The present invention provides a phase change cold storage device having vortex coiled tubes, which falls within the technical field of low temperatures and comprises an inlet tube, an outlet tube, a tube plate, a baffle plate, vortex coiled tubes, a cylinder body, a central tube, a support frame, a seal head and a saddle, wherein the tube plate is fixedly connected to the cylinder body, a lower end position and a central position of the tube plate are respectively perforated, the inlet tube and the outlet tube are respectively connected to a lower end position and a central position of the tube plate, the baffle plate and the vortex coiled tubes are mounted on the central tube, one end of the central tube is fixed on the tube plate, and the other end is inserted through the support frame connected to the cylinder body, the head is connected to the cylinder, provided on the opposite side of the inlet and outlet tubes, and the saddle is provided below the cylinder. The present invention has a compact structure, is easy to manufacture, and easily enhances heat transfer with vortex coiled tubes, and at the same time, has a good cold storage effect and a wide application range.

A structural body includes a refrigerant between a first plate and a second plate. A circulation structural part between the first and second plates includes a reservoir portion provided on a first plate side. In the circulation structural part, the refrigerant from the reservoir portion which has evaporated due to heat of the first plate side reaches a second plate side, condenses on the second plate side and is returned to the reservoir portion again. A temperature sensitive mechanism is in a first state when a temperature of the first plate side is equal to or higher than a predetermined temperature to allow refrigerant circulation, and is in a second state different from the first state when the temperature is lower than the predetermined temperature to prohibit the refrigerant circulation.

The invention relates to a process for cooling air-conditioning water used to air-condition a hospital building, comprising the steps of: (a) providing nitrogen in liquid form (LIN); (b) providing oxygen in liquid form (LOX); (c) providing air-conditioning water to be cooled; and (d) performing a heat exchange (4) between the air-conditioning water to be cooled and the nitrogen in liquid form (LIN) and/or the oxygen so as to cool the air-conditioning water and to vaporize the nitrogen and/or the oxygen and obtain nitrogen in gaseous form (GAN) and/or oxygen in gaseous form (GOX).

A system and method utilize one or more fans each having fan blades. The fan blades have a desiccant material on an outer surface. The desiccant material is operable to adsorb airborne moisture in an ambient airflow and desorb moisture in a heated airflow. The fan blades are operable to drive one or both of the ambient airflow and heated airflow via rotation of the fan.

Embodiments provide a thermal management system for supplying stored energy for the purpose of cooling by direct mixing of a common working fluid within a thermal store in which the cooling is realised by phase via latent heat phase change of an ice slurry of the working fluid.

District energy systems, also known as district heating and cooling networks, are utilized to provide distributed heating and cooling through an infrastructure of pipes and connectors from source points to destination addresses. The application of PCM within the network of pipes and connectors and with the surrounding environment improves the thermal regulation goals of transferring thermal energy in fluid form from source to destination, often times over great distances and through varying environmental conditions.

A climate-control system may include a first working fluid circuit, a second working fluid circuit and a storage tank. The first working fluid circuit includes a first compressor and a first heat exchanger in fluid communication with the first compressor. The second working fluid circuit includes a second compressor and a second heat exchanger in fluid communication with the second compressor. The storage tank contains a phase-change material. The first working fluid circuit and the second working fluid circuit are thermally coupled with the phase-change material contained in the storage tank.

The disclosure relates to a heating and/or cooling system having an energy conversion device included in a refrigerant circuit and having reducing means for reducing and/or removing solidified phase change material from a component of a heat transfer circuit, wherein the reducing means are driven by energy provided from the energy conversion device. The disclosure also relates to a corresponding method for reducing or removing solidified phase change material.

Secondary loop air conditioning and heat pump systems include a reservoir with a capsule holding a phase change material.

Disclosed is a building system for reducing energy consumption. The building system includes an exterior wall layer disposed on an exterior wall of building walls, a circulation pipe disposed inside the exterior wall layer and through which a heating medium for absorbing heat caused by solar radiant energy applied to the exterior wall layer flows, and a thermal energy storage connected to the circulation pipe and configured to store the heat transmitted by the heating medium.