A test chamber for conditioning air has a temperature-insulated test space sealable against an environment for receiving test materials and a temperature control device for controlling the temperature of the test space, a temperature ranging from 20 C. to +180 C. in temperature being able to be realized within the test space by means of the temperature control device, said temperature control device comprising a cooling device having a cooling cycle having a refrigerant, a heat transmitter, a compressor, a condenser and an expanding element, the cooling cycle comprising an internal heat transmitter, the internal heat transmitter being connected to a high-pressure side of the cooling cycle upstream of the expanding element and downstream of the condenser in a flow direction, said refrigerant being able to cooled by means of the internal heat transmitter which is coupled to an adjustable supplementary refrigeration of the cooling device.

Systems and methods are provided for data center cooling by vaporizing fuel using data center waste heat. The systems include, for instance, an electricity-generating assembly, a liquid fuel storage, and a heat transfer system. The electricity-generating assembly generates electricity from a fuel vapor for supply to the data center. The liquid fuel storage is coupled to supply the fuel vapor, and the heat transfer system is associated with the data center and the liquid fuel storage. In an operational mode, the heat transfer system transfers the data center waste heat to the liquid fuel storage to facilitate vaporization of liquid fuel to produce the fuel vapor for supply to the electricity-generating assembly. The system may be implemented with the liquid fuel storage and heat transfer system being the primary fuel vapor source, or a back-up fuel vapor source.

Systems and methods are provided for data center cooling by vaporizing fuel using data center waste heat. The systems include, for instance, an electricity-generating assembly, a liquid fuel storage, and a heat transfer system. The electricity-generating assembly generates electricity from a fuel vapor for supply to the data center. The liquid fuel storage is coupled to supply the fuel vapor, and the heat transfer system is associated with the data center and the liquid fuel storage. In an operational mode, the heat transfer system transfers the data center waste heat to the liquid fuel storage to facilitate vaporization of liquid fuel to produce the fuel vapor for supply to the electricity-generating assembly. The system may be implemented with the liquid fuel storage and heat transfer system being the primary fuel vapor source, or a back-up fuel vapor source.

The present disclosure provides a method of collecting, including condensing, vapour of a polar fluid inside a liquid that is subjected to continuous flow in a process system, the liquid having a low vapour pressure (i.e. non-volatile) and being a non-polar liquid. The collection of the vapour, by condensation, occurs via four transition steps: (1) vapour (e.g. vapour of water) transferring sensible heat to the liquid (e.g. oil), (2) bubbles containing vapour collapse and become water in hot oil, (3) dissolved vapour liquefies through heat removal at elevated temperatures, and (4) oil and water are separated due to the difference in polarity between the polar fluid and the non-volatile non-polar liquid. The present method converts low grade (i.e. low temperature) waste heat into high grade heat source suitable for efficient heat rejection or heat recovery applications. An apparatus for collecting vapour of a polar fluid in a non-volatile non-polar liquid is also provided.

The present disclosure provides a method of collecting, including condensing, vapour of a polar fluid inside a liquid that is subjected to continuous flow in a process system, the liquid having a low vapour pressure (i.e. non-volatile) and being a non-polar liquid. The collection of the vapour, by condensation, occurs via four transition steps: (1) vapour (e.g. vapour of water) transferring sensible heat to the liquid (e.g. oil), (2) bubbles containing vapour collapse and become water in hot oil, (3) dissolved vapour liquefies through heat removal at elevated temperatures, and (4) oil and water are separated due to the difference in polarity between the polar fluid and the non-volatile non-polar liquid. The present method converts low grade (i.e. low temperature) waste heat into high grade heat source suitable for efficient heat rejection or heat recovery applications. An apparatus for collecting vapour of a polar fluid in a non-volatile non-polar liquid is also provided.

Systems and methods are provided for data center cooling by vaporizing fuel using data center waste heat. The systems include, for instance, an electricity-generating assembly, a liquid fuel storage, and a heat transfer system. The electricity-generating assembly generates electricity from a fuel vapor for supply to the data center. The liquid fuel storage is coupled to supply the fuel vapor, and the heat transfer system is associated with the data center and the liquid fuel storage. In an operational mode, the heat transfer system transfers the data center waste heat to the liquid fuel storage to facilitate vaporization of liquid fuel to produce the fuel vapor for supply to the electricity-generating assembly. The system may be implemented with the liquid fuel storage and heat transfer system being the primary fuel vapor source, or a back-up fuel vapor source.

Systems and methods are provided for data center cooling by vaporizing fuel using data center waste heat. The systems include, for instance, an electricity-generating assembly, a liquid fuel storage, and a heat transfer system. The electricity-generating assembly generates electricity from a fuel vapor for supply to the data center. The liquid fuel storage is coupled to supply the fuel vapor, and the heat transfer system is associated with the data center and the liquid fuel storage. In an operational mode, the heat transfer system transfers the data center waste heat to the liquid fuel storage to facilitate vaporization of liquid fuel to produce the fuel vapor for supply to the electricity-generating assembly. The system may be implemented with the liquid fuel storage and heat transfer system being the primary fuel vapor source, or a back-up fuel vapor source.

Disclosed is a sub-Kelvin temperature zone refrigeration mechanism. The sub-Kelvin temperature zone refrigeration mechanism includes a pulse tube refrigeration unit, first pre-cooling heat exchangers, a throttling refrigeration unit, second pre-cooling heat exchangers, an adsorption refrigeration unit, a third pre-cooling heat exchanger and a dilution refrigeration unit. The pulse tube refrigeration unit includes a pulse tube refrigeration part. The throttling refrigeration unit includes a throttling refrigeration part, and the throttling refrigeration part is connected with the adsorption refrigeration unit through the second pre-cooling heat exchangers so as to pre-cool the adsorption refrigeration unit. The adsorption refrigeration unit includes an adsorption refrigeration part, and the adsorption refrigeration part is connected with the dilution refrigeration unit through the third pre-cooling heat exchanger. The dilution refrigeration unit includes a dilution refrigeration part, and the dilution refrigeration part is a refrigeration terminal of the sub-Kelvin temperature zone refrigeration mechanism.

The present application pertains to processes and systems for enhanced heat transfer. In some embodiments a process is described for removing a portion of a chemical from a heat transfer loop comprising a heat transfer fluid. The process may comprise adding a solvent to the heat transfer fluid in the heat transfer loop; removing at least a portion of the heat transfer fluid from the heat transfer loop; separating said removed heat transfer fluid into a permeate and a retentate using a membrane; and adding at least a portion of the permeate to the heat transfer fluid in the heat transfer loop.

The invention relates to a process for dehumidifying a moist gas mixture and to the absorption medium used in the process. The invention further relates to an apparatus for dehumidifying a moist gas mixture and to the use of said apparatus in the process according to the invention.