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The thermal characteristics and performance of a ground heat exchanger for tropical climates

This paper presents the thermal characteristics and performance of ground heat exchanger (GHE) based on the mathematical model for tropical climate conditions. The case study is undertaken with the depth of ground, z of 2 m, air inlet temperature of 35 °C, air mass flow rate of 0.02–0.2 kg/s and dif...

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Main Authors: Mohd Yusof, Taib, Hassan, Ibrahim, Azmi, W. H., M. R. M., Rejab
Format: Article
Language:English
Published: Elsevier 2018
Subjects:
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/21126/1/The%20thermal%20characteristics%20and%20performance.pdf
http://umpir.ump.edu.my/id/eprint/21126/
https://doi.org/10.1016/j.renene.2018.01.083
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spelling my.ump.umpir.211262018-05-15T03:58:12Z http://umpir.ump.edu.my/id/eprint/21126/ The thermal characteristics and performance of a ground heat exchanger for tropical climates Mohd Yusof, Taib Hassan, Ibrahim Azmi, W. H. M. R. M., Rejab TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery This paper presents the thermal characteristics and performance of ground heat exchanger (GHE) based on the mathematical model for tropical climate conditions. The case study is undertaken with the depth of ground, z of 2 m, air inlet temperature of 35 °C, air mass flow rate of 0.02–0.2 kg/s and different sizes of internal pipe diameters (ID). The effectiveness of the GHE is analyzed at 0.8, 0.9 and 0.99. The performance results of the GHE show that the flow rate of 0.02 kg/s gives great fluid temperature (Tf) reduction in the pipe compared with higher flow rates. However, the outlet temperature (Tout) of air at the end of the 25 m length of pipe with different flow rates tend to reach the same point with a maximum difference of only 0.36 °C for the range of the flow rates. Meanwhile, the rates of heat transfer relatively increase as the flow rates increase. Effectiveness of 0.9 has been identified that it is possible and achievable to be obtained with the 25 m length of the pipe. This finding has confirmed that the GHE has a great potential and good performance to be implemented in tropical climate countries. Elsevier 2018-06 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/21126/1/The%20thermal%20characteristics%20and%20performance.pdf Mohd Yusof, Taib and Hassan, Ibrahim and Azmi, W. H. and M. R. M., Rejab (2018) The thermal characteristics and performance of a ground heat exchanger for tropical climates. Renewable Energy, 121. pp. 528-538. ISSN 0960-1481 https://doi.org/10.1016/j.renene.2018.01.083 10.1016/j.renene.2018.01.083
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
spellingShingle TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
Mohd Yusof, Taib
Hassan, Ibrahim
Azmi, W. H.
M. R. M., Rejab
The thermal characteristics and performance of a ground heat exchanger for tropical climates
description This paper presents the thermal characteristics and performance of ground heat exchanger (GHE) based on the mathematical model for tropical climate conditions. The case study is undertaken with the depth of ground, z of 2 m, air inlet temperature of 35 °C, air mass flow rate of 0.02–0.2 kg/s and different sizes of internal pipe diameters (ID). The effectiveness of the GHE is analyzed at 0.8, 0.9 and 0.99. The performance results of the GHE show that the flow rate of 0.02 kg/s gives great fluid temperature (Tf) reduction in the pipe compared with higher flow rates. However, the outlet temperature (Tout) of air at the end of the 25 m length of pipe with different flow rates tend to reach the same point with a maximum difference of only 0.36 °C for the range of the flow rates. Meanwhile, the rates of heat transfer relatively increase as the flow rates increase. Effectiveness of 0.9 has been identified that it is possible and achievable to be obtained with the 25 m length of the pipe. This finding has confirmed that the GHE has a great potential and good performance to be implemented in tropical climate countries.
format Article
author Mohd Yusof, Taib
Hassan, Ibrahim
Azmi, W. H.
M. R. M., Rejab
author_facet Mohd Yusof, Taib
Hassan, Ibrahim
Azmi, W. H.
M. R. M., Rejab
author_sort Mohd Yusof, Taib
title The thermal characteristics and performance of a ground heat exchanger for tropical climates
title_short The thermal characteristics and performance of a ground heat exchanger for tropical climates
title_full The thermal characteristics and performance of a ground heat exchanger for tropical climates
title_fullStr The thermal characteristics and performance of a ground heat exchanger for tropical climates
title_full_unstemmed The thermal characteristics and performance of a ground heat exchanger for tropical climates
title_sort thermal characteristics and performance of a ground heat exchanger for tropical climates
publisher Elsevier
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/21126/1/The%20thermal%20characteristics%20and%20performance.pdf
http://umpir.ump.edu.my/id/eprint/21126/
https://doi.org/10.1016/j.renene.2018.01.083
_version_ 1643669056088178688
score 13.211869

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