Enhancing Energy Efficiency: Geothermal Heat Pumps Utilizing Existing Water Boreholes in Pakistan

Saif Ullah; Muhammad Irfan; Muhammad Mahabat Khan

doi:10.3390/engproc2023045006

Engineering Proceedings (Sep 2023)

Enhancing Energy Efficiency: Geothermal Heat Pumps Utilizing Existing Water Boreholes in Pakistan

Saif Ullah,
Muhammad Irfan,
Muhammad Mahabat Khan

Affiliations

Saif Ullah: Department of Mechanical Engineering, Capital University of Science and Technology, Islamabad 44000, Pakistan
Muhammad Irfan: Department of Mechanical Engineering, Capital University of Science and Technology, Islamabad 44000, Pakistan
Muhammad Mahabat Khan: Department of Mechanical Engineering, Capital University of Science and Technology, Islamabad 44000, Pakistan

DOI: https://doi.org/10.3390/engproc2023045006
Journal volume & issue: Vol. 45, no. 1
p. 6

Abstract

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Vertical borehole geothermal heat pumps (GHPs) offer eco-friendly and energy-efficient heating and cooling. This paper proposes enhancing the coefficient of performance (COP) by converting air source heat pumps (ASHPs) into ground source heat pumps (GSHPs). This study presents a cost-effective approach to utilizing existing water boreholes in Pakistani buildings, reducing drilling and piping expenses. The results show that GSHPs achieved average COP values of 5.92, 33.33% higher than ASHPs. GSHPs demonstrated an average energy efficiency ratio (EER) of 20.12, exceeding ASHPs by 33.9%. These findings highlight the enhanced COP and energy efficiency of GSHPs, making them an attractive option for sustainable HVAC systems.

Published in Engineering Proceedings

ISSN: 2673-4591 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General): Engineering machinery, tools, and implements
Website: https://www.mdpi.com/journal/engproc

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