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Thermal energy storage and cooling system with isolated evaporator coil

a technology of energy storage and cooling system, which is applied in the direction of lighting and heating apparatus, heating types, domestic cooling apparatus, etc., can solve the problems of difficulty in achieving high-efficiency and limited success of current air conditioning units having energy storage systems, and achieve the effects of facilitating thermal contact, facilitating heat transfer, and facilitating heat transfer

Inactive Publication Date: 2009-12-03
ICE ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is a thermal energy storage and cooling system that uses a refrigerant loop and a cooling loop to provide efficient cooling. The system includes a primary heat exchanger that uses a fluid capable of a phase change between liquid and solid to cool the refrigerant during a first time period, and the refrigerant is then compressed and condensed. The refrigerant is then expanded to provide cooling in a second time period, and the cooling is transferred to a load heat exchanger for use. The system also includes isolating heat exchangers that facilitate the transfer of cooling from the refrigerant to the heat transfer medium and from the heat transfer medium to the load heat exchanger in a third time period. The system provides efficient cooling with reduced energy waste and improved cooling performance."

Problems solved by technology

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.

Method used

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  • Thermal energy storage and cooling system with isolated evaporator coil
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  • Thermal energy storage and cooling system with isolated evaporator coil

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Embodiment Construction

[0017]While this invention is susceptible to embodiment in many different forms, it 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.

[0018]FIG. 1 illustrates an embodiment of a thermal energy storage and cooling system with an isolated evaporator coil in a secondary refrigerant loop. This embodiment may function with or without an accumulator vessel or URMV 146 (universal refrigerant management vessel), and is depicted in FIG. 1 with the vessel in place in the primary refrigerant loop with the air conditioner unit 102.

[0019]As illustrated in FIG. 1, a conventional air conditioner unit 102 utilizes 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 di...

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Abstract

Disclosed is a method and device for a refrigerant-based thermal energy storage and cooling system with an isolated evaporator coil in a secondary cooling loop. The disclosed embodiments provide a refrigerant-based ice storage system with increased versatility, reliability, lower cost components, reduced power consumption and ease of installation.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is based upon and claims the benefit of U.S. provisional application No. 61 / 056,693, entitled “Thermal Energy Storage and Cooling System with Isolated Evaporator Coil,” filed May 28, 2008, 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 advantages of...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25D3/00F25B41/00F25D17/02F25B39/04
CPCF24F5/0017F25B5/00Y02E60/147F25B2400/23F25D16/00F25B2400/0409Y02E60/14
Inventor NARAYANAMURTHY, RAMACHANDRANPARSONNET, BRIANCOOK, DONALD THOMAS
Owner ICE ENERGY
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