Abstract: An apparatus for cooling a condenser of an air conditioner comprises a support member, a tube arranged around a condenser of an air conditioner, a spray comprising an inlet coupled with the tube and an outlet arranged so as to spray water onto the condenser, an air deflector being arranged adjacent the condenser, a sun shade being coupled with the support member and arranged above the condenser; and a sail switch comprising a sail disposed in the air deflector so as to detect an air flow exhausted from the condenser, a switch lever coupled with the switch and extending into the air deflector and a switch placed adjacent the air deflector. The tube is coupled with a water supply. The switch controls water supplied to the tube from the water supply according to an orientation of the sail. The apparatus further comprises a screen or drape around the condenser.

Abstract: An exhaust gas heat exchanger system of a combustion engine has a bypass duct and a heat exchanger duct with a heat exchanger. A valve is controlled by determining when heat is to be transferred from exhaust gas flowing through the exhaust system to the heat exchanger. When heat is to be transferred, the valve is switched into a first position in which all of the exhaust gas flows through the heat exchanger duct. A pressure drop across the heat exchanger system is monitored either directly or indirectly. If the pressure drop reaches a predefined limit, the valve is switched into an intermediate position, resulting in a smaller portion of the exhaust gas flowing through the heat exchanger duct than when the valve is in the first position and a remaining portion flowing through the bypass duct, thereby reducing the pressure drop across the heat exchanger system.

Abstract: A heat exchanger including a suction line for gaseous or two phase refrigerant output from an evaporator and a capillary tube carrying cooled refrigerant to the evaporator. The suction line includes first and second substantially parallel straight cylindrical portions connected in series, with first and second portions of the capillary tube in series and helically wound around the suction line second and first portions, respectively. A valve for bypassing the capillary tube is responsive to a selected pressure differential between the capillary tube inlet and outlet. A U-shaped portion or accumulator connect the suction line first and second portions. An accumulator alternately is between the evaporator and the suction line portion wound by the capillary tube, with a phase separation chamber connected to an accumulator by a vertical pipe. The accumulator includes a discharge opening to return the oil to the system.

Abstract: An apparatus includes heat-generating structure disposed in an environment having an ambient pressure, and a cooling system for removing heat from the heat-generating structure. The cooling system includes a fluid coolant, structure which reduces a pressure of the coolant to a subambient pressure at which the coolant has a boiling temperature less than a temperature of the heat-generating structure; and structure which directs a flow of the liquid coolant at the subambient pressure so that it is brought into thermal communication with the heat-generating structure, the coolant then absorbing heat and changing to a vapor. A method for cooling heat-generating structure disposed in an environment having an ambient pressure includes providing a fluid coolant and reducing a pressure of the coolant to a subambient pressure at which the coolant has a boiling temperature less than a temperature of the heat-generating structure.

Abstract: The present invention provides a cooling system of fuel cell, which solves the gas biting noise problem by trapping bubble in a coolant, gives protection to a stack (MEA) and the membrane of a humidifier by regulating the coolant pressure of fuel cell and improves the life of a ion exchanger by preventing foreign materials (carbonate ion etc.) from dissolving into the coolant.

Abstract: A method and apparatus for reducing heat stress in firefighters supplies pressurized cooling water at a first pressure from a hose connected to a fire main for fighting fires onboard a ship. A manifold block switches parts of the pressurized cooling water at the first pressure through on/off valves and reduces pressure of the parts of the pressurized cooling water at the first pressure to a second pressure in flow regulators. The parts of the pressurized cooling water at the second pressure are fed through feeder hoses connected to the flow regulators and are conducted from the feeder hoses through tube suits each worn by a firefighter. Heat stress is reduced for each firefighter in each tube suit by the conducted parts of pressurized cooling water at the second pressure. The feeder hoses provide cooling water through each tube suit while the firefighters fight fires and during rest periods.

Abstract: The present invention comprises a method and device for deterring the freezing within a condenser by preventing critical pressure differentials from building up between the exhaust steam header and the air ejector systemy. The means for regulating pressure in the air ejector system prevents the pressure difference between the turbine exhaust and the air ejector system from being great enough to carry condensate through a condensing tube into an air ejector system.

Abstract: A system for detecting flaws in assembled plate type heat exchangers with minimum stoppage of the production line. The system comprises a high pressure air path and a low pressure water path, flowing in opposite directions, and a sensor for detecting pressure increases in the low pressure path. Such pressure increases occur as a result of flaws in the plate, permitting pressure transfer from the high pressure path. The pressure sensor is connected to a valve which opens in response to increased pressure level in the low pressure path. A pulse counter counts the number of times the valve opens and provides a readout to a convertor. The size of holes present may be determined by computerized conversion of the counter readings and may be provided as a printout.

