[특허]Multi-mode air conditioning unit with energy storage system

[미국특허] Multi-mode air conditioning unit with energy storage system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25D-003/00
출원번호	US-0852307 (1992-03-18)
발명자 / 주소	Fischer Harry C. (Box 14 Moon VA 23119)
인용정보	피인용 횟수 : 41 인용 특허 : 0

초록 ▼

A method and air conditioning unit for storing energy and for utilizing stored energy is provided. The air conditioning unit includes a storage tank containing a phase change material, such as water. A plurality of coils are disposed in the storage tank and carry refrigerant. At least one indoor heat exchanger is connected to the coils. An electrical operated refrigerant pump is connected to the coils and is used to pump liquid refrigerant to the indoor heat exchanger when required. A conventional condensing unit is connected to the indoor heat exchanger to provide cooling during normal hours. During peak energy periods, cooling is supplied from ice storage using the refrigerant pump. During low demand or off peak periods the condensing unit operates to freeze ice thereby storing energy in the storage tank.

대표청구항 ▼

A multi-mode air conditioning unit having a low temperature thermal storage system comprising: a) an insulated tank containing water; b) a plurality of cooling coils located in said insulated tank; c) a top header having a first and second fluid lines for receiving and discharging refrigerant and further connected to said plurality of cooling coils; d) an accumulator system for storing liquid refrigerant, for separating vapor from liquid, and for returning oil to a compressor comprising: an insulated accumulator tank having a first port, a second port and a third port; a one-way check valve directing flow to said top header connected to the first port; a main suction line connected to the second port and further connected to an ice oil suction line having a one-way check valve directing flow from said top header to the main suction line; and a vapor and oil return line having a J-tube configuration with a vapor inlet near the top of the accumulator and an oil return orifice located at the bottom of the J-tube, said vapor and oil return connected to the third port and leading a condensing unit; e) a plurality of distributor lines connected to the lower ends of said cooling coils; f) a side outlet distributor connected to said distributor lines; g) a thermostatic expansion valve attached to said side outlet distributor; h) a solenoid value receiving refrigerant from a liquid line from a condensing unit and connected to said thermostatic expansion valve; i) a refrigerant pump connected to the side outlet of said side outlet distributor; j) an insulated storage vessel having an inlet and high outlet and containing heat exchanger coils; k) a solenoid valve controlling flow from the liquid line connected to the heat exchanger coils in said storage tank; l) a second thermostatic expansion valve connected to the heat exchanger coils; m) a second side port distributor having the side port connected to the high outlet of said storage vessel and having the primary port connected to said second thermostatic valve; and n) a plurality distributor lines connected to said second side port distribution and further leading a conventional indoor coil.

이 특허를 인용한 특허 (41) 인용/피인용 타임라인 분석

Piesker, Markus, Accumulator arrangement for storing a refrigerating medium, and method of operating such an accumulator arrangement.
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Weng Kuo-Lianq,TWX ; Weng Kuo-Liang,TWX, Air conditioning system with supplemental ice storing and cooling capacity.
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Gilles Theodore C. (Dallas TX), Air conditioning system with thermal energy storage and load leveling capacity.
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Bugby, David C.; Kroliczek, Edward J.; Kester, Jessica Maria, Methods of forming a thermal storage unit.
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Muren, Russell, Methods, systems, and devices for thermal enhancement.
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Muren, Russell, Methods, systems, and devices for thermal enhancement.
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Narayanamurthy, Ramachandran; Hicks, Robert Scott; Kerrigan, Robert K.; Kay, Christopher A., Mixed-phase regulator.
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Narayanamurthy, Ramachandran; Hicks, Robert Scott; Kerrigan, Robert K.; Kay, Christopher A., Mixed-phase regulator for managing coolant in a refrigerant based high efficiency energy storage and cooling system.
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Jacobs, Dexter E.; Sokoloff, Zachary, Modular thermal energy storage system.
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Narayanamurthy, Ramachandran, Multiple refrigerant thermal energy storage and cooling system with secondary refrigerant isolation.
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Yeh, Joseph; Hendrix, Walter, Outdoor enclosure cooling system operating at off-peak hours.
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Clarksean,Randy Lee, PCM (phase change material) system and method for shifting peak electrical load.
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Pokharna,Himanshu; DiStefano,Eric, Pumped loop cooling with remote heat exchanger and display cooling.
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Upshaw, Charles R.; Webber, Michael E.; Rhodes, Joshua D., Reducing peak electrical demand by air conditioning systems and reducing water consumption by implementing an integrated thermal energy and rainwater storage system.
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Dean William J. (Oklahoma City OK), Refrigerant management control and method for a thermal energy storage system.
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Narayanamurthy, Ramachandran; Hicks, Robert Scott, Refrigerant-based thermal energy storage and cooling system with enhanced heat exchange capability.
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Narayanamurthy,Ramachandran; Hicks,Robert Scott, Refrigerant-based thermal energy storage and cooling system with enhanced heat exchange capability.
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Narayanamurthy, Ramachandran, Refrigeration apparatus.
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Narayanamurthy,Ramachandran; Kerrigan,Robert K.; Kay,Christopher A., Refrigeration apparatus.
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Immink, Darin E.; Peterson, Clinton A.; Veldt, Andrew R., Refrigeration capacity banking for thermal cycling.
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Wu, Guolian, Retrofittable thermal storage for air conditioning systems.
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Parsonnet, Brian, System and method for improving grid efficiency utilizing statistical distribution control.
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Parsonnet, Brian; Willis, Jr., Robert R.; Wiersma, Dean L., System and method for liquid-suction heat exchange thermal energy storage.
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Narayanamurthy, Ramachandran; Parsonnet, Brian; Cook, Donald Thomas, Thermal energy storage and cooling system utilizing multiple refrigerant and cooling loops with a common evaporator coil.
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Narayanamurthy,Ramachandran; Willis, Jr.,Robert R., Thermal energy storage and cooling system with gravity fed secondary refrigerant isolation.
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Narayanamurthy, Ramachandran, Thermal energy storage and cooling system with secondary refrigerant isolation.
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Narayanamurthy,Ramachandran, Thermal energy storage and cooling system with secondary refrigerant isolation.
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Anderson,R. David, Thermal energy transfer unit and method.
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Bugby, David C.; Kroliczek, Edward J.; Garzon, Jessica Maria, Two-phase heat transfer system including a thermal capacitance device.
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Bugby, David C.; Kroliczek, Edward J.; Kester, Jessica Maria, Two-phase heat transfer system including a thermal capacitance device.
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Parsonnet, Brian; Narayanamurthy, Ramachandran, Utility managed virtual power plant utilizing aggregated thermal energy storage.
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[미국특허] Multi-mode air conditioning unit with energy storage system 원문보기

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