Abstract: A secondary loop refrigeration system includes plural refrigeration zones serially connected in a secondary cooling loop using a R-134a as a liquid refrigerant in increasing order of operating temperatures, the secondary cooling loop being in heat exchange relationship with a primary cooling loop using direct expansion refrigerants. The primary cooling loop may be selectively isolated allowing the latent heat of the units in the zones to increase the circulating temperature of the secondary refrigerant sufficient to defrost the cooling coils.

Abstract: A two-stage refrigeration system includes an intermediate slurry tank for receiving and storing a refrigerant vapor and a slurry of solid sublimatable refrigerant particles in a liquid. The intermediate slurry tank has a first outlet for outflow of the slurry from the tank, a second outlet for outflow of the refrigerant vapor, a first inlet for receiving at least the liquid, and a second inlet for receiving the refrigerant. The refrigeration system also includes a compression system having a first low pressure inlet and second intermediate pressure inlet, and having a high pressure outlet. A conduit connects the second outlet of the intermediate slurry tank to the intermediate pressure inlet of the compression system so as to compress the vapor with less energy than would be needed to compress low pressure refrigerant vapor.

Abstract: The invention provides a system for the dehumidification of air in a space inside an enclosure, the system including at least one air/brine heat exchanger unit for heating cold fresh air introduced into the heat exchanger from the outside and for dehumidifying the air within the enclosure by vapor condensation; and a brine regenerator in brine communication with the air/brine heat exchanger.

Abstract: A modular air conditioning system comprises a self-contained refrigeration power cell and a remotely located heat exchanger coupled by a low-pressure refrigerant circuit. The refrigeration power cell comprises a compressor, a condenser, an expansion device, and an evaporator, which are serially coupled to form a high-pressure closed refrigeration circuit. The low-pressure circuit thermally interfaces with the condenser to remove heat from the high-pressure circuit. This heat exchanger is adapted to mount in proximity to or be integrated with the radiator. Alternatively, this circuit thermally interfaces with the evaporator to remove heat from the low-pressure refrigerant. This heat exchanger is adapted to mount in the cabin of the vehicle. When the low-pressure circuit thermally interfaces with the evaporator, the low-pressure circuit may further include a cool box for storing items to be refrigerated. Preferably, the cool box and heat exchanger may each be operated either alone, or in combination.

Abstract: A rack system for mounting electronic devices such as computers or telecommunication devices is disclosed. The rack includes an integrated liquid heat exchange cooling system for dissipating the heat generated by the electronic devices. The rack also includes integrated alternating current and direct current power supplies for supplying power to the electronic devices. The entire system is of modular construction, providing both scalability and redundancy.

Abstract: The present invention divides the traditional fill-loop heat pump compression (heating) and expansion (refrigeration) process into two separate half-loop processes. The two (half-loop) processes occur separately and are separated by physical distance and/or by time. The two processes are connected by either physical storage means and/or by pipeline means such that low pressure refrigerant and high pressure refrigerant are stored between cycles and/or transported between cycles. In operation, a refrigerant is compressed to provide heat to a location, the compressed refrigerant is then stored/transported to where/when a cooling process is needed whereupon the refrigerant is expanded to provide refrigeration, the expanded refrigerant is then stored/transported to where/when a heating process is needed.

Abstract: In a marine vessel (such as a yacht or other boat) in the range of 45-75 feet a chilled water air conditioning system is provided having a significant advantage over split central systems. Utilizing two-four water chilling modular units the chilled water capacity only needs to accommodate about 75-90% of the calculated BTU heat load for the vessel, while the air handlers are rated at about 100% of the calculated BTU heat load. Each modular unit has no refrigerant connection exterior of the casing containing all of its components, including a condenser coil, evaporator coil, compressor, reversing valve, and expansion tubing, all operatively connected to each other by refrigerant lines within the casing. Chilled water is circulated into and out of the evaporator coil by an exterior pump and expansion tank operatively connected to each of the modular units, the chilled water passing through a coil unit of an air handler.

