Sorbent Type Patents (Class 62/476)
  • Patent number: 10948211
    Abstract: A water circulation system for air conditioning system and a control method thereof, wherein the water circulation loop comprises: a main loop provided with air-conditioning indoor units, air-conditioning outdoor units and an actuator, and a bypass branch connected between upstream and downstream of the air-conditioning outdoor units and provided with a bypass valve; the control method comprises: S100, starting the water circulation system after receiving a start command; S200, executing a PID control step after initialization and a first preset time period of the water circulation system; S300, executing a feed forward control step when the operating states of the air-conditioning indoor units and/or the air-conditioning outdoor units are changed, and going back to execute the PID control step after a second preset time period; and S400, executing a shutdown step of the water circulation system after receiving a shutdown command.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: March 16, 2021
    Inventors: Liang Chang, Jingwei Sun, Pei Sun, Lishan Wang, Jian Ni, Qing Lu
  • Patent number: 10648710
    Abstract: A heat pump system generates cooling by evaporating a refrigerant using an evaporator, and generates cooling by using a compressor to desorb refrigerant that has been evaporated by the evaporator and adsorbed at an adsorption device.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 12, 2020
    Inventors: Yasuki Hirota, Ryuichi Iwata, Tsutomu Shinagawa, Takafumi Yamauchi
  • Patent number: 10514212
    Abstract: A device and method for changing a fluid from one state to another state, the states comprising a liquid and a vapour state are disclosed. The device comprises: an inlet configured to receive the fluid in a first state; an outlet configured to output the fluid in a second state; and a conduit connecting the inlet to the outlet. The conduit is configured such that a resistance to flow changes along at least a portion of a flow axis within the conduit. The device further comprises a controller configured to control a location of a region within the portion of the conduit in which the fluid changes state by controlling at least one of a temperature of the fluid and a pressure at at least one of the inlet and the outlet.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: December 24, 2019
    Assignee: Edwards Limited
    Inventors: Daniel Masse, Ali Shajii, Michael McBrien
  • Patent number: 10465950
    Abstract: This invention relates to using a guanidinium-based ionic liquid as an absorbent material in an absorption chiller. The invention provides an absorption chiller comprising a mixture of a refrigerant and an absorbent, and the absorbent is a guanidinium-based ionic liquid. A preferred refrigerant is water. This invention also provides a method for synthesizing N,N,N?,N?,N?,N?-hexamethylguanidinium acetate.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: November 5, 2019
    Inventors: Amirhossein Mehrkesh, Stefan Maat, George G. Tamas
  • Patent number: 10429103
    Abstract: A liquid absorption refrigeration system and a tube and channel heat exchanger include: an absorber section to contain a saturated strong solution; a pump connected to an outlet of the absorber section to receive saturated strong solution therefrom; a regenerator section connected to an outlet of the pump to receive a flow of pressurized saturated strong solution therefrom; an expansion device connected to an outlet of the regenerator section to receive a flow of subcooled strong solution therefrom; an evaporator section connected to an outlet of the expansion device to receive the subcooled strong solution therefrom, the evaporator section connected to the absorber section to return strong solution thereto; and a condenser section connected to the evaporator section to receive a refrigerant evaporated from the subcooled strong solution in the evaporator, the condenser section connected to the absorber section to return liquid refrigerant thereto.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: October 1, 2019
    Inventor: Theodore John Groncki, III
  • Patent number: 10137762
    Abstract: A vehicular adsorption type air conditioning device including: a heater core and an interior heat exchanger that perform heat exchange between air inside a vehicle cabin and a heating medium; an exterior heat exchanger that performs heat exchange between air outside the vehicle cabin and the heating medium; a heating flow path section that circulates the heating medium between a high temperature heat source of the vehicle and the heater core; a plurality of adsorption vessels each including an adsorption section and an evaporation-condensation section, with an adsorbent and a refrigerant sealed within the adsorption vessels; and a flow path system; the flow path system being capable of switching between a cooling mode, a first heating mode, and a second heating mode.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: November 27, 2018
    Inventor: Masakatsu Tsubouchi
  • Patent number: 9951976
