Abstract: An indoor unit for an air-conditioning apparatus includes a case, an air-sending fan, and a heat exchanger unit. The heat exchanger unit includes a plurality of heat-transfer pipes extending in a vertical direction and forming a plurality of refrigerant passages in a width direction of the case and an air flow direction, and a plurality of headers connected to both ends of the plurality of heat-transfer pipes to allow the refrigerant to flow between the plurality of heat-transfer pipes. The plurality of headers include a plurality of division headers dividing and connecting the plurality of heat-transfer pipes arranged in the air flow direction and connecting in parallel the plurality of heat-transfer pipes arranged in the width direction, and a return header connecting and turning back the plurality of divided refrigerant passages arranged in the air flow direction and connecting in parallel the plurality of heat-transfer pipes arranged in the width direction.

Abstract: An indoor unit for an air-conditioning apparatus includes a main heat exchanger unit and a sub heat exchanger unit, the main heat exchanger unit includes a first main heat exchanger disposed at a front side of a case and a first heat-transfer pipe extending in a vertical direction, and a second main heat exchanger disposed at a back side of the case and a second heat-transfer pipe extending in the vertical direction. The sub heat exchanger unit includes a leeward-side first sub heat exchanger disposed at a leeward side of the first main heat exchanger and a heat-transfer pipe extending in a width direction, and a leeward-side second sub heat exchanger including a heat-transfer pipe extending in the width direction. The leeward-side second sub heat exchanger has a lower end surface located above an air passage wall and is disposed at a leeward side of the second main heat exchanger.

Abstract: Disclosed herein is a heat exchanger for the recovery of waste heat. The heat exchanger includes: a bottom plate configured such that an exhaust gas inlet is formed therethrough; a top plate configured such that an exhaust gas outlet is formed therethrough at a location opposite that of the exhaust gas inlet; a first side plate configured such that a plurality first side through holes is formed therethrough; a second side plate configured such that a plurality of second side through holes is formed therethrough at locations opposite those of the first side through holes; a third side plate and a fourth side plate configured to connect the first side plate and the second side plate; and a plurality of heat exchange tubes formed as titanium material tubes, and configured to connect parallel between the first side through holes and the second side through holes.

Abstract: Plate-shaped fins of a heat exchanger each include, at circumferential portions thereof defining a notch in which a heat transfer tube having a flattened shape is disposed, fin collars formed by being raised from the circumferential portions. Each of the fin collars includes, in a position that faces a long axis side surface of the heat transfer tube, at least one reflare section bent in a direction opposite to the side surface. At least one of the reflare sections defining fin pitches between the adjoining plate-shaped fins is formed so that a reflare tip portion, which is a tip portion of the reflare section, is drawn apart from a contact side surface of the plate-shaped fin with which the reflare section comes into contact.

Abstract: A liquid-cooling device and an air collector thereof are provided. The air collector includes a tank, an inlet channel, an outlet channel, and a barrier plate. The inlet channel is located at one end of the tank and extended into the tank. The outlet channel is located at the other end of the tank and extended into the tank. The barrier plate is located in the tank between the inlet channel and the outlet channel. The diameter of the tank is greater than those of the inlet channel and the outlet channel.

Abstract: An indoor unit of an air conditioner includes a housing, a fan and a heat exchanger. The housing includes an upper base plate provided with an air inlet, a lower base plate detachably mounted to the upper base plate, and a front cover detachably mounted to the upper base plate; the fan is detachably mounted to the lower base plate; and the heat exchanger is detachably mounted to the upper base plate, in which the heat exchanger includes a supporting seat and a heat exchanger core body mounted to the supporting seat. The upper base plate is provided with a first positioning portion; the supporting seat is provided with a second positioning portion; and the first positioning portion cooperates with the second positioning portion to position the heat exchanger core body on the upper base plate.

Abstract: The system comprises at least one evaporator device arranged around a tube inside which a hot fluid flows and, for each evaporator device, a respective conduit connected at its opposite ends to the evaporator device so as to form with the latter a closed circuit containing a two-phase fluid. Each evaporator device comprises a casing, having an inner wall in contact with the respective tube and an outer wall enclosing a cavity with the inner wall, and a separating member of porous material arranged inside the casing so as to divide radially the cavity into an inner cavity, extending between the inner wall and the separating member, and an outer cavity extending between the separating member and the outer wall.

Abstract: A heat transfer apparatus is described having a manifold. The manifold has a surface having a fluidic exit opening and a fluidic entrance opening. A fluid is to flow from the fluidic exit opening and into the fluidic entrance opening. The manifold has a protrusion emanating from the surface between the fluidic exit opening and the fluidic entrance opening. An apparatus is described having a thermally conductive grooved structure. The thermally conductive grooved structure has a surface having first and second cavities to form first and second fluidic channels. The thermally conductive grooved structure has a protrusion emanating from between the cavities. The protrusion has side surfaces to form parts of the first and second fluidic channels.

Abstract: A heat exchanger (10) of a heat exchange device used for air cooling cold water units or commercial roof machines, a method for manufacturing the heat exchanger (10), a heat exchange module, a heat exchange device, and a heat source unit. The heat exchanger (10) comprises: a main body portion (ab); a bent portion (cd) with a trapezoid cross section, the bent portion (cd) and the main body portion (ab) being connected and approximately perpendicular to each other; two collecting pipes (11, 12), disposed on two opposite sides of the heat exchanger (10); and multiple heat exchange pipes (13), each extending from one collecting pipe (11) of the two collecting pipes (11, 12) to the other collecting pipe (12) by passing through the main body portion (ab) and the bent portion (cd), wherein a top edge of the bent portion (cd) and a top edge of the main body portion (ab) of the heat exchanger (10) are approximately located at the same height level.

