An evaporative cooling system having a heat conducting device, the heat conducting device being capable of coupling to a heating element to be cooled and the heat conducting device comprising a first medium; a heat dissipating device having one or more heat dissipating outlets; and an evaporator disposed in the heat dissipating device and arranged in relation to the heat conducting device that is arranged at least partially outside the heat dissipating device. The heat dissipating device comprises a second medium, and the evaporator is configured to receive heat from the heat conducting device to heat the second medium of the heat dissipating device and discharge the heat from the one or more heat dissipating outlets of the heat dissipating device.

The cooling systems and methods of the present disclosure involve modular fluid coolers and chillers configured for optimal power and water use based on environmental conditions and client requirements. The fluid coolers include wet media, a first fluid circuit for distributing fluid across wet media, an air to fluid heat exchanger, and an air to refrigerant heat exchanger. The chillers, which are fluidly coupled to the fluid coolers via pipe cages, include a second fluid circuit in fluid communication with the air to fluid heat exchanger and a refrigerant circuit in thermal communication with the second fluid circuit and in fluid communication with the air to refrigerant heat exchanger. Pipe cages are coupled together to allow for expansion of the cooling system when additional cooling capacity is needed. The fluid coolers and chillers are configured to selectively operate in wet or dry free cooling mode, partial free cooling mode, or mechanical cooling mode.

A refrigerated system includes a heat recovery system defining a heat recovery fluid flow path. The heat recovery system includes an ejector having a primary inlet and a secondary inlet and a first heat exchanger within which heat is transferred between a heat recovery fluid and a secondary fluid. The first heat exchanger is located upstream from the primary inlet of the ejector. A second heat exchanger within which heat is transferred from a heat transfer fluid to the heat recovery fluid is upstream from the secondary inlet of the ejector. At least one recovery heat exchanger is positioned along the heat recovery fluid flow path directly upstream from the first heat exchanger.

A system includes a heat exchanger mounted to the brackets and receiving cryogen, the heat exchanger having a vertical inlet coupled in parallel to a plurality of equal size horizontal tubes each traversing a width of the heat exchanger and further coupled in parallel to a vertical outlet pipe with an outlet diameter at least twice an inlet tube diameter; a temperature sensor; a thermostat that monitors the temperature sensor and maintains a predetermined temperature set point by communicating with a solenoid valve coupled to the heat exchanger; an exhaust line coupled to the outlet pipe that expels exhaust gas outside the enclosed facility; multiple fans attached to the heat exchanger; and a fail-safe oxygen sensor to protect a biological object in the enclosed facility.

A refrigeration arrangement for traction vehicles includes a first closed circuit configured as a compression refrigeration machine containing a refrigerant as a first carrier medium, evaporator and condenser. The evaporator absorbs heat into the first circuit. The condenser transfers heat from the first circuit. The first circuit is coupled, via the evaporator, to a closed second circuit containing a liquid second carrier medium for heat transport. The second circuit, for cooling, takes heat and transfers it to the second carrier medium. The heat is conveyed, by the second carrier medium, to the evaporator for transfer to the first circuit. The first circuit is coupled, via the condenser, to a closed third circuit containing a liquid third carrier medium for heat transport. The third circuit causes heat from the first circuit, transferred into the third circuit by the condenser, to be transferred to surroundings with heat from traction systems.

Various embodiments that pertain to cooling of a laser set are described. In one example, the lasers can be a set of laser diodes. A laser diode cooling system can create a vacuum environment that causes a coolant to be below atmospheric pressure. The coolant can be water supplied by an exchangeable tank. When the tank is empty, the tank can be replaced with a new tank.

A refrigeration device includes: a refrigerator; a heat pipe that includes a condensation unit connected to the refrigerator and adapted to condense a refrigerant, includes an evaporation unit connected to a storage chamber and adapted to evaporate the refrigerant, and includes a piping for circulating the refrigerant between the condensation unit and the evaporation unit; a heat pipe temperature sensor that detects a temperature of the heat pipe; and a control unit that controls driving of the refrigerator based on a result of detection by the heat pipe temperature sensor. The control unit controls the refrigerator so that the temperature of the heat pipe does not fall below a standard boiling temperature of the refrigerant.

A system and method of controlling temperature of a medium by refrigerant vaporization, or working gas condensation, or a combination of both, the system including a container, at least one a working gas reservoir having at least one reservoir section that includes a wall with an exterior surface structured to be thermally coupled with a volume of the medium in the container and to provide a volume of medium thermal coverage in the container, a condensation apparatus to provide regulation of working gas condensation in the reservoir, whereby the working gas reservoir forms a vapor space in each of the at least one reservoir section in response to receiving the working gas and to the condensation apparatus regulation of condensation to enable working gas condensation at or near a selected temperature of the volume of medium in the container that is thermally coupled to the respective reservoir section.

A refrigeration and/or heat transfer device includes a heating section and cooling section, a release member, and a one-way check valve affixed together in a continuous loop so working fluid may flow in one direction therein. The heating section absorbs heat and transfers such heat to the working fluid, thereby heating, expanding and increasing pressure upon the working fluid therein. The pressurized working fluid is released in a regulated manner from the heating section to the cooling section, thereby carrying the heat away. The released working fluid cools and transfers its heat to the surroundings within the cooling section. As released working fluid enters the cooling section, such fluid displaces already cooled working fluid, pushing such fluid through the one-way check valve back into the heating section to absorb heat. The working fluid may undergo a phase change or remain in a single phase throughout to enhance heat transfer.

A helium circulation system includes a refrigerator configured to cool a gas refrigerant into a liquid refrigerant; a first path configured to feed the liquid refrigerant from the refrigerator to a Dewar; a second path configured to feed the gas refrigerant from the Dewar to a vaporized gas collector via the refrigerator; a third path configured to feed the gas refrigerant from the vaporized gas collector to the refrigerator; a fourth path configured to feed the gas refrigerant from the Dewar to the vaporized gas collector without via the refrigerator; and a control unit configured to feed the liquid refrigerant through the first path while feeding the gas refrigerant through the third path when the refrigerator is driven, and feed the gas refrigerant through the second path while feeding the gas refrigerant the fourth path, when the refrigerator is stopped.