Abstract: A method and apparatus are described for responding to a fire emergency at a facility by analyzing a plurality of fire threat conditions to determine possible responses to a fire emergency and selecting a response to the fire emergency for minimizing human casualties within the facility. The present invention may be characterized in one embodiment as a method for generating an automated response to an emergency that includes the steps of (a) receiving as input fire threat condition data for a facility; (b) analyzing the fire threat condition data to determine a matrix of possible responses to a fire emergency; and (c) selecting a response from the matrix of possible responses to minimize human casualties.

Abstract: A system and method for enthalpy transfer in a fuel cell includes flowing a gas and liquid water through a thermally conductive conduit, flowing a relatively hot gas containing water vapor across an external portion of the conduit, and transferring enough heat from the hot gas to cool the hot gas below its dew point and to cause a portion of the liquid water in the conduit to evaporate.

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 system for measuring a thermal property of a garment includes a mannequin having a form similar to at least a portion of a mammalian body and adapted to wear the garment. Fluid is circulatable through at least a portion of the mannequin. An outer surface temperature sensor is affixed to the mannequin, and a fluid pressure regulator and temperature controller are located exterior of the mannequin. A meter monitors the energy usage of the controller, which is indicative of the thermal property of the garment. Environmental conditions are controllable, including variable wind speeds and induced mannequin motion.

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 heat exchanger which is symmetrical with respect to rotation, especially a thermal roller which is driveable for rotation and is heated by a fluid or gas, preferably a heat transfer oil, water or steam, and is preferably used in the paper industry includes at least one shut-off device for cutting off the forward flow and/or return flow of the thermal roller as soon as the forward flow pressure and/or the return flow pressure of the heat transfer medium drops off significantly or drops to zero.

Abstract: An air conditioning system includes compressor protective means for protecting a compressor. The compressor protective means includes first and second protective values. The first protective value is set for preventing a failure of a compressor. The second protective value is lower than the first protective value in order to prevent a high pressure in a refrigerant cycle system from reaching the first protective value. The compressor protective means sets the second protective value such that the second protective value used before an elapse of a predetermined time period from startup of the compressor is lower than the second protective value used after the elapse of the predetermined time period.

Abstract: The present invention provides a cooling module (100) and a method for forming the cooling module (100). The cooling module (100) is effective in reducing the temperature of heat-generating components mounted on the cooling module (100). The cooling module (100) includes a housing (105), a pressure relief mechanism (200), and a shearing surface (201). The housing (105) includes a cooling material (121) disposed therein. The pressure relief mechanism (200) is disposed within the housing (105) and covers the opening (203) to provide a seal that seals the housing (105). The shearing surface (201) is effective to break the seal upon exceeding a predetermined pressure within the housing (105).

Abstract: A pressure relief device mounts to heat exchange coils having fluid flowing therethrough. A base has an orifice formed therethrough extending through an orifice in the coil to the interior of the coil. A cover attaches to the base with bolts or other attachment means. A diaphragm strip inserts between the cover and the base to close off the orifice in the base. An o-ring or other gasket may also be utilized to seal the structure. When a rupture through the diaphragm occurs due to pressure buildup, the diaphragm strip may be advanced to reclose the orifice.

Abstract: An heat exchanger apparatus mounted in a closed volume, such as a vehicle overflow tank or vehicle radiator, includes a rotating member divided internally by a stationary disk, with the interior of the rotating member and the disk connected in fluid flow communication with a refrigerant to enable the rotating member to act as a heat sink to sweep condensate back into the surrounding closed volume tank or radiator. The rotating member is rotated at a constant speed to provide a specified heat exchange capacity to enable the engine to operate for extended periods without use of the main heat exchanger or radiator.

Abstract: A device for pressurizing a plate bundle which is arranged in a leakproof vessel (2) and comprises a stack of plates which are parallel to one another to form a first circulation circuit for a first fluid under pressure and a second circulation circuit for a second fluid under pressure. The device includes a first conduit (15) for connecting the vessel (2) to the delivery (10) of the first fluid continuously feeding the vessel (2), a second conduit (16) for connecting the vessel (2) to the delivery (12) of the second fluid feeding the vessel (2) in the event of stoppage of the delivery of the first fluid, and controls (20) for feeding of the vessel (2) with the second fluid.