A total heat exchange element includes a plurality of partition plates arranged at intervals. Each of the partition plates includes a base having a first principal surface and a second principal surface, and a moisture permeable membrane provided on or close to the first principal surface of the base. First flow paths through which air flows and second flow paths through which air having a higher water vapor pressure than the air in the first flow paths flows are alternately arranged with an associated one of the partition plates sandwiched between adjacent ones of the first flow paths and the second flow paths. In each of the plurality of partition plates, the first principal surface of the base faces a corresponding one of the first flow paths, and the second principal surface of the base faces a corresponding one of the second flow paths.

A method uses a sheet shaped member to separate two spaces from each other. The sheet shaped member includes a base having a first principal surface and a second principal surface, and a moisture permeable membrane provided on or close to the first principal surface of the base. The first principal surface of the base is arranged in one of the two spaces having a lower water vapor pressure when the two spaces separated from each other by the sheet-like member have different water vapor pressures.

A fuel system includes an internal combustion engine, a fuel device and a heat exchanger. The internal combustion engine receives an air/fuel mixture and produces heated exhaust air. The fuel device receives fresh air and provides the air/fuel mixture that is received by the internal combustion engine. The heat exchanger receives the heated exhaust air from the internal combustion engine and fresh cool air, transfers heat energy from the heated exhaust air to the fresh cool air, and provides the fresh air to the fuel device. The provided fresh air is the fresh cool air that has received the heat energy.

A method for manufacturing a heat exchanger includes stacking a plurality of parting sheets, a plurality of lengthwise closure bars, and a plurality of widthwise closure bars to form a rectangular first heat exchanger section. The first heat exchanger section includes at least one widthwise passage extending between a pair of the widthwise closure bars and at least one lengthwise passage extending between a pair of the lengthwise closure bars. The method also includes brazing the rectangular first heat exchanger section together and cutting a first side and a second side of the rectangular first heat exchanger section to give the first heat exchanger section a tapered-trapezoid profile. The method further includes brazing an end of a second heat exchanger section to the first or second side of the first heat exchanger section.

A heat exchanger includes a first side opposite a second side and a third side opposite a fourth side and a cold layer with an inlet at the first side of the heat exchanger, an outlet at the second side of the heat exchanger, and a cold passage extending from the inlet to the outlet. The heat exchanger also includes a hot layer with an inlet manifold at the third side of the heat exchanger extending between the first side and the second side, an outlet manifold at the fourth side of the heat exchanger opposite the inlet manifold and extending between the first side and the second side, a hot passage extending from the inlet manifold to the outlet manifold, and a tube on the first side of the heat exchanger extending from the third side to the fourth side.

An arc-shaped plate heat exchanger, including a cylindrical housing and a heat-exchanging plate assembly. The heat-exchanging plate assembly includes two groups of arc-shaped heat-exchanging plates symmetrically disposed at either side of the axis of the housing. In each group of the arc-shaped heat-exchanging plate, multiple arc-shaped heat-exchanging plates are arranged from the housing center outward and form isolating first and second fluid channels, the plates' diameters increasing outward. During heat exchange, cold fluid enters the heat exchanger from the housing's first fluid inlet, and flows through straight channels of the arc-shaped heat-exchanging plates to exit from a first fluid outlet, while the hot fluid enters the heat exchanger from a second fluid entrance on the side wall of the housing, and flows through arc-shaped channels of the arc-shaped heat-exchanging plates to exit from a second fluid outlet. Heat exchange between the cold and hot fluid is thus achieved.

Exchanger (16) for cooling hot primary air by means of cold secondary air, comprising: a plurality of channels (80) for the circulation of the secondary air; and a plurality of channels for the circulation of the primary air, characterized in that said exchanger further comprises: water circulation channels (83) each extending adjacently to a secondary channel (80); water-spray micro-perforated hollow bars (63) each extending adjacently to a primary channel (60) and fluidically connected to the micro-perforated hollow bars in order to be able to heat the water by interaction with the primary air before said water is sprayed into the flow of primary air at the inlet of the exchanger.

A heat exchanger comprising a plurality of plates that are demountably attached to a frame is disclosed. Each plate comprises a plurality of channels for conveying a primary fluid through the heat exchanger. The frames are arranged in the frame so that spaces between adjacent frame pairs define conduits for conveying a secondary fluid through the heat exchanger. The plates are mounted in the frame so that they can be individually removed from the frame. Further, each of the channels is fluidically connected to input and output ports for the primary fluid by detachable couplings. As a result, heat exchangers in accordance with the present invention are more easily repaired or refurbished than prior-art heat exchangers.

A plate fin heat exchanger is configured to receive hot flow from a hot source and cool flow from a cool source. The plate fin heat exchanger includes a plurality of plates arranged in parallel to define a plurality of flow passages there between, and a set of closure bars arranged at a first side of the plurality of plates to seal a first set of the flow passages against ingress of the hot flow, thereby directing the hot flow into a second set of the flow passages. Each respective closure bar includes an inner core formed of a first material having a first coefficient of thermal expansion and an outer cladding arranged about the inner core, the outer cladding formed of a second material having a second coefficient of thermal expansion. The first coefficient of thermal expansion is less than the second coefficient of thermal expansion.

The purpose of the present invention is to provide an air guide-integrated evaporation cooler which allows a plurality of barrier plates, heat exchangers, and air guides for forming a dry channel and a wet channel to be integrally manufactured by a simple process, and a method of manufacturing the same. The air guide-integrated evaporation cooler for implementing the purpose includes a plurality of barrier plates; and gap units including a plurality of bars positioned between the plurality of barrier plates, disposed to be spaced apart from each other at a center portion thereof, and configured to form heat exchangers, and guides disposed at edges of the plurality of barrier plates and configured to determine a direction of a fluid flow.