    Abstract: An absorption based heater is constructed on a fluid barrier heat exchanging plate such that it requires little space in a structure. The absorption based heater has a desorber, heat exchanger, and absorber sequentially placed on the fluid barrier heat exchanging plate. The vapor exchange faces of the desorber and the absorber are covered by a vapor permeable membrane that is permeable to a refrigerant vapor but impermeable to an absorbent. A process fluid flows on the side of the fluid barrier heat exchanging plate opposite the vapor exchange face through the absorber and subsequently through the heat exchanger. The absorption based heater can include a second plate with a condenser situated parallel to the fluid barrier heat exchanging plate and opposing the desorber for condensation of the refrigerant for additional heating of the process fluid.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: April 24, 2018
    Inventors: Saeed Moghaddam, Devesh Chugh
  • Patent number: 9890983
    Abstract: A Step Flow control device and methods therefore provide instructions to control operation of various absorption chiller components based on measured load or temperature information. Operating an absorption chiller according to Step Flow balances the flow of heat energy through the absorption chiller to increase efficiency and prevent crystallization. The control device may be integrated into various components of an absorption chiller or may be remote therefrom. In this manner, Step Flow can be used in new absorption chiller installations or be used to retrofit existing installations.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: February 13, 2018
    Inventor: Robert Higgins
  • Patent number: 9851129
    Abstract: An ionic air cooling device comprising a salinity differential heat engine using a heat pump as the primary heat source and the mechanism by which the temperature differential is achieved. A closed loop thermodynamic cycle which produces a high thermodynamic efficiency in heat to energy conversion with a low temperature differential between the high and low sides, in addition to a net ambient temperature cooling effect by directly or indirectly converting ambient temperature/environmental low grade heat to electricity or potential kinetic energy or mechanical work. An ionic air cooling device which uses a salinity differential heat engine in which the heat energy can be converted to kinetic or electrical energy by means of pressure retarded osmosis, pressurized gas through volume confinement, or reversed electro dialysis.
    Type: Grant
    Filed: May 25, 2015
    Date of Patent: December 26, 2017
    Inventor: David John Tanner
  • Patent number: 9718155
    Abstract: An insulated heat exchanger tube assembly is disclosed herein comprising a heat exchanger tube, an insulating portion form-fitted around the heat exchanger tube, the insulating portion comprising a polymeric foam, and a polymeric film formed over and adhered to the insulating portion. A heat exchanger formed from the tube and a method of forming an insulated heat exchanger tube also are disclosed. The tube assembly is useful in making a heat exchanger that requires minimal floor space and can be efficiently assembled.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: August 1, 2017
    Assignee: Turbotec Products, Inc.
    Inventor: Todd A. Duckwitz
  • Patent number: 9689591
    Abstract: The invention provides the sectional regenerative third-type absorption heat pump which belongs to low-temperature waste heat utilization and refrigeration technique filed. It mainly comprises four generators, four absorbers, a condenser, an evaporator, a throttle, four solution pumps and four solution heat exchangers. The refrigerant vapor of the first generator is provided for condenser. The refrigerant liquid of condenser is provided for evaporator. The refrigerant vapor of evaporator is provided for the first absorber. The second generator and the second absorber, the third generator and the third absorber respectively form the driving heat sectional regenerative process. The third generator and the third absorber form the waste heat regenerative process. The first absorber, the second absorber and the third absorber supply heat to the condenser. The fourth absorber releases the low temperature heat. The sectional regenerative third-type absorption heat pump is thereby formed.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: June 27, 2017
    Inventor: Huayu Li
  • Patent number: 9612043
    Abstract: A refrigeration method reduces compressor energy usage in a hydrocarbon refrigeration system by incorporating a distillation/adsorption cycle. The method and related systems can use waste or other heat sources to replace a portion of the mechanical energy of the compression cycle in a novel process scheme easily adapted to either new or existing refrigeration systems. The present hybrid vapor compression-adsorption cycle combines both the refrigerant and adsorption medium in the compression cycle and separates these components using conventional multi-stage distillation to then separate them for the refrigeration and adsorption cycles.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: April 4, 2017
    Inventor: Pierre E. Lugosch
  • Patent number: 9595357
    Abstract: A passive cooling system of a nuclear power plant includes a steam generator, a cooling water storage tank, a water cooling heat exchanger, an air cooling heat exchanger, a divergence valve, and a cooling tower. The steam generator generates steam by heat exchange with a primary coolant system, and the cooling water storage tank stores cooling water therein. The water cooling heat exchanger is disposed in the cooling water storage tank, and the air cooling heat exchanger is connected to the steam generator. The divergence valve is controllable to divert steam from the steam generator into both the water cooling heat exchanger and the air cooling heat exchanger. Each of the cooling water storage tank, the water cooling heat exchanger, and the air cooling heat exchanger are located in the cooling tower.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: March 14, 2017
