In one aspect, temperature control sheets are described herein. In some embodiments, such a sheet comprises a first film; a second film facing opposition to the first film; and a phase change material (PCM) component disposed in between the first film and the second film. The sheet comprises one or more PCM-containing zones in a lateral plane of the sheet and also comprises one or more PCM-free fold or cut zones or lines in the lateral plane of the sheet.

Various aspects and embodiments of a temperature control cart (100) are disclosed. The temperature control cart (100) comprises a top portion (116) with one or more wells (202), wherein the one or more wells (202) is operable to receive one or more pans (102). The wells (202) are configured to hold pans (102), wherein the pans (102) often contain a payload, such as food or medicine, that requires temperature control. Further, the top portion (116) is disposed in a tank (108) that contains phase change material (PCM). In another aspect, a method for controlling temperature of a payload is disclosed. A temperature control cart (100) is further provided with one or more heat exchangers. Wherein the one or more heat exchangers circulate a heat exchange fluid, thereby heating or cooling the PCM disposed in the tank (108) of the temperature control cart (100) to above or below a transition temperature of the PCM.

In one aspect, a portable-smart refrigerator includes a lid assembly comprising a lid coupled with a lid bottom cover for fastening the lid assembly to an internal upper portion of a Polypropylene chamber assembly. The portable-smart refrigerator includes a grill assembly comprising a top base, a pump bracket, a middle base, a bottom base. The top based hold the pump bracket. the top base is coupled with the middle base. The middle base is coupled with the bottom base. The portable-smart refrigerator includes a cooling-coil assembly comprising a feeding tube, a top elbow, a bottom tube, a cooling coil. The top elbow is installed between two lengths of tubing/pipe to enable a change of direction and couples the feeding tube with the cooling coil. The cooling coil is coupled with the bottom tube. The portable-smart refrigerator includes the phase change material (PCM) chamber assembly that holds the cooling coil. The polypropylene chamber assembly is placed within an outer cylinder. A bottom portion of the Polypropylene chamber assembly is coupled with the grill assembly. A sleeve assembly forming a portion of the outer cylinder.

The invention provides a heat transfer system and a method for operating a heat transfer system in which a heat transfer fluid comprising or consisting of a phase change material (PCM) circulates in a cooling circuit. A combined state of phase value of the heat transfer fluid is determined based on information obtained from a sensor system including a temperature sensor and an electrical resistance sensor realized as two separate sensors or as one combined temperature-and-electrical-resistance sensor. The system and method can securely and effectively prevent a possible blocking of the channels of an indoor heat exchanger of the system by solidified PCM and an unwanted deposition of solid PCM (crystals) on heat transfer surfaces of the indoor heat exchanger.

An object is to provide a storage container including latent heat storage materials that provide a high cold insulation effect. A storage container 401 has an electric cooling function and stores an object. The storage container 401 includes at least one storage chamber 100 that stores the object; a first latent heat storage material A that is disposed in the storage chamber 100 and has a predetermined phase change temperature; and a second latent heat storage material B that is disposed in the storage chamber 100 and has a phase change temperature higher than the phase change temperature of the first latent heat storage material A.

A refrigerator to be installed in a storage space defined by a wall of an object includes a contact mechanism so that the refrigerator makes contact with the wall, and thus the refrigerator can be installed.

A system for cooling a storage area of a vehicle includes one or more eutectic plates (102) for cooling the storage area (101); a refrigeration system (103) configured to cool the one or more eutectic plates (102); an electrical system (106) configured to receive electrical power from a mains power supply and supply electrical power to the refrigeration system (103); a variable displacement hydraulic pump (113) having an input shaft for being driven by an engine (112) of the vehicle (100); and a generator (107) configured to receive hydraulic fluid from the hydraulic pump (113), generate electrical power in response thereto and supply the electrical power to the refrigeration system (103); the hydraulic pump (113) is configured to reduce the volume of hydraulic fluid that it supplies to the generator (107) for each rotation of the input shaft, as the rotational speed of the input shaft increases.

A refrigerator includes a temperature-controlled drawer within a fresh food compartment. The drawer includes a temperature dampening member in thermal communication with a freezing air source and an interior or the drawer. The member is made of a thermally conductive material. In use, heat is conducted away from the interior of the drawer through the temperature dampening member in communication with the freezing air source. Thus, freezing of a foodstuff within the drawer is minimized or prevented, a temperature variance within the drawer is minimized, and humidity within the drawer is not adversely affected by dry freezing air source.

Cold storage unit apparatuses designed for high energy efficiency are provided, which may include: a refrigeration system; a box enclosing an interior space, the box formed by a plurality of insulated sides; an entry into the interior space including a plurality of openable barriers facilitating preventing entry of heat or moisture into the interior space; and a power system connected to the refrigeration system, the power system facilitating independent operation of the refrigeration system when not connected to a power grid, and further facilitating a net energy use of zero from a power grid when connected to a power grid. Cold storage units may further include systems for using the refrigerant of the refrigeration system to defrost one or more components of the cold storage unit, and for using the refrigerant to facilitate maintaining a desired internal temperature of the interior space of the cold storage unit.

A refrigerator includes a cabinet, a first inner case that defines a freezing compartment, a second inner case that defines a refrigerating compartment, a thermal siphon unit that is configured to carry a working fluid for heat transfer and that has a closed loop shape that includes a first part arranged at an outer side of the first inner case and a second part arranged at an outer side of the second inner case, and a cool air storage unit arranged in a space partitioned in the first inner case. The cool air storage unit is configured to accommodate cool air of the freezing compartment and transfer the cool air to the first part of the thermal siphon unit arranged outside of the first inner case.