Abstract: The present invention comprises a modular unit in which all of the components necessary for conditioning the intake air for a combustion gas turbine are contained. The compressors, evaporators condensers and related pumps and control equipment are contained within a weather proof enclosure having sound insulation installed in the walls. The intake air conditioning system includes three loops, a compressed refrigerant loop, a chilled water loop and a condenser cooling water loop with an optional heating loop. The modular unit provides a three loop cooling system for easy connection to both a combustion gas turbine air inlet and to a cooling water tower. The loops comprise a refrigerant loop, a cooling water loop and a chilled water loop and in one embodiment a heating loop to heat the air going to the turbine.

Abstract: It is intended to provide a dynamic type ice cold storage method and system capable of efficiently suppressing, by an appropriate replenishment of water, an increase in concentration of an aqueous solution with the progress of freezing of the aqueous solution, thereby preventing a lowering in the coefficient of performance of a refrigerator, and hence diminishing power required for the formation of ice crystals. The temperature of an aqueous solution contained in a freezer which includes a heat exchanger for cooling is measured with a thermometer, and as the liquid temperature drops with the progress of freezing, melted water is replenished into the freezer from a melted water tank by means of a pump to keep almost constant the temperature of freezing performed by the heat exchanger for cooling.

Abstract: A cooling installation for a machine tool or the like, having a circulation system in which coolant circulates, wherein the coolant is conducted to a tempering device of the machine tool, wherein a metering unit is assigned to the circulation system, by which an external coolant can be metered to the coolant circulating in the circulation system, and wherein the metering unit can be controlled by a control device. In order to set the best possible constant temperature level at the tempering device, the circulation system has a buffer tank through which the coolant is conducted, and the metering unit meters the external coolant into the return flow coming from the tempering device and into the circulation system upstream of the buffer tank.

Abstract: The present invention discloses a self-contained recirculating refrigeration system wherein the refrigerant is referred to as HTF (heat transfer fluid) which is cooled using liquid nitrogen. HTF remains in the liquid phase throughout the process of the present invention 10. The basic process can be viewed as beginning with the injection of liquid nitrogen (LN2) from a liquid nitrogen supply tank 22 into the thermal converter 18 wherein the heat transfer fluid (HTF) is cooled by LN2 through one or more heat exchangers to let the LN2 absorb heat from the HTF and thereby cool the HTF to refrigeration temperatures. The rate at which LN2 enters the thermal convector 18 is controlled by a valve so as to maintain the temperature of the HTF at a set point.

Abstract: The object of the invention is to provide an ice-making machine having an eccentric driving means and features of reduced wear and tear due to the movement of rotating rods, the machine being composed so that a plurality of heat transfer pipes 3 and rotating rods 4 which rotate inside the heat transfer pipes 3 are disposed in a shell 2, liquid to be cooled is supplied to the inside and refrigerant to the outside of the heat transfer pipes 3 respectively, the liquid to be cooled is cooled so as to form ice crystal on the inside surfaces of the heat transfer pipes 3, the ice is scraped by the rotating rods 4 and taken out as ice grains together with the liquid to be cooled, the rotating rods 4 being passed through the holes 5a provided on a driving plate 5 which is connected with a driving shaft 13 by the medium of a eccentric drive means 13a or 17 to be revolved to the effect that the rods 4 are revolved by the revolving of the driving plate 5 while rotating in the holes 5a.