    Inventors: Sang Jong Lee, Young Baek Kim, Byung Chan Baek, Hae Nam Yang, Dae Jin Lee, Young Jae Choi, Jae Kyu Lee, Kyun Heo, Kyung Woo Shim, Seoung Eun Chun
  • Patent number: 9568222
    Abstract: A subassembly for an adsorption chiller includes an adsorption component that includes a plurality of plates arranged in a stack. Refrigerant passages are defined between refrigerant sides of adjacent pairs of the plates in the stack. An adsorbent material is disposed within the refrigerant passages.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: February 14, 2017
    Inventor: Sean Garner
  • Patent number: 9464823
    Abstract: The invention is directed toward a vapor-liquid heat and/or mass exchange device that can be used in an integrated heat and/or mass transfer system. To achieve high heat and mass transfer rates, optimal temperature profiles, size reduction and performance increases, appropriately sized flow passages with microscale features, and countercurrent flow configurations between working fluid solution, vapor stream, and/or the coupling fluid in one or more functional sections of the desorber are implemented. In one exemplary embodiment of the present invention, a desorber section utilizes a heating fluid flowing in a generally upward direction and a concentrated solution flowing in a generally downward direction with gravity countercurrent to the rising desorbed vapor stream. To further increase the efficiency of the system, various types of column configurations can be used. Additionally, the surfaces of the microchannels can be altered to better transfer heat.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: October 11, 2016
    Inventors: Srinivas Garimella, Jared Carpenter Delahanty, Ananda Krishna Nagavarapu
  • Patent number: 9464815
    Abstract: Systems, devices, and methods are presented for using a liquid desiccant to regulate a moisture content of air conditioned by a heating, ventilating, and air conditioning (HVAC) system. The liquid desiccant is disposed within a processing volume, which is substantially-enclosed and substantially segregates the liquid desiccant from the conditioned air. A pair of vapor-permeable membranes define opposite surfaces of the processing volume. Water vapor diffuses through the vapor-permeable membranes, thereby enabling an exchange of moisture between the liquid desiccant and the conditioned air. The refrigerant circuit itself is used to cool desiccant in the absorber and heat desiccant in the desorber. Other systems, devices, and methods are presented.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: October 11, 2016
    Assignee: Lennox Industries Inc.
    Inventor: Robert B. Uselton
  • Patent number: 9435553
    Abstract: A cooling system including a first cooling apparatus thermally exposed to a space to be cooled. The cooling system further includes a second cooling apparatus thermally exposed to the space to be cooled and thermally exposed to the first cooling apparatus. Heat discharged from the second cooling apparatus powers the first cooling apparatus.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 6, 2016
    Assignee: ThermoTek, Inc.
    Inventor: Tony Quisenberry
  • Patent number: 9269978
    Abstract: A wind power and hydrogen power complex generating device includes a fan assembly having a blade unit and a demultiplexer connected to the blade unit. A heating unit is connected to a first output end of the demultiplexer. A pump is connected to a second output end of the demultiplexer. The pump pressurizes liquid water. A heating assembly is connected to the pump and the heating unit. The heating assembly heats the liquid water into a critical state. An electrolyzing unit includes an input end, a hydrogen output end, and an oxygen output end. The input end is connected to the heating assembly. The electrolyzing unit electrolyzes the liquid water in the critical state into gaseous hydrogen and gaseous oxygen. A fuel cell unit includes an anode passage connected to the hydrogen output end and a cathode passage connected to the oxygen output end.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: February 23, 2016
    Inventors: Chang-Hsien Tai, JR-Ming Miao, Yao-Nan Wang
  • Publication number: 20150143827
    Abstract: An economizer for a solar powered intermittent absorption refrigeration system improves the coefficient of performance of the refrigeration system. The economizer recovers waste energy rejected by an absorber during an absorption process, stores the waste energy, and supplies the waste energy to a generator during a generation process, thereby reducing the amount of energy input needed to operate the system.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Inventors: Syed Ahmed Mohammad Said, Muhammad Umar Siddiqui
  • Publication number: 20150135731
    Abstract: A multi-stage closed-cycle cryogenic refrigeration system is disclosed. The system includes an adsorption refrigerator having a multi-chambered pump unit that can be flexibly configured in the context of the cryogenic refrigeration system resulting in a more efficient design that has a smaller overall size than prior systems and other advantages.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: Photon Spot, Inc.
