fluid flowing relation to a plurality of evaporator tubes which incorporate wicking structures, and which through capillary action facilitated by the wicking structures are effective for drawing liquid ammonia refrigerant along the inside facing surface of the evaporator tubes so as to substantially reduce any stratified and/or wavy flow patterns of the liquid ammonia refrigerant within the evaporator tubes. The invention further includes a novel accumulator vessel and heat exchanger vessel which are coupled in fluid flowing relation relative to the direct expansion ammonia refrigeration system and which facilitate the removal of water from the ammonia refrigerant in order to enhance the operation of the direct expansion ammonia refrigeration system.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: July 2, 2013
    Assignee: Colmac Coil Mfg., Inc.
    Inventor: Bruce I. Nelson
  • Publication number: 20130152612
    Abstract: Sorption cooling systems and methods for using sorption cooling systems, particularly to control the interior climate of vehicles, buildings, appliances and other enclosed spaces. The sorption cooling systems may incorporate sorbent beds having a low thermal mass that are capable of rapid cycle times to increase the efficiency of the sorption cooling systems.
    Type: Application
    Filed: August 15, 2012
    Publication date: June 20, 2013
    Applicant: Nanopore, Inc.
    Inventors: Douglas M. Smith, Stephen Wallace
  • Publication number: 20130091879
    Abstract: An adsorption heat pump using a heat source having a lower temperature and an adsorbent which has a large difference in water adsorption amount in adsorption/desorption and can be regenerated at a low temperature. An adsorption heat pump including an adsorbate, an adsorption/desorption part having an adsorbent for adsorbate adsorption/desorption, a vaporization part for adsorbate vaporization connected to the adsorption/desorption part, and a condensation part for adsorbate condensation connected to the adsorption/desorption part, wherein the adsorbent, when examined at 25° C., gives a water vapor adsorption isotherm which, in the relative vapor pressure range of from 0.05 to 0.30, has a relative vapor pressure region in which a change in relative vapor pressure of 0.15 results in a change in water adsorption amount of 0.18 g/g or larger.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 18, 2013
    Applicants: DENSO CORPORATION, MITSUBISHI PLASTICS, INC.
    Inventors: MITSUBISHI PLASTICS, INC., DENSO CORPORATION
  • Publication number: 20130081413
    Abstract: A method when extracting solvent and heat from a gas (B) to absorb solvent in a solution (D) containing solvent and one or several absorbents with strong affinity to the solvent, wherein the absorption takes place so that gas (B) and solution (D) is contacted in parallel flow mainly on one side of a heat exchanger, where the heat liberated at the absorption simultaneously is transferred indirectly or regeneratively to a cooling medium (F, G), which meets the absorption media in counter flow.
    Type: Application
    Filed: June 16, 2011
    Publication date: April 4, 2013
    Inventor: Tomas Åbyhammar
  • Patent number: 8359882
    Abstract: An air conditioning and heating system includes an condenser, an expansion valve, an evaporator and a compressor interconnected in a closed loop system, and a motor for driving the compressor. The system also includes a refrigerant disposed within the closed loop system. The compressor compresses the refrigerant and pumps the refrigerant through the system. The system also includes one or more feedback loops to reduce the temperature (pre-cool) the refrigerant before it reaches the expansion valve in the cooling mode and the same or a different heat exchanger in the heating mode. The additional heat exchangers are placed in the loop to reduce the electric energy being used.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: January 29, 2013
    Inventor: Abdullah A. Al-Eidan
  • Patent number: 8333079
    Abstract: An adsorption heat pump is provided in which water vapor can be efficiently adsorbed and desorbed using a heat source having a lower temperature than ones heretofore in use because the pump employs an adsorbent which has a large difference in water adsorption amount in adsorption/desorption and can be regenerated (release the adsorbate) at a low temperature. The invention provides an adsorption heat pump which comprises an adsorbate, an adsorption/desorption part having an adsorbent for adsorbate adsorption/desorption, a vaporization part for adsorbate vaporization which has been connected to the adsorption/desorption part, and a condensation part for adsorbate condensation which has been connected to the adsorption/desorption part, wherein the adsorbent, when examined at 25° C., gives a water vapor adsorption isotherm which, in the relative vapor pressure range of from 0.05 to 0.30, has a relative vapor pressure region in which a change in relative vapor pressure of 0.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: December 18, 2012
    Assignees: Mitsubishi Plastics, Inc., Denso Corporation
    Inventors: Hiroyuki Kakiuchi, Takahiko Takewaki, Masaru Fujii, Masanori Yamazaki, Hideaki Takumi, Hiromu Watanabe, Kouji Inagaki, Atsushi Kosaka, Seiji Inoue, Satoshi Inoue
  • Patent number: 8293388
    Abstract: A thermal energy battery for cooling temperature sensitive components comprises a composite of a sorbent with ammonia, water, alcohol, amine or a fluorocarbon refrigerant absorbed thereon and incorporated on a substrate material. The composite is encased in a containment material configured to rupture or otherwise release refrigerant desorbed by the sorbent composition when internal battery pressure reaches a threshold ?P from the outside pressure, and thermal conduction means in thermal contact with the thermal energy battery and one or more temperature sensitive components for directing thermal energy therebetween to heat the composite and cool the temperature sensitive components.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: October 23, 2012
    Assignee: Rocky Research
    Inventor: Uwe Rockenfeller
  • Patent number: 8181469
    Abstract: A refrigerating method and a refrigerating system utilizing a large decomposition heat absorbed at the time of decomposition of the gas hydrate and building up, by a pump, the pressure of liquid components generated due to the decomposition of gas hydrate and compressing only gas components by a compressor, the refrigerating method comprising the steps of generating the gas hydrate (H) by a hydrate generating reactor (11), decomposing the gas hydrate (H) into the liquid components (L) and the gas components (G) after depressurization to absorb heat, separating the decomposed liquid components (L) and gas components (G) from each other, building up the pressure of the liquid components (L) by the pump (16) and transferring to the hydrate generating reactor (11), and pressurizing and compressing only the gas components (G) by the compressor (17) and transferring to the hydrate generating reactor (11).