Abstract: A device for air temperature control in a vehicle has a unit forming a first circuit for circulation of an coolant, a unit forming a second circuit for circulation of a refrigerant, a unit for connecting the first circuit with an engine for heating the coolant, a unit for providing a heat exchange between the second circuit and the first circuit for cooling the coolant, a single air temperature regulating element, and a unit for alternatively connecting the first a unit to the air temperature regulating element so that when the coolant is heated from the engine and supplied through the first a unit the air temperature regulating element heats air in the vehicle, or connecting the second a unit with the common air temperature regulating element so that when the coolant in the first circuit is cooled by heat exchange with the refrigerant of the second circuit and the cooled coolant is supplied to the air temperature regulating element to cool air in the vehicle, and a heat exchanger which provides a heat exchan

Abstract: A highly efficient and compact ammonia refrigerator, whose safety is further improved, is obtained. The ammonia refrigerator uses ammonia as refrigerant and has an ammonia refrigerating cycle in which a compressor, a condenser, an expansion valve, and an evaporator are connected through piping. The refrigerator comprises a casing in which the compressor and a motor for driving the compressor are accommodated and the refrigerant flows, a stator winding of the motor made of an aluminum wire, and a brine cooled by the refrigerant which is compressed in the casing and then evaporated in the evaporator.

Abstract: A thermal transportation method utilizes polyvinyl alcohol which is added to a liquid, and the liquid is cooled to form an ice slurry that is pumped through a pipe to effect the thermal transportation.

Abstract: The invention concerns an assembly wherein a tank connects a return orifice to a delivery conduit via pumps. The tank is further connected to a surge tank. The tank is mounted in a steam proof chamber heat-insulated inside but having an air gap separation around the tank. Components are mounted sealed through the chamber. A filter subdivides the tank into a lower return chamber and a higher starting chamber.

Abstract: A cold-insulation container is disclosed which includes a cold-insulation container main body (1) which is a heat-insulation structure and a door (2) for opening and closing an opening portion (4) of the cold-insulation container main body (1). Provided in the cold-insulation container main body (1) are a refrigerating apparatus (19) and a cold-storage device (20) which is cooled by the refrigerating apparatus (19) and stores cold. An external wall of the cold-insulation container main body (1) and the door 2 are formed from a synthetic resin material.

Abstract: A device for air conditioning of a motor vehicle interior, with a refrigerant circuit which has a compressor (21), a condenser (22) and at least one evaporator (30), with a heat exchange medium circuit which has at least one heat source (engine 10, auxiliary vehicle heater 14) and at least one heat exchanger (12, 17). To simplify the system and to accelerate the response behavior when heating and cooling, it is provided that there an evaporator (30) of the refrigerant circuit and a heat exchanger (17) of the heat exchange medium circuit are both located in a reservoir (33) which is suited for selective storage of both heat and cold.

Abstract: A cryogenic refrigeration system wherein refrigeration is provided to a heat load by a warming multicomponent refrigerant fluid recirculating in a refrigeration circuit and by cryogenic liquid separately provided to the heat load in direct or indirect heat exchange with the heat load.

Abstract: A system for providing refrigeration to a heat load, especially over a larger temperature range and at a cryogenic temperature, wherein pulse tube refrigeration cools a heat transfer medium to provide higher level refrigeration to a refrigeration fluid, and lower level refrigeration is provided to the refrigeration fluid using a non-pulse tube system.

Abstract: A check valve 27 for preventing backflow of a coolant 5 in outside pipes 14a and 14b into a tank 10 when operation is stopped, a cubical expansion relief valve 28 for suppressing increase of pressure of the coolant in the outside pipes 14a and 14b, and a purge check valve 29 for blowing compressed gas into the outside pipes 14a and 14b to recover the coolant are connected to a primary-side flow path for sending the coolant 5 to a heat load 1, a flow rate control valve 31 for controlling a flow rate or pressure of the coolant is connected to a secondary-side flow path for receiving the coolant 5 from the heat load 1, a bypass flow path 35 is provided between the primary-side flow path and the secondary-side flow path, and a bypass flow rate control valve 36 which opens when the pressure of the coolant in the outside pipes 14a and 14b exceeds prescribed pressure is connected in the bypass flow path 35.