    Inventors: Vikas Anant, Brian Siu-Fung Ma
  • Patent number: 9032752
    Abstract: A system configured to thermally regulate exhaust portions of a power plant system (e.g. steam turbine) is disclosed. In one embodiment, a system includes: a condenser adapted to connect to and thermally regulate exhaust portions of a steam turbine; and a cooling system operably connected to the condenser and adapted to supply a cooling fluid to the condenser, the cooling system including a solar absorption chiller adapted to adjust a temperature of the cooling fluid.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: May 19, 2015
    Assignee: General Electric Company
    Inventors: Scott Victor Hannula, Duncan George Watt
  • Publication number: 20150128639
    Abstract: A sorption heat exchanger module having a housing, in which a sorption heat exchanger through which a working medium flows is disposed, in which module a housing wall is configured as a heat exchanger structure. In the case of a sorption heat exchanger module in which the presence of passive thermal surfaces is reduced, at least one pipe structure through which a coolant flows is thermally connected with an outside and/or an inside of the housing wall.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 14, 2015
    Inventors: Roland BURK, Lars LUDWIG
  • Publication number: 20150128638
    Abstract: A thermally driven condenser unit and an adsorption heat plant constructed therewith, which can be used as an adsorption heat pump, adsorption refrigeration plant, heat store and/or refrigeration storage mechanism. The thermally driven condenser unit integrates a thermal compressor and a condenser in a modular component.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Inventor: Roland BURK
  • Publication number: 20150129160
    Abstract: A method and device for cooling and/or heating media, preferably in a motor vehicle, the method in which at least one first heat source is cooled and at least one second heat sink is heated by a thermal management system. In a method in which the heating or cooling can occur on demand, heat and/or cold are shifted by the thermal management system in space and time to the heat sink and/or heat source, which is characterized by need.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Inventor: Roland BURK
  • Publication number: 20150121916
    Abstract: The present invention relates to an enclosure which is refrigerated and kept at a predetermined set temperature (Te), containing the evaporator (7) of a refrigerating unit (5).
    Type: Application
    Filed: July 16, 2013
    Publication date: May 7, 2015
    Applicant: COLDWAY
    Inventors: Laurent Rigaud, Francis Kindbeiter
  • Patent number: 8997505
    Abstract: A vehicle climate control system includes a thermal-adsorption heat pump driven by engine exhaust heat, the heat pump including two adsorbers asynchronously switching between adsorbing and desorbing modes, each adsorber coupled with a corresponding antifreeze tank via a plurality of refrigerant-containing wick chambers. Cold heat transfer fluid (HTF) flows through the adsorber during the adsorbing mode which causes evaporation of refrigerant from the wick chambers, thereby cooling antifreeze, whereas hot HTF flows through the adsorber during the desorbing mode which causes condensation of refrigerant at the wick chambers, thereby heating antifreeze. In this way, the thermal-adsorption heat pump may condition cabin air independent of engine coolant and without exerting a load on the engine.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: April 7, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Yongfang Zhong, Michael Levin, Furqan Zafar Shaikh, Danrich Henry Demitroff, Donald Masch
  • Patent number: 8984905
    Abstract: A desiccant air conditioner has a high energy efficiency due to the absence of excessive heat loss due to ventilation. In order to meet this requirement, the desiccant air conditioner is equipped with a honeycomb rotor wash-coated with agents having capabilities of absorptions of humidity, carbon dioxide and nitrogen, and this honeycomb rotor is divided into at least an absorption zone and a desorption zone. The air in a room is, after being passed through the absorption zone, fed back to the room, and the air which is passed through the desorption zone is exhausted into outside of the room. In this way, carbon dioxide and nitrogen in a room, the latter quantity being corresponded to that of the consumed oxygen in the room, are exhausted into outside of the room, allowing to exhaust carbon dioxide and at the same time to keep the oxygen density to within an allowed limit without the need of excessive ventilation.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: March 24, 2015
    Assignee: Seibu Giken Co., Ltd
    Inventor: Hiroshi Okano
  • Patent number: 8950212
    Abstract: An absorption heat pump with a system for improving its efficiency under generator overfeed conditions. The absorber is bypassed to direct the rich solution directly into the generator, mixing this rich solution with liquid refrigerant.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: February 10, 2015
    Inventor: Marco Guerra
  • Patent number: 8943844
    Abstract: An air conditioning system includes a dehumidifier, a regenerator, and a refrigeration system. The dehumidifier removes water from a first airflow using a liquid desiccant. The regenerator transfers water from the dilute desiccant into a second airflow. The refrigeration system can be selectively used to provide heat to the desiccant in the regenerator to more effectively remove the water from the dilute desiccant. An external heat source can also be used to heat the desiccant in the regenerator to more effectively remove the water from the dilute desiccant. The refrigeration system and the external heat source can each be used separately to heat the desiccant, or the desiccant can be heated by both heat sources simultaneously.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: February 3, 2015
    Assignee: DuCool Ltd.
