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Application of variable speed drive to overcome air conditioning oversizing issue

This paper was aimed at studying the impact of a variable speed drive in tackling the issue caused by an oversized air conditioning system. In this study, oversizing was determined by calculating the actual load demand in an operating air handling unit (AHU), and the formation of mould growth as an...

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Main Authors: Abdul Halim, Abdul Qayyum, Tee, Boon Tuan
Format: Article
Language:English
Published: UiTM Press 2022
Online Access:http://eprints.utem.edu.my/id/eprint/26402/2/JMECHE%202022.PDF
http://eprints.utem.edu.my/id/eprint/26402/
https://jmeche.uitm.edu.my/wp-content/uploads/2022/04/12.%20PCSDRA-07.pdf
https://jmeche.uitm.edu.my/
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spelling my.utem.eprints.264022023-02-23T11:15:27Z http://eprints.utem.edu.my/id/eprint/26402/ Application of variable speed drive to overcome air conditioning oversizing issue Abdul Halim, Abdul Qayyum Tee, Boon Tuan This paper was aimed at studying the impact of a variable speed drive in tackling the issue caused by an oversized air conditioning system. In this study, oversizing was determined by calculating the actual load demand in an operating air handling unit (AHU), and the formation of mould growth as an indicator of the failure of the AHU to dehumidify the air. A comparison was made between the performance of an actual operating AHU, the performance of the AHU after the installation of a variable speed drive (VSD), and an appropriately sized simulated model of a building using building energy simulation software. The study found that the installed AHU was oversized by 60% and that the installation of VSD is effective in reducing the effective total capacity to meet actual cooling load demand. This study also shows that VSD installation successfully eliminates favourable condition of mould growth by simultaneously reducing AHU capacity and room relative humidity. However, VSD installation should not be standard practice in lieu of proper calculations to determine the appropriate size for an air conditioning system. The simulation result shows that correctly sized air conditioning system will be able to maintain ideal room condition without incurring energy penalties associated with oversizing. UiTM Press 2022-04-15 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/26402/2/JMECHE%202022.PDF Abdul Halim, Abdul Qayyum and Tee, Boon Tuan (2022) Application of variable speed drive to overcome air conditioning oversizing issue. Journal of Mechanical Engineering, 19 (2). pp. 219-232. ISSN 1823-5514 https://jmeche.uitm.edu.my/wp-content/uploads/2022/04/12.%20PCSDRA-07.pdf https://jmeche.uitm.edu.my/
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
description This paper was aimed at studying the impact of a variable speed drive in tackling the issue caused by an oversized air conditioning system. In this study, oversizing was determined by calculating the actual load demand in an operating air handling unit (AHU), and the formation of mould growth as an indicator of the failure of the AHU to dehumidify the air. A comparison was made between the performance of an actual operating AHU, the performance of the AHU after the installation of a variable speed drive (VSD), and an appropriately sized simulated model of a building using building energy simulation software. The study found that the installed AHU was oversized by 60% and that the installation of VSD is effective in reducing the effective total capacity to meet actual cooling load demand. This study also shows that VSD installation successfully eliminates favourable condition of mould growth by simultaneously reducing AHU capacity and room relative humidity. However, VSD installation should not be standard practice in lieu of proper calculations to determine the appropriate size for an air conditioning system. The simulation result shows that correctly sized air conditioning system will be able to maintain ideal room condition without incurring energy penalties associated with oversizing.
format Article
author Abdul Halim, Abdul Qayyum
Tee, Boon Tuan
spellingShingle Abdul Halim, Abdul Qayyum
Tee, Boon Tuan
Application of variable speed drive to overcome air conditioning oversizing issue
author_facet Abdul Halim, Abdul Qayyum
Tee, Boon Tuan
author_sort Abdul Halim, Abdul Qayyum
title Application of variable speed drive to overcome air conditioning oversizing issue
title_short Application of variable speed drive to overcome air conditioning oversizing issue
title_full Application of variable speed drive to overcome air conditioning oversizing issue
title_fullStr Application of variable speed drive to overcome air conditioning oversizing issue
title_full_unstemmed Application of variable speed drive to overcome air conditioning oversizing issue
title_sort application of variable speed drive to overcome air conditioning oversizing issue
publisher UiTM Press
publishDate 2022
url http://eprints.utem.edu.my/id/eprint/26402/2/JMECHE%202022.PDF
http://eprints.utem.edu.my/id/eprint/26402/
https://jmeche.uitm.edu.my/wp-content/uploads/2022/04/12.%20PCSDRA-07.pdf
https://jmeche.uitm.edu.my/
_version_ 1758953857261502464
score 13.211869

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