Abstract: A storage system comprises: a heat-insulating outer shell (1) capable of insulating inner space (V); an ice storage water tank (4) capable of storing water therein disposed in an ice storage water tank disposing space (5) provided in the inner space (V) of the heat-insulating outer shell (1); a storage space (3) for storing objects (2) to be stored provided in the inner space (V) of the heat-insulating outer shell (1); an outside-air inlet opening (1a) provided at a lower portion of the heat-insulating outer shell (1), the inlet opening being capable of introducing outside air into the inner space (V); an inside-air outlet opening (1b) provided at an upper portion of the heat-insulating outer shell (1), the outlet opening being capable of discharging inside air from the inner space (V) of the heat-insulating outer shell (1) to the outside; and an object entrance-exit opening (7) provided at an upper portion of the heat-insulating outer shell (1) for allowing entrance-exit of the objects (2) to and from the st

Abstract: A brine cooling apparatus is provided which addresses an environmental problem by not contributing to global warming and can prevent brine from freezing within a heat exchanger. The apparatus is structured such that a screw compressor, a condenser, a main expansion valve and an evaporator are connected by a pipe so as to cool brine flowing through the evaporator. The refrigerant is an ammonia refrigerant, the evaporator is a plate type heat exchanger constructed by laying a plural sheets of plates, and capacity control means is provided in such a manner as to control a capacity of the screw compressor in accordance with the flow amount of the brine.

Abstract: A closed loop cooling system for cooling machines, comprising a first heat exchanger having a refrigerant on a first side and a coolant on a second side and a coolant loop that circulates the coolant through the system; the coolant loop has a coolant supply header for circulating coolant flowing from the heat exchanger; a plurality of individual machine cooling loops connected to the coolant supply header, each machine cooling loop passing through at least one heat exchanger for cooling two or more fluids employed in an individual machine, and where each machine cooling loop has a flow meter and a regulating valve for adjustment of the coolant flow through the loop; and a coolant return header connected to the machine coolant loops for returning the coolant from the individual machine cooling loops to the first heat exchanger.

Abstract: A climate control system includes an electromagnetic compressor that receives a noble gas in a first state and compresses the gas to a second state without a change in phase. The climate control system also includes a gas cooler operatively connected to the electromagnetic compressor, such that the gas cooler receives the gas in the second state and cools the gas to a third state without a change of phase. The climate control system further includes a power generator operatively connected to said gas cooler, such that the power generator receives the gas in the third state and decreases a pressure and an enthalpy of the gas without changing phase to a fourth state. The climate control system still further includes a cooler core operatively connected to the power generator, such that the cooler core receives the gas in the fourth state and air to be cooled, and operatively extracts heat from the air and returns the gas without changing phase to the first state.

Abstract: The invention relates to an air-conditioner having a heat exchanger, such as an evaporator, for example, with a reservoir for a cold storage medium.

Abstract: Apparatus for cooling a conventional oil filled electrical transformer by using a conventional refrigeration unit. The transformer liquid coolant may be either circulated through a remotely located heat exchanger cooled by an electrical refrigeration unit, or the heat exchanger may be directly located within the transformer's housing and within its liquid coolant.

Abstract: A method and apparatus for providing direct contact refrigeration to a heat source wherein refrigeration is generated using a recirculating defined multicomponent refrigerant fluid, and transferred to a direct contact refrigerant fluid which directly contacts the heat source.

Abstract: The present invention includes a method and apparatus for making a hydrate slurry, which prepare an aqueous solution of a guest compound for forming a clathrate hydrate, cool the aqueous solution, and contact a nuclear particles; furthermore, a thermal storage method, a thermal storage apparatus, and a thermal storage medium by using an aqueous solution of clathrate hydrate, whose concentration is a congruent melting point or lower; furthermore, an refrigerating apparatus and an air conditioner for using the thermal storage method, the thermal storage apparatus and the thermal storage medium.

Abstract: A heating apparatus having a refrigeration cycle includes a compressor, a condenser and an evaporator. The heating apparatus has a first heat exchanger and a second heat exchanger, where the first heat exchanger is selected as a heat source, and the second heat exchanger is selected as either a cooling or heating source. The first heat exchanger and the second heat exchanger are connected in series with each other in a refrigerant circuit. A heating medium is circulated in a heat transfer device which is connected to the first heat exchanger. Bathwater of a bathtub and water of a hot-water storage tank are heated through the heat transfer device indirectly by the first heat exchanger.