    Inventor: Dan Forkosh
  • 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: 8935931
    Abstract: This invention belongs to the area of heat pump/refrigeration technology, which provides absorption heat pump of multiterminal heating and the ways of additional adjacent high-temperature heating-side. Refrigerating fluid flows from a generator to a new absorber, and then into a new absorption-evaporator, and finally into the generator. Refrigerating fluid flows from the generator to the new absorption-evaporator, and then into the new absorber, the generator. Refrigerant vapor in the condenser flows through a new throttle, and then into the new absorption-evaporator and the new absorber. Refrigerant vapor in the evaporator flows through the new liquid refrigerant pump, and then into the new absorption-evaporator and the new absorber. The pipeline of heated medium in the new absorber is connected with the external. The invention can form new units of simple structure and high heating temperature, and reduce the temperature requirement of cooling medium or actuated-hot when it is used to refrigeration type.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: January 20, 2015
    Inventor: Huayu Li
  • Publication number: 20140373568
    Abstract: A direct venting system for a free-standing propane powered refrigerator is disclosed. The direct venting system pre-installed on the refrigerator, the system having an air intake for drawing air from outside and directing the air to a burner box for combustion of the propane gas flame that runs the refrigerator, and an exhaust outlet for venting all of the flue gases or products of combustion out of the system with the system being hermetically sealed with respect to an interior environment within which the refrigerator is installed. The fresh air is directed to a burner box by means of a specially designed air inlet adapter that includes a step-down feature that reduces the likelihood of blow-out of the gas flame. The flue gases are directed through an offset chimney structure and a three-layered exhaust outlet that reduces the formation of condensate thereby protecting the system from blow-out and corrosion.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 25, 2014
    Inventors: Tim Dean, Ryan Brooks, Mike Scott, Paul Petersen, Kyle Maynard, Steven Petersen, David Stainrod
  • Publication number: 20140366565
    Abstract: A refrigeration arrangement for transportation vehicle cabins, of the type comprising an ammonia absorption cycle which includes a heat source, a rectifier section, a condenser section, an evaporator section, an absorber section, and from which the solution passes on into an accumulator and later returns to the heat source, using a fluid as a “carrier” for the heat which is generated or absorbed by the solution undergoing the cycle in a closed circuit, allowing for an optimal recovery efficiency of the heat generated between parts of the refrigeration process to improve the refrigeration of rooms, by means of said arrangement of a closed cooling fluid circuit and a refrigeration circuit which are independent from vehicle operation.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Inventors: Rafael Antonio Colussi, Nestor Juan Vénica
  • Patent number: 8904791
    Abstract: A power generation system is provided. The system comprises a first Rankine cycle-first working fluid circulation loop comprising a heater, an expander, a heat exchanger, a recuperator, a condenser, a pump, and a first working fluid; integrated with a) a second Rankine cycle-second working fluid circulation loop comprising a heater, an expander, a condenser, a pump, and a second working fluid comprising an organic fluid; and b) an absorption chiller cycle comprising a third working fluid circulation loop comprising an evaporator, an absorber, a pump, a desorber, a condenser, and a third working fluid comprising a refrigerant. In one embodiment, the first working fluid comprises CO2. In one embodiment, the first working fluid comprises helium, air, or nitrogen.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: December 9, 2014
    Assignee: General Electric Company
    Inventors: Matthew Alexander Lehar, Sebastian Walter Freund, Thomas Johannes Frey, Gabor Ast, Pierre Sebastien Huck, Monika Muehlbauer
  • Publication number: 20140352351
    Abstract: In one embodiment, the present invention relates to the use of ionic liquids and gas refrigerants in a refrigerant composition in a temperature adjustment system, such as a refrigeration system.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 4, 2014
    Applicant: H & C Scientific Resources International, LLC
    Inventor: Yanjie Xu
  • Patent number: 8881546
