Abstract:
An apparatus for cooling room air, comprising a chamber (14) placed in the area of the ceiling (15) of the room, said chamber being formed by wall sections (10-13) arranged in the vertical and horizontal plane, which thereby close the chamber upwards and sideways. Said chamber having respective inlet and outlet openings (19, 20) for the room air, separately placed at the lower part of the chamber. The apparatus also comprises at least one cooling coil (18). At least one vertically arranged partition wall (16) extends in an upward direction from a lower wall section (13), which section is dismountable from the rest of the chamber. The partition wall defines a flow path, which extends in an upward direction from the inlet opening (19), along one side of the partition wall (16), past its upper end, and downwards along the other side of the partition wall (16) toward the outlet opening (20). The cooling coil (18) is placed in the flow path between the upper end of the partition wall and the outlet opening (20).
Abstract:
A dehumidifier including an evaporator, a condenser, and a fan arranged in a main body. The fan includes a first blowing part to blow air having passed through both the evaporator and the condenser, and a second blowing part to selectively blow any one of air having passed through both the condenser and the evaporator and air having passed through only the evaporator. The dehumidifier may additionally function to supply cold air.
Abstract:
A microprocessor-based air conditioning/refrigeration control system adapted for use with a variable speed compressor measures acceleration of the compressor and the temperature or pressure of the refrigerant exiting therefrom, determines the rate of change of the temperature or pressure of the refrigerant, and decreases acceleration of the compressor if the rate of change of the temperature or pressure of the working fluid indicates surging of the compressor. Superheat of the refrigerant is maintained at a first predefined level while the compressor is operating at constant speed and is increased to a second, higher predefined level while the compressor is accelerating. The system is able to diagnose deterioration of the compressor by measuring and comparing power input to the compressor and rate of change of temperature or pressure of the refrigerant at the compressor between initial and subsequent periods, and differentiate between deterioration of a drive component or a pressurizing component of the compressor.
Abstract:
A supply duct is fitted rotatably to an air conditioner main body and people sensing means for sensing people to be air conditioned and for discriminating the moving direction of the people is provided to the supply duct. Air direction means controls the duct driving means of the supply duct in response to a people sensing signal and a moving signal outputted from the people sensing means and the supply duct rotates in such a manner as to follow up the movement of people to be air conditioned. Thus, comfortable local cooling can be accomplished.
Abstract:
A hybrid ambient-air conditioning plant (1) comprising a first thermal device (2) having a burner (3) which is adapted to heat a first working fluid (Fi) contained in a circuit (6) placed in an environment (A) to be air-conditioned and a chimney (8) for ejecting combustion products (E). The chimney (8) comprises a condenser (9) for recovering evaporation heat from the combustion products (E) and a second thermal device (11) is provided in the environment (A). The condenser (9) comprises a first secondary circuit (14) containing a first secondary fluid (F2) and operably connected to the second thermal device (11) for returning the recovered heat to the environment (A) by means of the first secondary fluid (F2). The plant (1) comprises a heat pump (17) which is adapted to operate in the heating or cooling mode and having a second secondary circuit (18) containing a second secondary fluid (F3) and operably connected to the second thermal device (11). Connection means (19) are provided for selectively connecting the second thermal device (11) with the first secondary circuit (14) and/or with the heat pump (17) for ambient heating in combination with the first device (2), and with the heat pump (17) in the cooling mode.
Abstract:
An integrated mechanical, electrical and plumbing appliance includes a housing defining a space occupied by an air treatment system, an electric power system, and a water treatment system. The electric power system includes a divides electrical power from an electrical power source connection into electrical circuit feeds for delivery within the housing to the air treatment system and the water treatment system, and to a building. The air treatment system includes receives exhaust air from the building and uses the exhaust air to precondition outdoor air, and receives return air from the building and conditions the return air. The water treatment system receives water from outside the building and divides the water into a water flow for output to the building and water flow to be filtered, filters water and outputs unheated water to the building, and heats water for output to the building.
Abstract:
A water generation system and method for an industrial plant is disclosed. The system comprises a water collection system adapted to capture condensed water from the condensation surface from an ambient air conditioning system comprising a pre-cooler or chiller and a condensation surface, wherein the pre-cooler/chiller reduces the temperature of the condensation surface to a temperature at which moisture in the ambient air will condense on the condensation surface.
Abstract:
A dehumidifier unit for pre-conditioning air delivered to a multiplicity of separate refrigeration air conditioner units and especially ductless systems where the compressor-condenser unit (57-62) is separate from the fan-coil unit, and assisted by heat pipe (T) transfer of heat from air dehumidified through a desiccant wheel (W) and by heat of compression from the condenser (58) of one compressor-condenser unit, and with a heater (19) to maintain the temperature of regeneration air through the wheel, one dehumidifier unit pre-conditioning air for a multiplicity of refrigeration air conditioners or fan-coil units.
Abstract:
Refrigerant management control is provided for an air conditioning system (10) with cool thermal energy storage. The system includes a compressor (18), a condensing unit (12), a temporary refrigerant storage vessel (28), a storage module (14) containing a thermal energy storage medium (35), a liquid refrigerant pump (42) associated with the storage module, expansion means (62) and an evaporator (16) operatively interconnected. The system is operable in a shift cooling mode, direct cooling mode, and storage medium cooling mode. Before the system is operable in the shift cooling mode, the system is operated in a first transitory mode wherein the storage module (14) is utilized as a heat sink to draw refrigerant from the condensing unit (12), temporary refrigerant storage vessel (28) and evaporator (16) into the storage module (14). Before the system is operable in the direct cooling mode, the system is operated in a second transitory mode wherein the compressor (18) is operated to draw refrigerant into the condensing unit (12) and temporary refrigerant storage vessel.