Abstract: A dry cooling system can include: a heat source flow duct; an air duct disposed over the heat source flow duct; an opening between the heat source flow duct and the air duct such that an air flows through the opening; and a heat pipe including an evaporator section disposed in the heat source flow duct and a condenser section disposed in the air duct. The air can flow from the opening to the condenser section.

Abstract: Large scale field erected air cooled industrial steam condenser having 10 heat exchanger bundles per cell arranged in five pairs in a V-shape, each heat exchanger bundle having four primary heat exchangers and four secondary heat exchangers in which each secondary heat exchanger is paired with a single primary heat exchanger. Four primary condensers are arranged such that the tubes are horizontal, while the inlet steam manifolds at one end of the tubes are perpendicular to the primary condenser tubes, i.e., parallel to the transverse axis of the bundle. Steam enters the small inlet steam manifolds from below. Cross-sectional dimensions of the tubes are 200 mm wide with a cross-section height of less than 10 mm with fins that are 10 mm in height, arranged at 9 to 12 fins per inch.

Abstract: A method of making a light weight housing for an internal component is provided. The method including the steps of: forming a first metallic foam core into a desired configuration; forming a second metallic foam core into a desired configuration; inserting an internal component into the first metallic foam core; placing the second metallic foam core adjacent to the first metallic core in order to secure the internal component between the first metallic foam core and the second metallic foam core; applying an external metallic shell to an exterior surface of the first metallic foam core and the second metallic foam core; and securing an inlet fitting and an outlet fitting to the housing, wherein a thermal management fluid path for the internal component into and out of the housing is provided by the inlet fitting and the outlet fitting.

Abstract: This heat receiving tile formed of CFC is provided with a heat receiving block formed of a carbon fiber composite material and having a through hole, a cooling pipe inserted through the through hole of the heat receiving block, a buffer material provided to an outer periphery of the cooling pipe, a first brazing portion joining an inner surface of the through hole with an outer surface of the buffer material, a second brazing portion joining an inner surface of the buffer material with an outer surface of the cooling pipe, and a material discontinuous portion extending from a heat receiving surface of the heat receiving block up to the outer surface of the cooling pipe over a full length of the heat receiving block in an axis direction of the through hole.

Abstract: A wind turbine with a tower; a nacelle supported by said tower; at least one unit to be cooled and arranged in the tower or the nacelle; a tower mounted heat exchange structure arranged outside the nacelle and tower; and a circuit facilitating a flow of a fluid medium between the at least one unit and the heat exchange structure. To improve thermal convection with the ambient space, the heat exchange structure comprises a set of panels mutually angled and extending outwards from the tower such that a flow of ambient air can pass transversely trough the panels and thereby cool the unit.

Abstract: A hydro fire mitigation system is provided that is associated with a structure. The system employs a number of sensors that detect an oncoming fire, which directs a controller to initiate fluid flow through a number of sprinklers. The system is fully autonomous and does not require municipal water or power during use.

Abstract: The present disclosure relates to a nozzle device for discharging a fire extinguishing medium into a cargo hold of an aircraft. In order to achieve a reduced weight of a nozzle device while at the same time providing fire protection properties that satisfy the approval requirements, a nozzle device for discharging a fire extinguishing medium into a cargo hold of an aircraft is proposed, which is characterized in that the nozzle device is made of aluminum and/or an aluminum alloy and/or a CFRP material and the nozzle device has a layer of an intumescent material at least on a side facing the cargo hold in the installed state.

Abstract: Composite heat pipes, methods of assembling composite heat pipes, sandwich panels having one or more composite heat pipes, methods of assembling sandwich panels, radiator panels, methods of assembling radiator panels, spacecraft, and methods of assembling spacecraft are disclosed. Composite heat pipes include an elongate conductive casing and one or more fiber reinforced composite layers operatively coupled to one or more lateral sides of the elongate conductive casing. Sandwich panels include two spaced-apart face-sheets, a core positioned between the two spaced-apart face-sheets, and one or more composite heat pipes. Spacecraft include a body and two radiator panels operatively coupled to the body opposite each other.

Abstract: A method of efficiently heating a passenger cabin of a vehicle includes heating a first fluid using a fluid heater. The first fluid flows through a thermal storage element to transfer thermal energy to the thermal storage element. The heating of the first fluid and the thermal storage element occurs during a recharging of a rechargeable power source used to power the vehicle. During operation of the vehicle and following discontinuation of the recharging of the rechargeable power source, the thermal energy stored to the thermal storage element is transferred to air to be distributed to the passenger cabin of the vehicle by flowing the first fluid through a first heat exchanger in thermal communication with the air to be distributed to the passenger cabin of the vehicle, thereby extending a range of the vehicle.

Abstract: A cooling system of an internal combustion engine includes a first flow passage supplying a cooling medium of the internal combustion engine to a radiator, a second flow passage branching from the first flow passage by a flow control valve to supply the cooling medium to a first heat exchanging portion, a third flow passage provided separately from the first flow passage to supply the cooling medium to a second heat exchanging portion via an on-off valve and a control portion controlling the on-off valve and the flow control valve based on a temperature of the cooling medium.

Abstract: A technology includes a first plate including a first pair of legs defining a first channel; a second plate including a second pair of legs defining a second channel; a first block supporting the first plate and the second plate such that the first block is positioned between the first channel and the second channel; a second block including a U-shaped trench with a first open end portion and a second open end portion, wherein the first open end portion leads to the first channel, wherein the second open end portion leads to the second channel; a tube extending within the U-shaped trench; and a U-shaped cover covering the U-shaped trench.