Abstract:
The present invention relates to an air conditioner using hot water heated by a solar heating system, the air conditioner comprising: a heater (10) that has a vacuous interior and a plurality of hot water branch pipes (13) immersed in the refrigerant; a condenser (30) connected with the heater (10) through a steam pipe (L1); an ejector (20) mounted to the steam pipe (L1); a flow regulator (40) installed on the exit side of the condenser (30); a refrigerant return line (L2) connected to the flow regulator (40) to return the refrigerant to the heater (10); an evaporator (50) connected to the flow regulator (40) to receive condensate; a 1st steam supply line (L4) connected with the evaporator (50) to supply the evaporated refrigerant to the ejector (20); and a 2nd steam supply line (L5) that is branched from the 1st steam supply line (L4) and then connected with the steam pipe (L1) and has a vacuum pump (P2) installed therein. With the above configuration, the present invention can save energy by performing air conditioning using solar energy that is available in plenty during the summer, and continue air conditioning by maintaining the refrigeration cycle with the help of a built-in vacuum pump even when there is not enough solar energy.
Abstract:
Plant for heat-regulating a first fluid (2C, 2F) and a second fluid (3F, 3C) for the air-conditioning of premises, comprising a source (10; 110; 210; 310; 410) of primary thermal energy capable of providing a hot fluid (1C); an absorption refrigerating machine (20) supplied with said primary thermal energy (1C); a first auxiliary circuit (30) for recirculating said first fluid (2C, 2F), which exits hot (2C) from the absorption machine (20) and returns cold (2F) into the same machine; a second auxiliary circuit (40) for recirculating said second fluid (3F, 3C), which exits cold (3F) from the machine and returns hot (3C) into the same machine; there being provided a heat-exchange mass (50; 150; 250; 350) capable of supplying/absorbing heat, means (71, 72, 73, 74) capable of connecting alternately the first auxiliary circuit (30) or the second auxiliary circuit (40) of the absorption machine (20) to said thermal mass (50; 150; 250; 350) or to the user appliances (61, 62) for the associated heat exchange; said primary thermal energy being hot water (1C).
Abstract:
A device for air conditioning comprises a box-like casing (2) housing thereinside a first conduit (6) for taking a first air flow rate from outside, a second conduit (7) for taking a second air flow rate from the premise to be conditioned and in fluidic communication with the first conduit (6) for mixing the respective flow rates, adsorption means (11) operatively connected with the first conduit (6) upstream of the second conduit (7) for the dehumidification of the first air flow rate, the first (6) and second conduits (7) having a common delivery section (9) adapted to deliver a third air flow rate to the premise to be conditioned, heating means (17) adapted to deliver a fourth air flow rate to the adsorption means (11) at a higher temperature than the outside one for the regeneration thereof. The adsorption means (11) comprise at least one first (11 ') and one second (11") portions adapted to be selectively and alternately crossed by the first and the fourth air flow rates. An air conditioning method using the above device is also disclosed.
Abstract:
The present invention relates to a method for chilling a building comprising the steps of: Heating a working solution contained in a solar panel using solar radiation, Separating the heated working solution in vapor 10 and a concentrated working solution, Condensing the vapor to liquid refrigerant, Evaporating the liquid refrigerant, (i) in a building to be chilled or (ii) outside a building to be chilled, wherein the cooling obtained by evaporation is transferred to a cooling liquid outside the building and transported to the building to be chilled for delivery of the cooling, Ab-15 sorbing in an absorber the vapor in the concentrated working solution, and Returning the working solution to the first step.
Abstract:
Methods and apparatii are provided for utilizing radiation as a resource. The apparatii are based on an adsorber containing adsorbing material capable of utilizing the infrared radiation for desorption of liquid from the adsorbing material and evaporator that contains mixture of liquids covers by thin layer of oil capable of operating under negative pressure or vacuum. A condenser is fluidically connecting the adsorber and the evaporator while pressure and steam gradient is kept within the apparatus. When liquid evaporates from the evaporator, the temperature of the liquid left in the evaporator is reduced and can exchange heat and cool ambient air. The apparatii can be used for many applications, some of them are disclosed.
