Abstract: One technique for improving cooling system efficiency is to operate cooling for a data center with a dynamic and distributed cooling system. A distributed cooling system may include multiple compressors operating cooperatively for cooling the data center. A dynamic cooling system may adjust operation of the compressors based on one or more parameters, such as inside temperature, outdoor temperature, inside humidity, outside humidity, and load on the data center. A dynamic cooling system may operate in a fail-on mode, adjusting the load placed on independent refrigeration circuits of an air handler system to compensate for a failure of one or more refrigeration circuits. By appropriately controlling speeds of the compressors, the power efficiency of the cooling system may be improved by ensuring that all activated compressors are operating within their efficient operating range.

Abstract: A method for operating a cooling system of a ship, having a sea water part system with a sea water pump (14a, 14b) and at least one first cooling water circuit. The first cooling water circuit includes a bypass in a heat exchanger coupling the sea water part system and the first cooling water circuit and a control valve. A position of the control valve determines a cooling water proportion of the first cooling water circuit that is conducted via the heat exchanger and a cooling water proportion of the first cooling water circuit that is conducted via the bypass. The position of the control valve is controlled such that an advance cooling water temperature corresponds to a set point value. The rotational speed of the sea water pump is controlled based on the position of the control valve.

Abstract: An air conditioning device is provided. The air conditioning device comprises a fan and is provided on an underside of a seating surface of a vehicle seat. The fan comprises a case module and a restrictor. The case module comprises a first case and a second case. The first case is located at a side of the fan where the seating surface is located. The second case is located at a side of the fan opposite to the seating surface and is assembled to the first case. The restrictor is configured to restrict assembling of the first case and the second case to each other when an orientation of the second case with respect to the first case is different from a specified orientation.

Abstract: A heat exchanger has (i) a first passage in which a first fluid flows, (ii) a heat storage body that is thermally connected to the first passage and stores a warm heat or a cold heat, and (iii) a second passage that is thermally connected to both of the first passage and the heat storage body, the second passage in which a second fluid flows. The heat storage body changes to a first phase in a solid state when a temperature of the heat storage body is lower than or equal to a phase transition temperature, and changes to a second phase in a solid state when the temperature of the heat storage body exceeds the phase transition temperature. The heat storage body stores or dissipates heat depending on a phase transition between the first phase and the second phase.

Abstract: The header tank of the heat exchanger and the heat exchanger having the same may prevent leakage of a heat exchanging medium from the header tank of the heat exchanger after a header, a tank, and a baffle are bonded by a brazing by forming concavely forming parts at an outer side of the header so that edge portions of the header at which the header, the tank, and the baffle are joined together with one another are not spaced apart from the tank and the baffle to minimize a gap (space) of portions at which inner side edge portions of the header are joined with the tank and the baffle.

Abstract: A fuel-oil heat exchange system for an engine having a first fuel line for delivery of fuel to an engine combustor and a second fuel line for delivery of fuel to ancillary engine equipment. The heat exchange system has a first heat exchanger for transfer of heat from an engine oil system to the first fuel line and a second heat exchanger for transfer of heat from the engine oil system to the second fuel line. A control valve is provided for selective control of the oil flow from the engine oil system to the first and second heat exchangers.

Abstract: A heat spreading module for a portable electronic device includes a metal plate to which a heat generation body contacts, a first heat pipe that is attached along the metal plate, transfers heat of a heating region of the metal plate, to which the heat generation body contacts, to a region that is away from the heating region of the metal plate, comprises a first end portion and a second end portion, has a predetermined length, and a portion of the first end portion is arranged in the heating region, and a second heat pipe that is arranged away from the heating region and is longer in length than the first heat pipe.

Abstract: A modulator for a sub-cool condenser assembly including a condenser. The modulator includes a plurality of extruded tubes positioned to convey liquid refrigerant towards an outlet of the modulator.

Abstract: Disclosed herein is a heat pump system for a vehicle which includes an evaporator mounted on a cold air passageway inside an air-conditioning case, a condenser mounted on a warm air passageway, a first blower mounted at an inlet side of the cold air passageway of the air-conditioning case, a second blower mounted at an inlet side of the warm air passageway and an intake duct mounted between the first blower and the second blower to supply indoor air and outdoor air to the first blower and the second blower respectively, thereby maximizing space efficiency because using just one intake duct for the two blowers, and reducing the size and manufacturing costs of the heat pump system.

Abstract: A fin and a bending type heat exchanger having the fin includes a first header pipe, a second header pipe, a flat pipe and the fin. The first header pipe and the second header pipe have bending sections. The fin extends generally in a wavy shape along a longitudinal direction and includes a main section and a connecting section, the main section and the connecting section are connected in series so as to make the connecting section form a wave crest and a wave trough, and the fin is divided into a first end portion, a second end portion, and a central portion between the first end portion and the second end portion along a transverse direction, in which the connecting section of the central portion, forming the wave crest and the wave trough, is connected with the flat pipe, and a gap exists between the connecting section, forming the wave crest and/or the wave trough, of at least one of the first end portion and the second end portion and the flat pipe within the bending section.

