A kitchen air-conditioning system comprises an air-conditioning assembly (1) and a range hood assembly (2). The air-conditioning assembly (1) comprises a compressor (11), an evaporator (12) and a condenser (13) which are connected with each other through a plurality of refrigerating medium pipes (14); the condenser (13) and the range hood assembly (2) are connected through a secondary refrigerant pipe (3), a heat dissipation unit (4) in communication with the secondary refrigerant pipe (3) is disposed on the range hood assembly (2). The secondary refrigerant pipe (3) on the condenser has a secondary refrigerant inlet and a secondary refrigerant outlet, and the secondary refrigerant in the secondary refrigerant pipe (3) can exchange heat with the refrigerating medium in the condenser (13), and the heat dissipation units (4) connected to the secondary refrigerant pipe (3) can quickly take away heat generated by the condenser.

An intelligent heat pump system having a dual heat exchanger structure includes a heat source side heat exchange member, a heat pump, an external expansion valve, a refrigerant-water heat exchanger, a heat storage tank, and a target side end unit. A refrigerant flows through the heat pump, the refrigerant-water heat exchanger, and the target side end unit, and in a non-air-conditioning state for the target site, circulates between the heat pump and the refrigerant-water heat exchanger, so that cooled or heated water is stored in the heat storage tank. In an air-conditioning state for the target site, the heat pump and the heat storage tank supply cooling and heating to the target site, so that the power consumption for normal operation is reduced in order to improve the operation efficiency of the intelligent heat pump system.

Heated cabinets suitable for storing temperature-sensitive products, systems including the same, and methods of using such systems. Such a cabinet includes walls that define a cavity therebetween, a door adapted to selectively enclose the cavity and provide access to the cavity, at least one heating element embedded within one or more of the walls or mounted to interior surfaces of one or more of the walls, and a source of electrical power for the heating element.

The invention provides a personal micro-climate system that reduces the energy requirement to keep a person cool by providing a personal air-conditioned space specially for bed-ridden patients. A dome is provided to create a personal space that just cools the area where the patient is at avoiding wasting energy in cooling the room's floor, ceiling, walls and empty space. The cooling system can be energized through solar power, deep cycle battery packs, small power plant or through a combination thereof. The system allows for the movement of an automatic or semi-automatic bed. A transparent cover is stretched over a frame structure to allow for maximum visibility from the inside out and vice versa. The system allows ease of opening an attendant window for patient care or to help a bedridden patient in an emergency. Breathing tubes, feeding tubes, IV lines, sensors and cables can be fed into the dome through openings between a mattress cover and the micro-climate dome. The personal microclimate system serves as a positive or negative personal isolation chamber provided with high-efficiency particulate air filters and ultraviolet germicidal irradiation systems. An anteroom can be added next to the micro-climate dome and/or a secondary larger structure may be added to enclose the micro-climate dome.

A heating, ventilation, and air-conditioning (“HVAC”) system for use with a refrigerant. The HVAC system includes a compressor, a condenser, an expansion device, an evaporator, and a separator. The compressor is operable to compress the refrigerant. The condenser is positioned downstream of the compressor and operable to condense the refrigerant. The expansion device is positioned downstream of the condenser and operable to reduce a pressure of the refrigerant flowing therethrough. The evaporator is positioned downstream of the expansion device and operable to vaporize the refrigerant from the expansion device. The separator is positioned downstream of the expansion device and operable to separate the refrigerant into liquid refrigerant and gaseous refrigerant. The gaseous refrigerant from the separator and the liquid refrigerant from the separator are combined prior to being compressed by the compressor.

A dehumidifier/cooling apparatus for use in a room having an elevated temperature and/or humidity is provided which utilizes the natural coolness of tap water to condense water vapor from the air or merely cool the air. The tap water line is diverted into a heat exchanger upstream of a hot water heater to dehumidify and/or cool the air in the room the air and remove the latent heat given off during condensation to cool and/or dehumidify the room air and to pre-heat the water entering the hot water heater. An air moving device powered solely by water moving through the tap water line directs a flow of air through the heat exchanger.

An apparatus and method to selectively create a heat transfer effect and sensation of cooling within bedding on a mattress. A programmable application is accessible on a wireless network and is programmed to provide appropriate settings to attain changes over time of a space within bedding that pertain to at least one of heating the space and realizing a cooling sensation within the space. A wireless receiver is configured to receive commands in a wireless manner that are indicative of the appropriate settings provided by the programmable application to effect changes over time of the space within the bedding attributed to heat transfer with respect to the at least one of heating the space and realizing a cooling sensation within the space. The heat transfer occurs as a result of fluid flow either within a mattress or within space in bedding over the mattress.

Proposed a gas heat-pump system including: a compressor compressing refrigerant and discharging the compressed refrigerant; an engine providing a drive force to the compressor; a radiator that cools coolant which is heated while passing through the engine; an indoor heat exchanger causing heat exchange to occur between indoor air and the refrigerant and thus cooling or heating an indoor space; an outdoor heat exchanger condensing the refrigerant; a four-way valve switching a flow direction of the refrigerant in such a manner that the refrigerant discharged from the compressor flows to the outdoor heat exchanger in a cooling operation mode and flows to the indoor heat exchanger in a heating operation mode; and a hot-water storage tank causing the heat exchange to occur between stored water and the refrigerant, and thus cooling the refrigerant in the cooling operation mode and heating the refrigerant in the heating operation mode.

A system, an arrangement and method for heating and cooling of several building spaces-or buildings includes two or more building spaces or buildings, and a secondary thermal network including a supply line and a return line. The arrangement further comprises two or more building connections arranged parallel to each other and between the supply line and provided in connection with the two or more building spaces or buildings, a ground hole and a geothermal heat exchanger provided to the ground hole and arranged in connection with the secondary thermal network.

An apparatus for heating water has a tank for storing water and an air conditioning system that defines a refrigerant flow path through which refrigerant flows. The refrigerant flow path passes through the heat exchanger so that refrigerant heat is contributed to the tank. A control system controls operation of the water heating apparatus.