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World Journal of Engineering Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

ISSN 2454-695X

Impact Factor : 7.029

ICV : 79.45

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Abstract

A CFD ANALYSIS FOR EVALUATING THERMAL PERFORMANCE OF EARTH AIR TUNNEL HEAT EXCHANGER

Md. Shawkut Ali Khan*

ABSTRACT

This study investigates the use of an Earth-to-Air Tunnel HeatExchanger (EATHE) for lowering indoor building temperatures.EATHE is a subterranean heat exchanger that uses free cooling andheating to transfer heat from the ground. A computational fluiddynamics model was created using ANSYS to examine the system'sthermal efficiency and cooling capability. The model, which includes a20-meter PVC pipe, provides cooling within the range of 10.5K to 13Kfor flow velocities of 3–5 ms-1. The EATHE system's performance islargely unaffected by the underground pipe configuration, but the use of fin and fin blocksignificantly impacts its performance. The EATHE approach exhibits significant potential forreducing the temperature within the building, with an energy payback period ranging from 5to 9 years, subject to regional variations. Regarding the overall outcomes, it can be stated thatutilizing EATHE can be a significant stride towards conserving the natural energy supply.

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