Abstract:
A method, apparatus and system for transferring heat is disclosed using a first gas adsorbent material, and a second gas adsorbent material that is relatively thermally isolated from but in continuous gas communication with the first material. In a first step the first material is heated so as to desorb a gas adsorbed onto the first material whereby the gas passes to and is adsorbed onto the second material. In a second step the first material is cooled in a manner so that the gas is desorbed from the second material and passes therefrom to be re-adsorbed onto the first adsorbent material. When the gas is desorbed from the second material, the second material is cooled thereby. In this way a hot gas stream can be used to cool another gas stream.
Abstract:
An air conditioning system that can be driven by solar energy. A solar collector uses energy from the sun (10) to evaporate water from a desiccant fluid (1). The desiccant fluid (1) then flows into a mass transfer device which removes moisture from an air stream (10). Calcium chloride is the preferred desiccant material and can serve as an energy-storage medium. Electric or fuel backup can be used with this system to regenerate the desiccant material. In some embodiments an indirect evaporative cooler (14) is added to provide sensible cooling. A new desiccant cooling system that is specially designed to work with the properties of this desiccant and meet comfort requirements of conventional air conditioning.
Abstract:
The present invention provides a liquid desiccant dehumidifier and a liquid desiccant air conditioner including an absorption air conditioner and a liquid desiccant dehumidifier. The dehumidifier includes a liquid desiccant absorber for absorbing moisture contained in ambient air entering the dehumidifier and passing through the desiccant absorber. A boiler is provided for boiling partially preheated dilute liquid desiccant to evaporate moisture to reconstitute the liquid desiccant into concentrated liquid desiccant. In a preferred embodiment, a first heat exchanger fluidly communicates with the desiccant absorber and a second heat exchanger. The first heat exchanger is operable to transfer heat from the concentrated liquid desiccant to the dilute liquid desiccant directed to the first heat exchanger from the desiccant absorber to raise the temperature of the dilute liquid desiccant to a first temperature. A condenser fluidly communicates with the boiler to receive steam generated by boiling the liquid desiccant in the boiler, and with the first heat exchanger to receive partially heated dilute liquid desiccant from the first heat exchanger at the first temperature. The condenser is operable to sensibly heat the dilute liquid desiccant therein to a second temperature by recovering the latent heat of condensation as steam delivered from the boiler is condensed. The second heat exchanger fluidly communicates with the condenser, the boiler and the first heat exchanger. The second heat exchanger is operable to transfer heat from concentrated liquid desiccant directed to the second heat exchanger from the boiler to the dilute liquid desiccant directed to the second heat exchanger from the condenser at the second temperature to raise the temperature of the dilute liquid desiccant to a third temperature. The dilute liquid desiccant at the third temperature is directed to the boiler and the concentrated liquid desiccant from the second heat exchanger is directed to the first heat exchanger. The second heat exchanger is disposed with respect to the boiler to recover waste heat from the boiler. A pump is provided for pumping concentrated liquid desiccant into the absorber. A fraction of the steam from the boiler is used to regenerate the refrigerant in the absorption air conditioner.
Abstract:
The invention provides a heat pump/engine system having a water/brine flash evaporator (2) in fluid communication with a first air/brine heat exchanger (10), a brine condenser (20) in fluid communication with a second air/brine heat exchanger (26), and a vapor compressor/turbine (16) connected on a fluid conduit (14) leading from the flash evaporator to the brine condensor. Heat/pump methods are also provided herein.
Abstract:
A heating, ventilation, air conditioning and refrigeration (HVAC/R) system includes a sorption circuit including a heat absorption heat exchanger in fluid communication with a primary fluid flow source such that a primary fluid flow from is directed therethrough. The heat absorption heat exchanger is configured to exchange thermal energy between the primary fluid flow and a secondary fluid flow. A sorption heat exchanger includes a sorbent material to adsorb or absorb the primary fluid flow, generating thermal energy. The sorption heat exchanger is configured to transfer the generated thermal energy to a tertiary fluid flow. A heat exchange circuit is in fluid communication with the sorption circuit and includes a control valves connected to both the secondary fluid flow and the tertiary fluid flow configured to selectably direct the secondary fluid flow and/or the tertiary fluid flow to a conditioning heat exchanger or an ambient heat exchanger.