The invention provides a portable cooling vented apparatus, comprising: an array made of one or more thermoelectric cooler(s), each thermoelectric cooler (TEC) having a cold side and a hot side, the cumulative cold sides and the cumulative hot sides of all the thermoelectric cooler(s) define cold and hot sides of the array, respectively; one or more heatsinks at the hot side of the array; and at least one reservoir configured to supply liquid to the heatsink(s) with the aid of one or more liquid channel(s) connected to said reservoir and installed in the interior of the cooling apparatus in proximity to said heatsink(s); wherein the apparatus is open to the surroundings and is characterized in that the one or more liquid channels is (are) in the form of a narrow piece of wettable material in fluid communication with, or emerging from, the liquid reservoir and in contact with the heatsink.

An ambient temperature barocaloric refrigerating machine has a high-precision high-pressure electric injection pump, a barocaloric element, heat exchange fluid, a cold end heat exchanger and a hot end heat exchanger. The phenomena of heat release after pressurization and heat absorption after depressurization are generated due to phase change through a barocaloric medium under the action of the high-pressure injection pump. The heat exchange fluid flows back and forth between the barocaloric refrigerators and exchanges heat and cold. The high-precision high-pressure electric injection pump provides pressure for the barocaloric refrigeration cycle. The pressurization oil is also used as the heat exchange fluid and in direct contact with a sample. Pressure-driven heat and cold are directly brought into the hot end heat exchanger and the cold end heat exchanger to complete the cycle, thereby reducing the heat loss.

A chiller system includes a compressor, a condenser, an expansion device, and an evaporator operably coupled to form a closed fluid loop having a fluid circulating therethrough. A flow of a cooling fluid is arranged in a heat transfer relationship with the fluid at the condenser. An energy transfer device is located downstream from the condenser relative to the flow of the cooling fluid. The energy transfer device is arranged in fluid communication with a third fluid and at least a portion of the heat from the fluid is transferred to the third fluid at the energy transfer device.