Abstract: A vehicle climate control system having a separate control for first and second separate areas of the vehicle. The climate control system includes a three-fluid heat exchanger having a first path with a first inlet and first outlet, and a second path with a second inlet and second outlet. The first path communicates refrigerant between the first inlet and first outlet and the second path communicates coolant between the second inlet and second outlet without the refrigerant and the coolant being mixed. A primary refrigerant loop is interconnected by a refrigerant line with the refrigerant line being connected to the inlet and outlet of the first path. A secondary loop is connected to the inlet and the outlet of the second path such that the coolant flows through the three-fluid heat exchanger to selectively cool or heat the second area of the vehicle by heat transfer within the three-fluid heat exchanger.

Abstract: An equalizing tank is disclosed comprising a housing, a pressure dissipation orifice, and a return flow line configured to provide fluid communication within the housing without fluid entering the pressure dissipation orifice. Also disclosed is a method of making the equalizing tank and an automotive air-conditioning system including the equalizing tank.

Abstract: A thermal energy storage unit is provided in connection with an air conditioning or refrigeration condenser. Working fluid waste heat is stored in the thermal energy storage unit during at least a relatively hot part of the day. Heat stored in the thermal energy storage unit is then rejected to the air during a cooler period, such as night. By rejecting the stored heat directly to the atmosphere, there is no need to provide an energy-consumptive refrigeration cycle for cooling the thermal storage medium material. In this way, a refrigeration system compressor has a reduced load and/or reduced duty cycle during hot parts of the day and relatively less energy can be used during high-demand times when energy may be more expensive.

Abstract: The invention relates to a device for cooling a vehicle interior with a secondary circuit (26) for transferring the cold produced in an evaporator (24) of a primary refrigerating circuit (14) of a refrigerating unit (12) by means of a refrigerating medium to at least one heat transfer device (34) for cooling the air to be fed into the vehicle interior, the secondary circuit (26) having a main circuit (36) and an auxiliary circuit (40) containing the heat transfer device (34), which are coupled by a four-way valve (56), by means of which an adjustable proportion of the flow of refrigerating medium can be diverted from the main circuit (36) and fed into the auxiliary circuit (40). In order to provide an improved device for cooling, in particular one that can be produced at a more reasonable cost, it is proposed that an inner heat exchanger (80) should be provided in the auxiliary circuit (40), allowing heat exchange to take place between a feed (60) and a return (62).

Abstract: A thermosiphon is provided of low cost and simple construction and having a condenser which can reliably discharge a condensed working fluid from an outlet pipe even if the apparatus is somewhat inclined. A thermosiphon 1 comprises a condenser 2 connected to a cold part B of a refrigeration apparatus A, and a capillary 3a and a large diameter pipe 3b connected to the condenser 2 and which can pass a working fluid thereinside. The condenser 2 comprises; an attachment part 4 attached to the cold part B for conducting cold from the cold part B, and a condensing part 5 provided at an end of the attachment part 4 for condensing the working fluid. The condensing part 5 has a cavity portion 6 thereinside, and an inside bottom part 6a of the cavity portion 6 is formed descending towards an outlet hole 12 communicating with the capillary 3a for the working fluid.

Abstract: There is disclosed novel apparatus for use as beverage container vending machines, beverage dispensers, transportable beverage container dispensers and glass door merchandizers, all cooled by Stirling coolers. The apparatus includes an insulated enclosure and a Stirling cooler having a cold portion. A plate or coil made from a heat-conducting material disposed within the insulated enclosure is connected in heat exchange relationship with the cold portion of the Stirling cooler. Heat transfer fluids, heat pipes and direct contact are different methods used to transfer heat from the plate to the cold portion of the Stirling cooler. The cooled plate or coil is used to cool a container or a fluid that is, in turn, used to cool either a container or a fluid. Methods of chilling containers and fluids are also disclosed.

