A refrigeration unit includes a compressor, a first heat exchanger, a second heat exchanger, a water pump, and a heat exchanging arrangement. The heat exchanging arrangement includes a main casing having a receiving cavity divided into a water atomizing compartment and one water showering compartment, a water atomizing unit, a water showering head, a fill material unit provided underneath the water showering head, and a water collection basin provided underneath the water atomizing unit and the fill material unit. A predetermined amount of heated water from the first heat exchanger is guided to flow to the water showering head and the water in the water showering head is sprinkled on the fill material unit. A predetermined amount of water from the water pump is guided to flow to the water atomizing unit and the water flowing to the water atomizing unit is sprayed and atomized in the water atomizing compartment.

A refrigerator includes a main body that has a storage chamber and a drying chamber; a thermoelectric module that includes a heat absorber and a heat dissipater; a cooling fan that circulates air in the storage chamber to the heat absorber and the storage chamber; a heat-dissipating fan that blows air to the heat dissipater; an air guide that has a passage for guiding air heated by the heat dissipater to the drying chamber; a heater that is disposed in the passage; and a damper that controls a flow of air in the passage between the heat-dissipating fan and the heater. Heat of the heat dissipater transfers to the drying chamber through the passage of the air guide and the damper, thereby being able to dry an object to be dried.

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.

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.

A cooling system and method including a cooling chamber with an air inlet, a water inlet, and a cooling fill disposed between the air inlet and the water inlet. The cooling fill configured to put more water surface area in contact with air. The cooling system also including a basin disposed on a side of the cooling fill that is opposite the water inlet, the basin configured to collect the water from the cooling fill. A precooler is included in combination with the basin, the precooler including a heat-mass exchanger in combination with the basin, a blower configured to provide pressurized air through the heat-mass exchanger, and an expansion device configured to depressurize the air after the heat-mass exchanger.

A cooling system and method including a cooling chamber with an air inlet, a water inlet, and a cooling fill disposed between the air inlet and the water inlet. The cooling fill configured to put more water surface area in contact with air. The cooling system also including a basin disposed on a side of the cooling fill that is opposite the water inlet, the basin configured to collect the water from the cooling fill. A precooler is included in combination with the basin, the precooler including a heat-mass exchanger in combination with the basin, a blower configured to provide pressurized air through the heat-mass exchanger, and an expansion device configured to depressurize the air after the heat-mass exchanger.

A water recirculation system operates in a primary mode for evaporatively cooling air. When the water recirculation mode malfunctions, the controller switches a secondary once-through mode. The system includes a sump for collecting water run-off from the evaporative pads, and a pump in fluid communication with the sump. The pump transfers moisture from the sump to the distribution arrangement located at the top of the evaporative pads during the recirculation mode. An automatically operated make-up water valve delivers water to a distribution arrangement on the evaporative pads. A moisture distribution arrangement distributes moisture to the evaporative pads and an automatically operated sump drain valve retains water in the sump when closed and freely drains water from the sump when open. A water level control communicates the sump water level to a control system. A monitoring mechanism detects whether the water-recirculation system has malfunctioned or is operating correctly.

A water recirculation system operates in a primary mode for evaporatively cooling air. When the water recirculation mode malfunctions, the controller switches a secondary once-through mode. The system includes a sump for collecting water run-off from the evaporative pads, and a pump in fluid communication with the sump. The pump transfers moisture from the sump to the distribution arrangement located at the top of the evaporative pads during the recirculation mode. An automatically operated make-up water valve delivers water to a distribution arrangement on the evaporative pads. A moisture distribution arrangement distributes moisture to the evaporative pads and an automatically operated sump drain valve retains water in the sump when closed and freely drains water from the sump when open. A water level control communicates the sump water level to a control system. A monitoring mechanism detects whether the water-recirculation system has malfunctioned or is operating correctly.

An adiabatic cooling system includes a condenser coil and at least one mist chamber positioned around the condenser coil such that at least a portion of intake air for the adiabatic cooling system passes through the mist chamber prior to contacting the condenser coil. The at least one mist chamber includes a first cooling pad with a first intake-side face and a first output-side face and a second cooling pad with a first intake-side face and a first output-side face. The second-intake side face of the second cooling pad faces the first output-side face of the first cooling pad and is separated from the first-output side face of the first cooling pad by a gap. The gap includes a mist of water.

An adiabatic cooling system includes a condenser coil and at least one mist chamber positioned around the condenser coil such that at least a portion of intake air for the adiabatic cooling system passes through the mist chamber prior to contacting the condenser coil. The at least one mist chamber includes a first cooling pad with a first intake-side face and a first output-side face and a second cooling pad with a first intake-side face and a first output-side face. The second-intake side face of the second cooling pad faces the first output-side face of the first cooling pad and is separated from the first-output side face of the first cooling pad by a gap. The gap includes a mist of water.