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: May 22, 2012
    Assignee: Mitsui Zosen Plant Engineering Inc.
    Inventors: Toshio Ichijo, Kikuo Nakamura
  • Publication number: 20120017613
    Abstract: This invention relates to a temperature adjustment device that executes an absorption cooling or heating cycle in which a lithium halide, typically a lithium bromide, absorbent is used.
    Type: Application
    Filed: March 31, 2010
    Publication date: January 26, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Foo, Edward R. Murphy, Dennis A. Redder, Mark A. Scialdone, Mark Brandon Shiflett
  • Publication number: 20120000221
    Abstract: An absorption heat pump system that can include a first assembly, a second assembly, and a thermal coupler is disclosed herein. The first assembly can include a condenser and an evaporator. The second assembly can include an absorber, a desorber, and a heat exchanger. The thermal coupler can include a first gas inlet, a second fluid inlet, and a mixed fluid outlet. The system can be configured with a first gas outlet of the desorber in fluid communication with the first gas inlet of the thermal coupler, and the mixed fluid outlet of the thermal coupler in fluid communication with a mixed fluid inlet of the evaporator. The system can also include a coolant absorber inlet and outlet on the absorber and a coolant condenser inlet and outlet on the condenser, with the coolant absorber outlet in fluid communication with the coolant condenser inlet.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 5, 2012
    Inventors: Omar ABDELAZIZ, Edward Allan VINEYARD, Abdolreza ZALTASH, Kai WANG
  • Patent number: 8047010
    Abstract: A portable apparatus and method for providing a cooled liquid for vascular administration are disclosed. The portable apparatus includes a source of liquid for vascular administration, a cooling reservoir for receiving liquid from the source, and a sorption-based heat exchanger for cooling liquid in the cooling reservoir by a sorption-based process. The heat exchanger may include an evaporative area for receiving and vaporizing a refrigerant, a sorptive material for sorping vaporized refrigerant, and a heat exchange member for conducting thermal energy from liquid in the cooling reservoir into the evaporative area. Additional componentry may be provided for fluidly interconnecting and controlling the flow of liquid from the source to the cooling reservoir and from the cooling reservoir to a vascular interface device. Such componentry may be conveniently packaged in a sterilized manner together with at least the cooling reservoir.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: November 1, 2011
    Assignee: Medivance Incorporated
    Inventors: Gary A. Carson, Marc E. Voorhees
  • Publication number: 20110232306
    Abstract: An absorptive refrigeration method and refrigerant/absorbant pairs comprising fluorinated organic compounds, such as fluorinated organic compounds having from one to eight carbon atoms (C1-C8), including hydrofluoroolefin and/or hydrochlorofluoroolefin compounds. In certain embodiments, a fluorinated organic compound, including certain hydrofluoroolefin and/or hydrochlorofluoroolefin compounds (e.g. C2-C4 hydrofluoroolefin and/or hydrochlorofluoroolefin compounds) is/are utilized as the refrigerant, with the absorbant portion either being a fluorinated organic compound or a non-fluorinated oil.