Abstract: The present invention is directed to method and apparatuses for modifying the air of a localized zone to suit personal comfort. This invention includes the heating or cooling of the air in the localized zone with a novel apparatus and inhibiting the concurrent release of byproduct air at undesirable temperatures while using a heat pump. The apparatus includes a thermal storage mass that provides a reservoir for the undesirable heating or cooling effects for later restoration. This restoration would occur at a predetermined time in predetermined amounts, typically when the localized zone is unoccupied.

Abstract: A process and apparatus for effecting the recovery of grease and oils from an aqueous waste stream is disclosed. This is accomplished by a combination of steps which include removing coarse food solids from the waste stream, allowing the oils to separate from the water in a separation zone, removing the oil layer to a storage zone, removing the water layer to a heat recovery zone and transferring heat values from the recovery zone to the separation zone with vapor compression refrigeration. The invention saves energy by recycling the heat of the kitchen waste stream to the separation zone. The recovered oil is useful as a marketable product that can be converted into many useful products. When a fines filter is used in the process, the discharged water can be used for non-agricultural uses such as lawn watering or can be used in water closets and urinals.

Abstract: A low-cost and thermodynamically efficient implementation of a two-stage refrigeration system applied to a retail refrigerator. The invention includes a simple and easily manufactured thermally efficient and low-cost evaporation unit. The invention further includes a thermal energy storage module and an energy efficient control protocol to maintain steady temperatures in the fresh and frozen food sections, to permit energy efficient defrosting of the heat exchange surfaces in the freezer section, and minimize losses associated with condensing unit on-and-off cycling.

Abstract: A trim cooler for cooling a drink in a drinks line, the trim cooler comprising a refrigerator comprising an evaporator, a condenser and a compressor for circulating a cooling medium therebetween to cool the evaporator; the evaporator being in thermal contact with the drinks line; a coolant line in thermal contact with the condenser; and, a coolant source connected to the coolant line and adapted to supply a liquid coolant to the coolant line.

Abstract: A cold accumulating material comprising a number of magnetic particles mainly composed of oxide, wherein an average value of equivalent circle diameters of crystal grains constituting the magnetic particles is 0.3-20 &mgr;m. It is preferable that an area ratio of the crystal grains each having an equivalent circle diameter of 50 &mgr;m or more is 10% or less with respect to whole crystal grains constituting the magnetic particle. According to the above structure, there can be provided a cold accumulating material which is free from being finely pulverized, and is excellent in thermal shock resistance and durability, and capable of exhibiting a significant refrigerating performance at low temperature range for a long period of time in a stable condition.

Abstract: A highly efficient and compact ammonia refrigerator, whose safety is further improved, is obtained. The ammonia refrigerator uses ammonia as refrigerant and has an ammonia refrigerating cycle in which a compressor, a condenser, an expansion valve, and an evaporator are connected through piping. The refrigerator comprises a casing in which the compressor and a motor for driving the compressor are accommodated and the refrigerant flows, a stator winding of the motor made of an aluminum wire, and a brine cooled by the refrigerant which is compressed in the casing and then evaporated in the evaporator.

Abstract: Efficient apparatus and methods are disclosed for interfacing active thermal stores, or cooling loops, to a secondary water loop for decreasing the temperature of an airflow by providing a continuously regenerating water loop that directs chilled water onto a thermally conductive heat exchanger, said loop further comprising supplying water for the loop by collecting water from the heat exchanger.

Abstract: To provide a temperature adjustment apparatus that can reduce the amount of evaporation of a medium without using a closed type container. A temperature adjustment apparatus 24 is composed of a container 26 that contains PFC 42 for heat exchange, a circulation path 28 of the PFC 42 that passes through an electrode 20 of a plasma processing apparatus 10, and a pump 30. A liquid layer 40 that separates from the PFC 42 is formed in an upper layer of the PFC 42 that is contained in the container 26. As a result, the PFC 42 does not directly contact the atmosphere and therefore the amount of evaporation of the PFC 42 into the atmosphere is substantially reduced.