    Abstract: An absorption heat pump including a generator or desorber which generates vapour from a first fluid fed to a first condenser, an evaporator provided downstream of the condenser, an outlet of the evaporator connected by a third line to an inlet of a mixer of a low pressure absorber connected to a suction side of a pump feeding solution to the generator. The generator having a poor solution outlet connected by a sixth line provided with at least one lamination valve to a poor solution inlet feeding the absorber. The second line is brought into heat exchange contact with the low pressure absorber and opens into a liquid/vapour separator feeding the evaporator via a third line, the vapour outlet of the separator opening into an intermediate pressure absorber unit.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: November 11, 2014
    Inventor: Marco Guerra
  • Publication number: 20140326006
    Abstract: The invention relates to a method for operating a cooling system, in which a cooling agent is prepared in a reservoir of an evaporator device (1) of a single- or multi-stage sorption cooling system, a fluid to be cooled is cooled by having a heat exchanger of the evaporator device (1) effect a cooling heat transfer from the fluid to be cooled to the cooling agent for cooling purposes, and the cooling heat transfer causes the cooling agent to at least partially evaporate on the heat exchanger, and the evaporated cooling agent is relayed to a liquefier device (2), wherein the cooling heat transfer is improved by conveying external thermal energy provided by an external heat source (10) to the cooling agent, specifically in addition to and separately from the cooling heat transfer, and thereby initiating bubble formation that supports cooling heat transfer in the cooling agent in the reservoir, specifically by inducing bubble formation in conjunction with supplying the external thermal energy or intensifying bub
    Type: Application
    Filed: September 4, 2012
    Publication date: November 6, 2014
    Inventors: Stefan Petersen, Walther Hüls Güido
  • Patent number: 8863538
    Abstract: A method of treating a contaminated refrigeration fluid including the steps of transferring, separating, returning, moving and removing. The transferring step includes the transferring of a portion of the contaminated refrigeration fluid from a refrigeration system to a first tank. The separating step includes the separating of refrigerant from the portion of the contaminated refrigeration fluid resulting in the refrigerant and a refrigerant depleted portion. The returning step includes the returning of the refrigerant to the refrigeration system. The moving step includes the moving of the refrigerant depleted portion to a second tank. The removing step includes the removing of oil from the refrigerant depleted portion.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: October 21, 2014
    Assignee: Wagner-Meinert LLC
    Inventors: Lawrence F. Hildebrand, Wayne Douglas Zollinger
  • Publication number: 20140290306
    Abstract: The invention relates to an absorption refrigeration machine (10) that includes an evaporator (12) and an absorber (18) and is characterized in that the evaporator (12) comprises at least one evaporating unit (12?) having a coolant channel (26), through which the coolant (16) flows and which is delimited at least in part by a heat-conducting, vapor- and liquid-tight wall (24), and having at least one refrigerant channel (28) that adjoins the heat-conducting wall (24), is loaded with the refrigerant (14), and is separated from a vapor chamber (32) by a vapor-permeable, liquid-tight membrane wall (30) on the side of the refrigerant channel opposite the heat-conducting wall (24), and in that the absorber (18) comprises an absorption unit (18?) having a cooling-medium channel, through which a cooling medium (34) flows and which is delimited at least in part by a heat-conducting, vapor- and liquid-tight wall (36), and having an absorption channel (40) which adjoins the heat-conducting wall and to which the concent
    Type: Application
    Filed: August 8, 2012
    Publication date: October 2, 2014
    Inventor: Wolfgang Heinzl
  • Publication number: 20140290305
    Abstract: The invention relates to a single-stage ammonia-water absorption refrigeration machine in a batch process without solution pump and without rectification, consisting of a generator (1) with pressure reducer (29) and solution concentration optimization (3), absorber (14), condenser (25), evaporator (24), wherein the generator (1) together with a back-cooled input vessel (3) and the pressure reducer form a structural and pressure unit, in which the pressure reducer (29), at the start of each operating cycle, reduces the generator pressure below the absorber pressure, in such a way that from there via a check valve (69) solution flows in the back-cooled generator input vessel (3), fills it, and from there the solution gradually flows, following gravity, into a hot zone (1), which advantageously but not necessarily consists of a preheating zone (11) that is heated by the absorber (18) and an externally heated hot zone (12), where ammonia vapor is formed, which is directed by a siphon duct (8) from below through t
    Type: Application
    Filed: March 16, 2012
    Publication date: October 2, 2014
    Inventor: Gerhard Kunze
  • Publication number: 20140283545
