A system for killing pests in an affected area of a structure comprises a heat pump unit placed within an affected area and a thermostatic control. The heat pump unit is configured to receive a flow of water from a faucet, and generate heated air by transferring heat from the flow of water, the heated air being emitted into the affected area in order to raise the temperature of the affected area to a target temperature greater than 120 degrees Fahrenheit. The thermostatic control is configured to monitor a temperature of a flow of water as it is received by the heat pump, monitor a temperature of air, and automatically cease operation of the heat pump when the temperature of the flow of water is above a predefined limit.

A device and a method for converting low temperature thermal energy into high temperature thermal energy using mechanical energy with a rotor for a working medium passing through a closed cycle. The rotor has a compressor unit with compression channels and an expansion unit with expansion channels, and has heat exchangers for exchanging heat between the working medium and a heat exchange medium. The device has an impeller which can be rotated relative to the rotor. The impeller is arranged between supply channels 9 which conduct the flow of the working medium in the heat pump and at least one rotor discharge channel which discharges the flow of the working medium in the heat pump. The supply channels have outlet sections which extend up to a point directly upstream of an inlet opening of the impeller such that flows of the working medium are conducted out of the supply channels.

A device and a method for converting low temperature thermal energy into high temperature thermal energy using mechanical energy with a rotor for a working medium passing through a closed cycle. The rotor has a compressor unit with compression channels and an expansion unit with expansion channels, and has heat exchangers for exchanging heat between the working medium and a heat exchange medium. The device has an impeller which can be rotated relative to the rotor. The impeller is arranged between supply channels 9 which conduct the flow of the working medium in the heat pump and at least one rotor discharge channel which discharges the flow of the working medium in the heat pump. The supply channels have outlet sections which extend up to a point directly upstream of an inlet opening of the impeller such that flows of the working medium are conducted out of the supply channels.

Apparatuses and methods for conditioning a liquid stream with a liquid dispensing system associated with a refrigerator, preparing an enhanced beverage using one or more of the individually conditioned liquid streams and a liquid enhancement device and minimizing the potential for back contamination of the liquid dispensing system are provided.

A system and method of using a source of low-pressure refrigerant for a cryotherapy procedure. The system may generally include a fluid reservoir and a fluid flow path in thermal exchange with the fluid reservoir, the fluid flow path including a thermal exchange device in thermal exchange with the fluid reservoir, a compressor in fluid communication with the thermal exchange device, a condenser, a reversing valve located between the compressor and the condenser, and an expansion valve located between the condenser and the thermal exchange device. The method may include transferring a low-pressure refrigerant to a first fluid reservoir, reducing the temperature of the refrigerant within the first fluid reservoir, increasing the temperature of the refrigerant within the first fluid reservoir, and transferring the pressurized refrigerant from the first fluid reservoir to a second fluid reservoir.

Rotary heat exchangers can include a ride-along compressor, at least a portion of which can be rotated along with the heat exchanger. By rotating at least a portion of the compressor along with the heat exchanger, a sealed fluid circuit containing a two-phase working fluid can be provided. A rotary heat pump or heat engine can include an evaporator and a condenser in the form of back-to-back centrifugal fans. The centrifugal fan blades or other portions of the evaporator and condenser may include internal cavities where the working fluid undergoes a phase change.

Rotary heat exchangers can include a ride-along compressor, at least a portion of which can be rotated along with the heat exchanger. By rotating at least a portion of the compressor along with the heat exchanger, a sealed fluid circuit containing a two-phase working fluid can be provided. A rotary heat pump or heat engine can include an evaporator and a condenser in the form of back-to-back centrifugal fans. The centrifugal fan blades or other portions of the evaporator and condenser may include internal cavities where the working fluid undergoes a phase change.

A refrigerant circuit unit including: a refrigerant circuit including a compressor, a heater, an expansion mechanism, a cooler, and a channel module in which at least a part of a refrigerant channel that distributes a refrigerant circulated in the compressor, the heater, the expansion mechanism, and the cooler, is integrally formed; and a support plate that supports the refrigerant circuit. The channel module includes a high-pressure side region provided with a high-pressure channel through which a high-pressure refrigerant flows, a low-pressure side region provided with a low-pressure channel through which a low-pressure refrigerant flows, and a partition provided between the high-pressure side region and the low-pressure side region to separate the high-pressure side region and the low-pressure side region.

Rotor, in particular a rotary heat pump, including a rotational axis, a number of compression ducts in which a working medium, in particular a gas, preferably a noble gas, is guided away from the rotational axis to increase the pressure due to the centrifugal acceleration, a number of expansion ducts in which the working medium is guided towards the rotational axis to reduce the pressure due to the centrifugal acceleration, a number of first heat transfer ducts for the working medium and a number of second heat transfer ducts for a heat transfer medium, in particular a liquid, so that heat is transferred between the working medium flowing in the first heat transfer ducts and the heat transfer medium flowing in the second heat transfer ducts, a number of first (10) and second rotor plates including the compression ducts, the expansion ducts, the first heat transfer ducts for the working medium and the second heat transfer ducts for the heat transfer medium, wherein the first and second rotor plates are connected to each other along their main planes of extension.

The present invention discloses systems, devices, and methods for symphasic closed-cycle heat exchange, applicable to processes for extraction of compounds from biological materials, such as cannabis and other plants; said systems, devices, and methods incorporating a closed-cycle refrigeration circuit to provide energy savings and other improvements over existing single loop closed-cycle extraction processes.