Abstract: There is disclosed novel apparatus for use as beverage container vending machines, beverage dispensers, transportable beverage container dispensers and glass door merchandizers, all cooled by Stirling coolers. The apparatus includes an insulated enclosure and a Stirling cooler having a cold portion. A plate or coil made from a heat-conducting material disposed within the insulated enclosure is connected in heat exchange relationship with the cold portion of the Stirling cooler. Heat transfer fluids, heat pipes and direct contact are different methods used to transfer heat from the plate to the cold portion of the Stirling cooler. The cooled plate or coil is used to cool a container or a fluid that is, in turn, used to cool either a container or a fluid. Methods of chilling containers and fluids are also disclosed.

Abstract: A gas-injection type refrigeration-cycle device has heat exchanger where refrigerant extracts waste heat from heating devices. In the refrigeration-cycle device, the mode is changed between where lower-pressure refrigerant extracts heat and where intermediate-pressure refrigerant extracts the heat of the hot water. The lower-pressure refrigerant is drawn into compressor, after heat exchanger is set at the lower-pressure side of the refrigeration cycle. The intermediate-pressure refrigerant is introduced into compressor-gas-injection port, after heat exchanger is set at the intermediate-pressure side of the refrigeration cycle. In another aspect, a defrosting mode of outdoor heat exchanger includes a heating mode, and gas refrigerant discharged from compressor flows through condenser without heat exchange. Thereafter, the flow of the gas refrigerant is divided to two portions, and the gas refrigerant of one portion flows into outdoor heat exchanger, thereby defrosting outdoor heat exchanger.

Abstract: The device of the invention comprises a closed circuit (10) in which a refrigerant fluid circulates between an evaporator (12) and a condenser (14) which are respectively in thermal contact with a cold-liquid duct (22) and a hot-liquid duct (24). Changeover-switching means (34, 36) put these two ducts into communication either with a first loop (26) travelled by a liquid and containing a heat exchanger (28) capable of being swept by an airflow (F1), or with a second loop (38) travelled by a liquid and comprising a heat exchanger (42) suitable for being swept by an airflow (F2) to be sent into the passenger compartment (H) . The heat exchanger (42) of the second loop (38) can thus heat up or cool the airflow (F2).

Abstract: A cooling apparatus is disclosed which includes a housing and a plurality of chambers which are arranged therein, sealed tightly and filled with a storage medium. The chambers have a substantially flat cross section and are arranged in at least one group. Passages extend between the chambers. The chambers of a group are combined to form a block, and at least one passage is provided between each pair of adjacent chambers. Each of the passages is connected to distribution and collection chambers formed in the housing, in the area of the distribution and collection chambers, with at least one feed port and a return port.

Abstract: A low temperature waste crushing system including a low temperature freezing section for cooling waste material below the cold shortness transition temperature by receiving a supply of refrigeration from a heat sink, and a crushing section for crushing the material cooled in the low temperature freezing section by taking advantage of cold shortness. The low temperature freezing section is configured in dual steps, the preceding step being supplied with the higher temperature refrigeration of the first refrigerating cycle and the succeeding step being supplied with the lower temperature refrigeration of the second refrigerating cycle.

Abstract: An uninterrupted sub-loop water cooling system for supplying cooling water to a process machine during a short-term power interruption and a method for utilizing such system are disclosed. In the system, a buffer tank is provided for storing a quantity of cooling water maintained at a temperature of about 15° C. The buffer tank is provided with conduits for fluid communication with a process machine and at least one pump means operable by an uninterrupted power system such as a battery back-up system for pumping cooling water from the buffer tank to the process machine and then return to the buffer tank forming a sub-loop when a power shortage has occurred. The present invention system is effective in bridging a time gap between the occurrence of a power outage and the start of an emergency power generating system which amounts to between about 30 seconds and about 2 minutes such that cooling water supply to a process machine is not interrupted.