    Abstract: There is provided a water vapor adsorbent for adsorption heat pumps that has high adsorption and desorption performance and high water resistance, such as submersion resistance. The water vapor adsorbent contains a zeolite that contains at least a silicon atom, an aluminum atom, and a phosphorus atom in its framework structure and that has a framework density of 12.0 T/1,000 cubic angstroms or more and 16.0 T/1,000 cubic angstroms or less, wherein the water vapor adsorbent contains a group 11 metal of the periodic table, which constitutes 0.1% to 15% by weight of the zeolite. In the zeolite containing the group 11 metal, an ion of the group 11 metal substitutes for a Bronsted acid site, which promotes a hydrolysis reaction of the zeolite, and decreases the number of Bronsted acid sites of the zeolite, thereby improving the water resistance, such as submersion resistance, of the zeolite.
    Type: Application
    Filed: October 1, 2012
    Publication date: September 25, 2014
    Inventors: Haijun Chen, Takahiko Takewaki
  • Publication number: 20140283544
    Abstract: A heat exchange reactor includes: a first flow path through which a heat exchange fluid flows; a second flow path through which a working fluid flows; and an adsorbent shaped body that is disposed in the second flow path, the adsorbent shaped body having a heat transfer face at which heat is exchanged with the heat exchange fluid flowing in the first flow path, and plural recessed portions arrayed in two dimensions at predetermined spacings along a direction in which the working fluid flows such that the working fluid flows into the plurality of recessed portions, the adsorbent shaped body including an adsorbent and a fibrous thermally conductive material, the adsorbent releasing heat when the working fluid is adsorbed and accumulating heat when the working fluid is desorbed, and the fibrous thermally conductive material being disposed such that an axial direction thereof is oriented in a direction that intersects with the heat transfer face.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 25, 2014
    Inventors: Yasuki HIROTA, Takafumi YAMAUCHI, Takashi SHIMAZU
  • Patent number: 8839642
    Abstract: A chemical heat pump includes a reactor part (1) that contains an active substance and an evaporator/condenser part (3) that contains that portion of volatile liquid that exists in a condensed state and can be absorbed by the active substance. A channel (4) interconnects the reactor part and the evaporator/condenser part. To heat the reactor part, a portion of this wall is arranged as a solar energy collector, which can result in a very compact structure. In at least the reactor part a matrix (13) is provided for the active substance so that the active substance both in its solid state and its liquid state or its solution phase is held or carried by or bonded to the matrix. The matrix is advantageously an inert material such as aluminium oxide and has pores, which are permeable for the volatile liquid and in which the active substance is located. In particular, a material can be used that has a surface or surfaces, at which the active substance can be bonded in its liquid state thereof.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: September 23, 2014
    Assignee: Climatewell AB
    Inventors: Goran Bolin, Ray Olsson
  • Publication number: 20140245768
    Abstract: A co-fired generator for use in a continuous-cycle absorption heating and cooling system may provide heat to the interior of an annulus chamber from a first heat exchanger, such as a firetube heat exchanger, supplemented by heat to the exterior of the annulus chamber from a second heat exchanger containing fluid heated by an external source. Some embodiments may circulate fluid heated in a solar-heated collector through the second heat exchanger. Other embodiments may route exhaust gas from a combustion engine through the second heat exchanger. The second heat exchanger may be provided with a plurality of fins to increase the surface area available for thermal transfer between the heated fluid and the annulus chamber.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Applicant: ROCKY RESEARCH
    Inventors: Uwe Rockenfeller, Paul Sarkisian
  • Patent number: 8820113
    Abstract: To reduce power consumption and more efficiently cool computing devices in a data center, an air supply unit supplies air from outside the data center to an air handling unit, which cools servers within the data center using the supplied air. Using air from outside the data center, rather than recirculating and cooling air from within the data center, reduces the power consumption of the data center. In an embodiment, a chiller and/or an evaporative cooling system are coupled to the air supply unit to allow further cooling of the outside air before it is circulated. Heat generated by the servers within the data center is collected, for example using thermal pathways coupled to server components, and used by the chiller in an absorption or adsorption process to further reduce power consumption of the data center and allow the air handling unit to further cool the outside air.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: September 2, 2014
    Assignee: Facebook, Inc.