Abstract: A heat exchanger assembly is provided which includes a coaxial heat exchanger that is formed, at least in part, of a more corrosion resistant material such as, but not limited to stainless steel, titanium and/or alloys thereof. The assembly further includes a condenser tee connected at each end of the coaxial conduit or tubing defining the heat exchanger. The assembly allows for a non-brazed connection of the condenser tee to an inner tube of the coaxial heat exchanger. In some embodiments, the compression fitting may be connected directly to the heat exchanger without the use of a tee.

Abstract: A wedge-based heat switch includes a plurality of wedge segments on a shaft, an energy storage element (e.g., a spring or pressurized cavity) configured to store (and release) energy via compression or expansion of the element along the shaft and a temperature activated phase transition material. A temperature stimulus activates the phase transition material to release the stored energy and move the wedge segments axially along the shaft to expand or contract the plurality of wedge segments. The wedge-based heat switch may be configured as a unidirectional switch, either conductive-to-insulating or insulating-to-conductive, or a bi-directional switch. The specific design of the wedge-based heat switch is informed by such factors as unidirectional or bi-directional, required preloading of a surface, conductance ratio between conducting and insulating states, temperature stimulus, switching speed and form factor.

Abstract: A heat exchanger is comprised of two heat exchanger sections, at least one of which is provided with a floating header to accommodate differential thermal expansion. The two heat exchanger sections are enclosed by an inner shell wall, and an external connecting passage is provided outside the inner shell wall, through which one of the fluids flows between the two heat exchanger sections. The external connecting passage is enclosed by an outer shell. The inner wall is provided with openings which communicate with the external connecting passage. The openings may be in the form of a substantially continuous gap or discrete openings. Specific examples of heat exchangers with this construction include a steam generator, a steam generator and combined catalytic converter, and a water gas shift reactor.

Abstract: The present invention provides an air conditioning system for a vehicle, which includes an evaporator mounted in a cold air passageway and a condenser mounted in a warm air passageway inside an air-conditioning case to perform cooling and heating, and protecting means for surrounding a plurality of electronic units mounted on the outer surfaces of the air-conditioning case and blowers, thereby preventing breakdowns and malfunctions by preventing foreign matters or water from entering into the electronic units.

Abstract: A system for thermal management of a heat sink via active surfaces. The heat sink includes a cavity within the heat sink, and a nozzle. The nozzle provides a pathway from the cavity to a surface of the heat sink. The heat sink also includes a membrane attached to the cavity and an actuator of the membrane, causing the membrane to oscillate. The oscillation of the membrane causes inflow and outflow of a medium through the nozzle.

Abstract: The air-conditioning system includes: an opening/closing device opening and closing an openable portion in an opening of a building; an air-conditioning device performing air-conditioning inside the building by consuming energy for operation; a monitoring device monitoring environmental information regarding the inside and outside of the building; and a controller controlling the opening/closing device and the air-conditioning device based on the environmental information from the monitoring device, date and time information representing a current date and time, building information representing a location condition of the building, and draft information determined by parameters including an opening area and an opening shape in the openable portion.

Abstract: A removable heatsink assembly adapted to removably receive a pipe. The removable heatsink assembly includes a first plurality of fins and a second plurality of fins having collar flanges sized to receive a pipe. The fins are received on first and second spacer rods, respectively and are hingedly connected by a hinge rod such that the first and second plurality of fins are pivotally movable about the hinge rod between an open position and a closed position. In the open position, the first and second plurality of fins are positionable over the pipe. In the closed position, the collar flanges of the first and second plurality of fins substantially surround the pipe. A fin clamp secures the first and second plurality of fins together in the closed position about the pipe.

Abstract: A gasket locating arrangement for a flow module, preferably plate reactor, includes a gasket, one or more locating devices, a channel in a channel plate, and a barrier plate. The gasket consists of a sheet of soft gasket material. The sheet has a cut through pattern corresponding to the channel in the channel plate. The locating devices are in the gasket, in the channel plate, in the barrier plate or combinations thereof. The locating devices are headed pins, fitting pins, protruded pins, integrated pins, dowel pins, grooves, holes, under cut recesses, thickened parts in the gasket material, and/or gasket deformation zones.

Abstract: A cooling apparatus for a heat-generating element includes: a heat sink on which the heat-generating element is mounted; a cooling component having a recess, the cooling component and the heat sink being faced and joined to each other so that the recess forms a coolant passage; and a sealing member provided between the heat sink and the cooling component so as to seal the coolant passage and separate an interior and exterior of the coolant passage. A first distance is longer than a second distance with regard to a distance between facing surfaces of the heat sink and the cooling component near the sealing member, the first distance being between the facing surfaces at an interior side of the coolant passage separated by the sealing member, and the second distance is a distance between the facing surfaces at an exterior side of the coolant passage separated by the sealing member.