Air conditioning system with pre-cooler

a technology of air conditioner and pre-cooler, which is applied in the direction of defrosting, heating types, and domestic cooling apparatus, etc., can solve the problems of large amount of air conditioner condensate, high interior relative humidity, and high occupancy of high-occupancy buildings

Inactive Publication Date: 2015-12-17
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]These and other features of the present invention will become readil

Problems solved by technology

Most high occupancy buildings, such as schools, airports, office buildings, hotels and shoppin

Method used

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  • Air conditioning system with pre-cooler
  • Air conditioning system with pre-cooler
  • Air conditioning system with pre-cooler

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Embodiment Construction

[0015]The air conditioning system with pre-cooler utilizes the cold condensate that typically drips off the evaporator of a conventional air conditioner to pre-cool the incoming air and / or refrigerant in order to achieve greater efficiency. Reducing the air temperature before entering the evaporator and the condenser by incorporation of suitable pre-cooling technique and sub-cooling the refrigerant exiting the condenser will enhance the cooling capacity of the AC system and reduce the power consumption and increase the energy efficiency.

[0016]Referring to FIG. 1, a conventional vapor compression air conditioning system typically comprises four basic components: the evaporator 102, the compressor 107, the condenser 104, and the expansion valve 103. In a typical refrigeration cycle, the refrigerant fluid flows through the compressor 107 into the condenser 104, and into the expansion valve 103 and finally into the evaporator 102. An internal fan 105 moves the ambient air 106 through th...

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Abstract

The air conditioning system with pre-cooler includes a compressor; a condenser; an evaporator; a condensate reservoir to collect condensed water discharged from the evaporator; and a condensate pump associated with the condensate reservoir. In one embodiment, the system includes a single pre-cooler that uses condensate to precool air before it reaches the evaporator. In a second embodiment, the system includes a sub-cooler between the condenser and an expansion valve that uses the condensate to pre-cool the refrigerant before it reaches the evaporator. In a third embodiment, the system includes a first pre-cooler that uses condensate to precool air before it reaches the evaporator; a sub-cooler between the condenser and an expansion valve that uses the condensate to pre-cool the refrigerant before it reaches the evaporator; and a second pre-cooler that uses the condensate to pre-cool air before it reaches the condenser.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of U.S. Provisional Patent Application Ser. No. 62 / 012,955, filed Jun. 16, 2014.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to air conditioning systems, and particularly to an air conditioning system that recirculates the condensate to precool air or to sub-cool refrigerant.[0004]2. Description of the Related Art[0005]An air conditioner (often referred to as “AC”) is an appliance, system, or mechanism designed to extract heat from an area. The cooling is done using a simple refrigeration cycle. Its purpose, in a building or an automobile, is to provide comfort during hot weather. In the refrigeration cycle, a heat pump transfers heat from a lower-temperature heat source into a higher-temperature heat sink. Heat would naturally flow in the opposite direction. This is the most common type of air conditioning. This cycle takes advantage of the way phase chan...

Claims

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Application Information

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IPC IPC(8): F25B23/00F25D17/00F25D21/14
CPCF25B23/00F25D17/00F25D21/14F25B40/02F24F2013/228F25B2339/047F24F1/42F24F2013/225
Inventor AL-FARAYEDHI, ABDULGHANI A.GANDHIDASAN, PALANICHAMYIBRAHIM, NASIRU I.
Owner KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
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