    Inventors: Ali Heydari, Marco Magarelli
  • Publication number: 20140238071
    Abstract: Adsorption heat exchanger devices (11, 25) are provided for use in solid sorption refrigeration systems (1) together with methods for making such devices and adsorbent structures therefor. The methods include applying a curable binder, in solution in a solvent, to granular adsorbent material, and then evaporating the solvent and curing the binder. The curable binder solution is sufficiently dilute that, during evaporation of the solvent, the binder becomes concentrated around contact points between granules (18) of the adsorbent material whereby localized bonds (19) are formed around the contact points on curing of the binder.
    Type: Application
    Filed: June 8, 2012
    Publication date: August 28, 2014
    Inventors: Thomas J. Brunschwiler, Javier V. Goicochea, Bruno Michel, Patrick Ruch
  • Publication number: 20140238072
    Abstract: An exchanger for absorption or desorption of a refrigerant employs an ultra thin film (UTF) of a refrigerant solution constrained to a channel by a permeable membrane. The UTF has a thickness of about 250 ?m or less. The permeable membrane can be a nanostructured membrane, such as a membrane of nanofibers. The exchangers can be employed in an absorption refrigeration system (ARS) that use waste heat or solar heaters permitting the ARS to be less than one tenth the volume and mass of a conventional ARS.
    Type: Application
    Filed: October 25, 2012
    Publication date: August 28, 2014
    Inventor: Saeed Moghaddam
  • Publication number: 20140237988
    Abstract: One exemplary embodiment of this invention provides a single-effect absorption chiller including an absorber operatively connected to a solution heat exchanger and a generator, and a condenser in fluid communication with the absorber, wherein the absorber is sized and configured to receive a feed of water from a source of water and to transfer heat to the feed of water and then to convey the feed of water to the condenser without further heat conditioning of the feed of water prior to its entry into the condenser, and wherein the condenser is sized and configured to receive the feed of water from the absorber and to transfer heat to the feed of water, thereby cooling the condenser without resorting to an external heat exchanger such as a conventional cooling tower.
    Type: Application
    Filed: May 1, 2014
    Publication date: August 28, 2014
    Applicant: University of New Orleans Research and Technology Foundation, Inc.
    Inventor: Ting Wang
  • Publication number: 20140230485
    Abstract: A cooling apparatus for electric equipment includes a generator configured to receive a heat load from first electric components, a evaporator configured to receive a heat load from second electric components, a closed compartment enclosing the generator and evaporator, and a absorber transferring heat from heated fluid to the outside of the closed compartment. To obtain an efficient and reliable cooling apparatus, the cooling apparatus includes a first expansion device which reduces the pressure of the fluid, and forwards the fluid in a liquid state and with a lower pressure to the secondary cooling element, which transfers heat to the received fluid from the second electric components for evaporating the fluid.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 21, 2014
    Applicant: ABB Research Ltd
    Inventors: Bruno Agostini, Francesco Agostini, Heikki Elomaa, Jari Sundelin, Mathieu Habert
  • Publication number: 20140223955
    Abstract: The invention relates to a module for a heat pump, comprising an adsorption-desorption region, wherein in the region a bundle of pipes through which fluid can flow is arranged and a housing encloses the pipe bundle and a movable working medium in a sealing manner, wherein a supporting structure forms a mechanical support of a wall of the housing against the action of an external pressure.
    Type: Application
    Filed: July 19, 2012
    Publication date: August 14, 2014
    Applicants: MAHLE INTERNATIONAL GmbH, BEHR GmbH & Co. KG
    Inventors: Thomas Schiehlen, Steffen Thiele, Thomas Wolff, Eberhard Zwittig, Hans-Heinrich Angermann, Roland Burk, Holger Schroth, Stefan Felber, Steffen Brunner