In a system for air-conditioning interior spaces of a building which are connected via at least one exhaust air duct, one or more interior spaces are provided with an air-conditioning unit which has a inlet line of outdoor air, which supplies inlet air or circulating air to the interior space or spaces, and which is connected to a fluid circuit of a heat pump. The exhaust air duct and a further fluid circuit of the heat pump are connected to an energy store installed outside the building, wherein the energy store is connected to a heat exchanger in a liquid reservoir for energy transfer and for energy storage, which is connected via the heat exchanger to another fluid circuit of the heat pump, the exhaust air being directed into the liquid reservoir via a heat exchanger.

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.

A screen cover for attaching to an open end of a conduit of a water heater is provided. The screen cover includes a first diametric portion having a first diameter and a second diametric portion having a second diameter. The first diameter is greater than the second diameter. The first and second diametric portions are coaxially aligned and configured to allow flow of air or gas therethrough. The screen cover includes a shoulder portion defined between the first diametric portion and the second diametric portion. The screen cover further includes a mesh disposed at a first opening of the first diametric portion. The mesh prevents entry of external objects into the water heater through the open end of the conduit.

Air recirculation systems for heat pumps are disclosed. The air recirculation systems include a heat pump subsystem and a recirculation subsystem. The recirculation subsystem can include one or more arms that direct cool, dehumidified air flowing from the heat pump subsystems back to air inlets. The recirculation subsystems can transition from open to closed configurations either manually or via motors. The air recirculation systems can include a controller that outputs a control signal to the motors to open or close the recirculation subsystems. The control signals can be based on temperature data, current data, and the like.

An HVAC system is provided. Embodiments of the present disclosure generally relate to heat exchangers having tubing with a reduced diameter compared to traditional systems. In one embodiment, a ducted HVAC system comprises an outdoor heat exchanger with tubing that has an outer diameter of eight millimeters (8 mm) or less and an indoor heat exchanger with tubing that has an outer diameter of nine millimeters (9 mm) or less. Additional systems, devices, and methods are also disclosed.

Provided is a tower-type outdoor air cleaning apparatus that is disposed outside a facility that performs air cleaning, cleans outside air, and supplies the cleaned air, including: a tower body unit that is disposed away from the facility on one side of the facility, is provided in a tower type with a double-wall structure, in which fomentation is performed inward, air is filtered and suctioned, and is exhausted; an air supply unit that is provided above the tower body unit, in which air is supplied through an upper portion thereof and air flows in through a side portion at a plurality of locations of an outer circumference thereof and is mixed with the air supplied through the upper portion; an air ventilation filter unit that is disposed inside the air supply unit and the tower body unit, filters the mixed air supplied from the air supply unit to be supplied to the facility connected thereto, and exhausts the air circulated in the facility to the outside; a fomentation facility unit that is disposed inside the tower body unit and generates heat and electricity using solar energy for use in fomentation; and a control unit that is connected to the air ventilation filter unit and the fomentation facility unit to control the amount of air supplied by the air supply unit through the air ventilation filter unit, and controls production and transfer of heat and electricity using solar energy in the fomentation facility unit.

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 vehicle and building integrated air conditioning system which may communicate internal spaces with each other to integrally perform air conditioning when a vehicle is docked to a building, may include a vehicle which includes a control unit configured of controlling a vehicle control unit configured of controlling a vehicle air conditioning device, a building which includes a building control unit configured of controlling a building air conditioning device, is provided with a station to which the vehicle is docked, and communicates an interior of the building with the vehicle to perform air conditioning when the vehicle is docked to the station, and an integrated control portion which is configured to allow the vehicle control unit or the building control unit to integrally control the vehicle air conditioning device and the building air conditioning device.

The present invention relates to a novel isolating consulting table. The novel isolating consulting table includes a table body and an air outlet pipe, wherein an air inlet duct is inlaid on the table top; the air inlet duct and the air outlet pipe are located in the same vertical plane; an electric ion purification and disinfection system is arranged in the air inlet duct; the table body is provided with a pneumatic device; an air inlet and an air outlet of the pneumatic device are communicated with an air outlet of the air inlet duct and an air inlet duct of the air outlet pipe, respectively; the air outlet pipe includes a ventilation pipe, and an air outlet guide hood located at an air outlet of the ventilation pipe; an air outlet side of the air outlet guide hood is arranged toward the air inlet duct.

A clean air system comprises an inlet port, an airflow chamber, and an air exit port. A UV light source arranged within the airflow chamber disinfects air as it passes through the airflow chamber. The chamber promotes a vortex of swirling air around the intense UV light maximizing particle exposure. The clean air is then expelled at the other end of the chamber.