Thermal energy storage and cooling system with isolated external melt cooling

a technology of applied in the field of thermal energy storage and cooling system with, can solve the problems of difficulty in achieving high-efficiency and limited success of current air conditioning units having energy storage system, and achieve the effect of facilitating heat transfer

Inactive Publication Date: 2008-02-14
ICE ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0004]An embodiment of the present invention may therefore comprise a refrigerant-based thermal energy storage and cooling system comprising: a refrigerant loop containing a refrigerant comprising: a condensing unit, the condensing unit comprising a compressor and a condenser; an expansion device connected downstream of the condensing unit; and, a primary heat exchanger that acts as an evaporator and is located within a tank filled with a fluid capable of a phase change betwe

Problems solved by technology

Current air conditioning units having energy storage systems have had limited success due to several deficiencies including r

Method used

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  • Thermal energy storage and cooling system with isolated external melt cooling
  • Thermal energy storage and cooling system with isolated external melt cooling
  • Thermal energy storage and cooling system with isolated external melt cooling

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Embodiment Construction

[0014]While this invention is susceptible to embodiment in many different forms, there is shown in the drawings and will be described herein in detail specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not to be limited to the specific embodiments described.

[0015]FIG. 1 illustrates an embodiment of a refrigerant-based thermal energy storage and cooling system with isolated external melt cooling. This embodiment may function with or without an accumulator vessel or URMV (universal refrigerant management vessel), and is depicted in FIG. 1 without the vessel. FIG. 2 depicts the system with a URMV. This embodiment incorporates an air conditioner unit 102 utilizing a compressor 110 to compress cold, low pressure refrigerant gas to hot, high-pressure gas. Next, a condenser 111 removes much of the heat in the gas and discharges the heat to the atmosphere. The refrigerant comes o...

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Abstract

Disclosed are a method and device for a refrigerant-based thermal energy storage and cooling system with isolated external melt cooling. The disclosed embodiments provide a refrigerant-based ice storage system with increased reliability, lower cost components, and reduced power consumption compared to a single phase system such as a glycol system.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is based upon and claims the benefit of U.S. provisional application No. 60 / 822,034, entitled “Thermal Energy Storage and Cooling System with Isolated External Melt Cooling”, filed Aug. 10, 2006, the entire disclosure of which is hereby specifically incorporated by reference for all that it discloses and teaches.BACKGROUND OF THE INVENTION[0002]With the increasing demands on peak demand power consumption, ice storage has been utilized to shift air conditioning power loads to off-peak times and rates. A need exists not only for load shifting from peak to off-peak periods, but also for increases in air conditioning unit capacity and efficiency. Current air conditioning units having energy storage systems have had limited success due to several deficiencies including reliance on water chillers that are practical only in large commercial buildings and have difficulty achieving high-efficiency. In order to commercialize advanta...

Claims

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Application Information

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IPC IPC(8): F25D3/02F25D17/02
CPCY02E60/147F24F5/0017Y02E60/14
Inventor NARAYANAMURTHY, RAMACHANDRANSTEWART, MARK W.WILLIS, ROBERT R.
Owner ICE ENERGY
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