A hydrogen system includes: a compressor including at least one cell that includes an electrolyte membrane, an anode catalyst layer provided on one principal surface of the electrolyte membrane, a cathode catalyst layer provided on another principal surface of the electrolyte membrane, an anode gas diffusion layer provided on the anode catalyst layer and including a porous sheet containing a metal, and a cathode gas diffusion layer provided on the cathode catalyst layer, and a voltage applicator that apples a voltage between the anode catalyst layer and the cathode catalyst layer, wherein the compressor that generates compressed hydrogen by causing the voltage applicator to apply the voltage to move hydrogen in hydrogen-containing gas supplied to an anode to the cathode via the electrolyte membrane; and a controller that causes the voltage applicator to apply the voltage after shutdown or at startup.

An integrated vapor cycle system includes a compressor including a compressor housing, a condenser in fluid communication with the compressor, a flash tank in fluid communication with the condenser, and an evaporator in fluid communication with the flash tank and the compressor. The compressor, the condenser, the flash tank, and the evaporator define a refrigerant circuit circulating a volume of refrigerant therethrough. The compressor housing, the condenser, the flash tank, and the evaporator are formed together as a single unitary component.

A refrigeration apparatus pertaining to the invention can suppress clogging due to polymers formed by the polymerization of refrigerant and improve safety. The refrigeration apparatus is equipped with a refrigeration cycle in which a compressor, a condenser, an expansion mechanism, and an evaporator are connected in a loop. The refrigeration apparatus is equipped with a polymer catcher. The polymer catcher is attached to piping interconnecting an outlet side of the compressor and an inlet side of the condenser and catches polymers of refrigerant circulating in the refrigeration cycle. The refrigerant includes a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds.

An apparatus for vaporizing a medium and separating droplets as well as for condensing, in which apparatus an evaporator (A) and a condenser (B) are arranged inside a single outer casing in such a manner that they are separated from each other by a partition wall.

A cooling device including a freezing cycle including a compressor, a condenser, a pressure reducing means, and an evaporator is provided. In the cooling device, the condenser includes a first condenser and a second condenser independent from each other, the second condenser being positioned at a downstream side of the first condenser in a refrigerant channel, and the first condenser and the second condenser are connected to each other through a dew condensation preventing pipe.

A device for use in a refrigeration or heat pump system. A device includes an outer casing which includes a longitudinal cylindrical shell and end plates arranged at both ends of the shell, and at least three units of the refrigeration or heat pump system arranged inside the same common outer casing, which units are selected from the group consisting of an evaporator, a superheater, an economizer, a condenser, a desuperheater, a sub-cooler and an oil cooler.

A heat pump includes an evaporator with an evaporator inlet and an evaporator outlet; a compressor for compressing operating liquid evaporated in the evaporator; and a condenser for condensing evaporated operating liquid compressed in the compressor, wherein the condenser includes a condenser inlet and a condenser outlet, wherein the evaporator inlet is connected to a return from a region to be heated, and wherein the condenser inlet is connected to a return from a region to be cooled.

Thermal management systems include an open circuit refrigeration system featuring a first receiver configured to store a gas, a second receiver configured to store a liquid refrigerant fluid, an evaporator configured to extract heat from a heat load that contacts the evaporator, and an exhaust line, where the first receiver, the second receiver, the evaporator, and the exhaust line are connected to provide a refrigerant fluid flow path.

A refrigeration system is provided that can be used to cool a plant growth chamber. The refrigeration system can include a compressor to compress refrigerant, a condenser to condense refrigerant, a compressed refrigerant line running from the compressor to the condenser, a throttling device, a condensed refrigerant line running from the condenser to the throttling device, an evaporator to evaporate liquid refrigerant, a throttled refrigerant line running from the throttling device to the evaporator, an evaporated refrigerant line running from the evaporator to the compressor, and, a by-pass line connected to the compressed refrigerant line after the condenser and running to the evaporator. A hot gas proportional valve provided inline of the by-pass line and a liquid proportional valve provided inline of the condensed refrigerant line are used to control the flow of refrigerant through the by-pass line.

Cooling devices for use with electric submersible pump motors include a refrigerator attached to the end of the electric submersible pump motor with the evaporator heat exchanger accepting all or a portion of the heat load from the motor. The cooling device can be a self-contained bolt-on unit, so that minimal design changes to existing motors are required.