A heat exchanger cooling system includes: a passage extending from a water tank and branching off into a first passage and a second passage at a branch portion provided in the middle of extension of the passage, the passage including a water discharge portion provided on a distal end side of the first passage so as to face a radiator; a pump configured to send water into the passage from the water tank; a first opening-closing valve provided in the first passage and configured to open and close the first passage; a second opening-closing valve provided in the second passage and configured to open and close the second passage; and a controlling portion configured to control an operation of the pump and to control opening and closing of the first opening-closing valve and the second opening-closing valve.

A liner tube for an inlet channel of a plate heat exchanger may include an open front side for supplying a refrigerant mass flow, an at least partially closed rear side, and at least two bag-like chambers running in a longitudinal direction of the liner tube. Each chamber may communicate with the open front side, and may have openings at chamber-dependent different positions for distributing the refrigerant mass flow in plate stacks of the plate heat exchanger.

A pipe of a fuel cell system includes a pipe, one end side of which is connected to a fuel cell stack, and another end side of which is positioned adjacent to a vehicle structural component, through which water, and discharge air of a product that contains water vapor, which are produced by the fuel cell stack, flow; and a spray portion that is provided on the other end side of the pipe, and that sprays the water and the discharge air flowing through the pipe onto the vehicle structural component.

In an embodiment, a method of forming a cooling plate, comprises laser welding a plurality of weld lines to physically connect a first substrate and a second substrate wherein the plurality of weld lines forms an inflatable track; and inflating the inflatable track with an inflation fluid to form a cooling channel in the cooling plate. In another embodiment, the cooling plate can comprise a first substrate and a second substrate and a plurality of weld lines can form a fluid tight seal for a cooling channel located therebetween.

A method of cooling a battery cell includes: atomizing a cooling fluid by driving it through a micro-nozzle at a pressure sufficient to create a jet of aerosolized liquid droplets while retaining sufficient momentum in flow of the fluid to travel from the nozzle to an outer surface of the battery cell; impinging the spray of the jet of aerosolized liquid droplets on an outer surface of the battery cell; partially evaporating the liquid droplets on the outer surface to conduct heat from the outer surface; and convecting heat from the outer surface of the battery via the cooling fluid.

A method for controlling thermal conductivity between two thermal masses includes thermally contacting a first conduction body with a heat source, thermally contacting a second conduction body with a heat sink, and thermally contacting the second conduction body with the first conduction body by moving the first conduction body between a first position and a second position with a thermal expansion component. The thermal expansion component moves the first conduction body between the first position and the second position at a predetermined temperature and heat is conducted from the heat source to the heat sink through the first and second conduction bodies.

A heat exchanger for a fuel cell system, in particular in a vehicle, includes a gas section for at least one gas and one cooling fluid section for cooling the at least one gas, a housing, and a cooler matrix which is arranged in the housing and in which the cooling fluid section is configured, where the cooler matrix forms a multiplicity of cavities which produce the gas section, at least one gas inlet on the housing, at least one partition in the cooler matrix for dividing the gas section into at least two flows, with the result that the two flows can be cooled by way of the same cooling fluid section, and at least two gas outlets on the housing, where each flow opens into a dedicated gas outlet.

A heat exchanger for a battery unit having at least a first battery module and a second battery module is disclosed wherein the first and second battery modules each include a plurality of battery cell containers each housing at least one battery cell. The first and second battery modules are spaced apart from each other with the heat exchanger being arranged between the spaced apart first and second battery modules. The heat exchanger is a laminated plate structure defining a plurality of fluid flow chambers each located within a respective fluid flow region for transmitting a heat exchanger fluid. Each of the fluid flow regions is dimensionally compliant independent of the other fluid flow regions to conform to the spacing of the respective battery cell containers in the first and second modules between which the specific fluid flow region is positioned when arranged between the first and second battery modules.

The power generation system includes a fuel-cell subsystem having a fuel-cell configured to generate an electrical power. The power generation system further includes a power electronics subsystem electrically coupled to the fuel-cell subsystem and configured to process at least a portion of the electrical power generated by the fuel-cell subsystem. The power generation system also includes a first conduit fluidly coupled to the power electronics subsystem and configured to supply at least a portion of a fuel stream to the power electronics subsystem. The power electronics subsystem is configured to heat the portion of the fuel stream to form a pre-heated fuel stream. Moreover, power generation system includes a second conduit fluidly coupled to the power electronics subsystem and the fuel-cell subsystem and configured to supply the pre-heated fuel stream to the fuel-cell subsystem. The fuel-cell is configured to generate the electrical power using the pre-heated fuel stream.

Disclosed herein is an integrated multiple heat exchange device and a fuel cell system using the same. The integrated multiple heat exchange device includes a plurality of heat exchangers for consecutively collecting heat contained in a plurality of gases that are present in the fuel cell system and that have different temperatures, wherein the plurality of heat exchangers are separated from each other, a porous separator is placed between the plurality of heat exchangers such that condensate is collected at a lowermost heat exchanger, and a coolant line penetrates a separator to pass through all the plurality of heat exchangers.