摘要:
A DC powered compressor and an HVAC/R system having the compressor are disclosed. The compressor comprises an AC powered compressor and a DC/AC inverter configured to receive power from a DC power source and to provide the power to the AC compressor.
摘要:
A thermal energy battery for cooling temperature sensitive components comprises a composite of a sorbent with ammonia, water, alcohol, amine or a fluorocarbon refrigerant absorbed thereon and incorporated on a substrate material. The composite is encased in a containment material configured to rupture or otherwise release refrigerant desorbed by the sorbent composition when internal battery pressure reaches a threshold ΔP from the outside pressure, and thermal conduction means in thermal contact with the thermal energy battery and one or more temperature sensitive components for directing thermal energy therebetween to heat the composite and cool the temperature sensitive components.
摘要:
A method of preparing a composite configured to release refrigerant therefrom comprises providing a substrate material comprising polarized fibers of glass, polyamide, phenylene sulfide, carbon or graphite bonding thereon a metal compound comprising a complex compound of a polar gaseous refrigerant and a metal salt and/or a hydrated metal hydroxide and/or a metal hydroxide of a metal comprising alkali metal, alkaline earth metal, transition metal, zinc, cadmium, tin, aluminum, or two or more thereof, at a concentration of at least about 0.3 grams/cc of open substrate material volume, forming layers of the metal compound bonded substrate material, and sealing at least one layer or the exterior surface of the substrate material with a coating composition configured to prevent release of internal gaseous refrigerant therethrough at ambient temperatures and pressure and capable of penetration of gaseous refrigerant therethrough from the composite interior at temperatures causing internal gas pressures of 15% or more above exterior pressure for such refrigerant release.
摘要:
A system for cooling components comprises a composite of a sponge or sponge-like material with liquid refrigerant absorbed thereon and encased in a containment material configured to rupture or otherwise release evaporating refrigerant when internal composite pressure reaches a threshold ΔP from the outside pressure and/or at a pre-selected composite temperature, and thermal conduction means in thermal contact with the composite and one or more components for directing thermal energy to cool the components.
摘要:
A telecommunications outdoor shelter having an interior chamber containing one or more vertical racks of telecommunications and/or electronic components, and an AC powered air conditioner configured to deliver cooled air to said interior chamber, is characterized by a back-up cooling apparatus comprising: an outdoor refrigeration system exterior to the interior chamber configured for supplying refrigerant or chilled heat transfer fluid to an evaporator mounted in the interior chamber and for rejecting heat to ambient outside air; an air cooling unit comprising an air handler and evaporator mounted in the interior chamber and configured to receive refrigerant or heat transfer fluid from the outdoor refrigeration system and provide cool air to the interior chamber; an air distribution assembly cooperating with the comprising air cooling unit and one or more primary air ducts for directing cooled air from the evaporator and a plurality of secondary air ducts communicating with each of the primary air ducts, wherein each of the secondary air ducts is configured for delivering cooled air to one or more selected vertical racks at one or more vertical levels and wherein the handler includes one or more fans for moving warm air from the interior chamber to the evaporator and forcing cooled air through the one or more primary air ducts and the one or more secondary air ducts; an electric power generating unit configured to provide power for operating the outdoor refrigeration system and the indoor air cooling unit; and a sensor configured to initiate operation of the back-up cooling apparatus in response to AC power outage and/or interior chamber air temperature.
摘要:
An aqua-ammonia absorption cooling and/or heating system having a variable speed burner which uses active flow control of weak liquor and/or active control of refrigerant flow to the evaporator.
摘要:
The hitting distance performance of a golf ball is improved by heating the ball to an average temperature of between 30.degree. C. and 55.degree. C. during an active heating period of 30 minutes or less followed by a temperature equilibration period of 20 minutes or less. A golf ball heating appliance for carrying out the process has an upper and lower receptacle for receiving a plurality of golf balls and includes an electrical heating element capable of delivering at least 2 watts, and preferably, 4 watts of power per ball during the active heating period.
摘要:
The basic apparatus of the invention is a triple effect absorption cycle apparatus, comprising first, second and third generators each containing an aqueous absorption fluid and operating at successively higher temperatures; first, second and third condensers operating at successively higher temperatures, and operatively communicating with the generators; first heat exchange means cooperating between the third condenser and second generator, and between the second condenser and first generator, for directing energy therebetween; one, two or three absorbers and one, two or three fluid loops for directing aqueous absorption fluid between absorbers and second heat exchange means for exchanging energy between aqueous absorption fluid flows in said loops; and one, two or three evaporators operatively communicating with the absorbers. The includes preferred aqueous absorption fluids, a heat and mass transfer additive in the absorption fluid, means for separating the additive before the fluid reaches the high temperature generator, a heat and mass transfer additive reservoir, and a number of different absorption fluid loop options for routing the fluid between the absorber(s) and the three generators.
摘要:
The rate of water vapor sorption of an absorption cycle cooling and/or heating system using an aqueous alkali metal hydroxide solution as the working fluid is increased by adding at least 2 parts per million of a primary, secondary or tertiary aliphatic, cycloaliphatic or aromatic amine to the fluid.
摘要:
The basic apparatus of the invention is a triple effect absorption cycle apparatus, comprising first, second and third generators each containing an aqueous absorption fluid and operating at successively higher temperatures; first, second and third condensers operating at successively higher temperatures, and operatively communicating with the generators; first heat exchange means cooperating between the third and second generators, and between the second condenser and first generator, for directing energy therebetween; one, two or three absorbers and one, two or three fluid loops for directing aqueous absorption fluid between absorbers and second heat exchange means for exchanging energy between aqueous absorption fluid flows in said loops; and one, two or three evaporators operatively communicating with the absorbers. The invention includes preferred aqueous absorption fluids, a heat and mass transfer additive in the absorption fluid, means for separating the additive before the fluid reaches the high temperature generator, a heat and mass transfer reservoir, and a number of different absorption fluid loop options for routing the fluid between the absorber(s) and the three generators.