    Type: Application
    Filed: March 30, 2011
    Publication date: September 29, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: RYAN HULSE, CHRISTOPHER J. SEETON, MARK W. SPATZ, RAJIV R. SINGH
  • Patent number: 7958738
    Abstract: A direct expansion ammonia refrigeration system and a method of direct expansion ammonia refrigeration is described and which includes a source of liquid ammonia refrigerant which is delivered in fluid flowing relation to a plurality of evaporator tubes which incorporate wicking structures, and which through capillary action facilitated by the wicking structures are effective for drawing liquid ammonia refrigerant along the inside facing surface of the evaporator tubes so as to substantially reduce any stratified and/or wavy flow patterns of the liquid ammonia refrigerant within the evaporator tubes. The invention further includes a novel accumulator vessel and heat exchanger vessel which are coupled in fluid flowing relation relative to the direct expansion ammonia refrigeration system and which facilitate the removal of water from the ammonia refrigerant in order to enhance the operation of the direct expansion ammonia refrigeration system.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: June 14, 2011
    Assignee: Colmac Coil Mfg., Inc.
    Inventor: Bruce Ian Nelson
  • Publication number: 20110126563
    Abstract: A device, such as an absorption chiller sub-system, is provided. The absorption chiller sub-system can include an evaporator and an absorber. The evaporator can be configured to receive a liquid first working fluid and to produce first working fluid vapor. The absorber can be configured to receive and combine first working fluid vapor and a second working fluid, for example, so as to release thermal energy. A divider having opposing first and second sides in respective fluid communication with the evaporator and the absorber can also be included. The divider can be configured to allow first working fluid vapor to pass therethrough between the first and second sides and to inhibit movement of liquid first working fluid therethrough between the first and second sides. Associated systems and methods are also provided.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ching-Jen Tang, William Dwight Gerstler, AliciA Jillian Jackson Hardy, Helge Klockow, Sherif Hatem Abdulla Mohamed, Andrew Philip Shapiro, Yogen Vishwas Utturkar, Todd Garrett Wetzel, Paul Brian Wickersham
  • Publication number: 20110005246
    Abstract: The invention relates to a method for controlling the power of a sorption refrigeration system, comprising an adsorber unit, a condenser (C), and an evaporator (E) through which a cooling carrier fluid (KT) flows, with alternating application of the adsorber unit by a valve unit (HV_IN, HV_OUT) operated via a controller, having a circuit process of at least one sorption phase and at least one heat recovery phase, wherein a measurement of a current cooling carrier outlet temperature (Takt) is carried out in the return of the evaporator, a calculation of an averaged cooling carrier outlet temperature (Tgem) is carried out during the first and second sorption phases with a comparison to the current cooling carrier outlet temperature (Takt), and a control signal is trigger upon completion of the sorption phase as a function of the difference between the averaged cooling carrier outlet temperature (Tgem) and the current cooling carrier outlet temperature (Tgem). The invention provides a corresponding device.
    Type: Application
    Filed: November 19, 2008
    Publication date: January 13, 2011
    Applicant: SorTech AG
    Inventors: Thomas Büttner, Walter Mittelbach
  • Publication number: 20110000236
    Abstract: To absorb a volatile substance from a gas phase in a liquid absorbent, the gas phase is brought into contact with a film of an absorbent which comprises an ionic liquid and a wetting-promoting additive. The process can be used in absorption refrigerating machines.
    Type: Application
    Filed: December 3, 2008
    Publication date: January 6, 2011
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Matthias Seiler, Bernd Glockler, Peter Schwab, Stefan Kempka
  • Publication number: 20100257879
    Abstract: The present invention relates to a hybrid vapor compression—absorption cooling or heating system and apparatus containing a refrigerant pair comprising at least one refrigerant and at least one ionic liquid. The present invention also provides for the performance of a hybrid vapor compression—absorption cycle that utilizes refrigerants and absorbents such as fluorocarbon gases in fluorinated ionic liquids. The present invention also provides a method of cooling by the execution of a hybrid vapor compression—absorption cycle using a refrigerant pair comprising at least one refrigerant and at least one ionic liquid. The present invention also provides a method of heating by the execution of a hybrid vapor compression—absorption cycle using a refrigerant pair comprising at least one refrigerant and at least one ionic liquid.
    Type: Application
    Filed: June 22, 2010
    Publication date: October 14, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Brandon Shiflett, Akimichi Yokozeki
  • Publication number: 20100132359
    Abstract: A sorption system is disclosed that includes a sorbent material and a fluid, in which the sorbent material and fluid in combination have a pressure index of at least 1.2.
    Type: Application
    Filed: October 21, 2009
    Publication date: June 3, 2010
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Bhupender S. Minhas, Ian A. Cody, Don E. Stratton, Sebastian C. Reyes, Charanjit S. Paur, Erick D. Gamas-Castellanos, Mohsen S. Yeganeh, Thomas F. Degnan
  • Publication number: 20100132384
    Abstract: A thermal energy transfer system utilizes a composition containing one or more polyols, such as 1,3-propanediol, and one or more ionic liquids as a thermal energy transfer composition. There is also provided a method of transferring thermal energy and a process for temperature adjustment, either cooling or heating, using such a composition.
    Type: Application
    Filed: April 3, 2008
    Publication date: June 3, 2010
    Inventors: Mark Brandon Shiflett, Akimichi Yokozeki