Analysis of potential energy and cost savings of replacing air-cooled chillers with water-cooled chillers: A case study in hotel building in tropical climate

Selecting the type of chillers to be used in commercial buildings is critical considering their high energy consumption, which consequently requires the use of chillers with higher efficiency in order to improve the energy efficiency of buildings and reduce their carbon footprint. Through a case stu...

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Main Authors: Arka Dwinanda Soewono, Ivan Agustinus Kusmanto, Marten Darmawan, Sheila Tobing
Format: Article
Language:English
Published: Khon Kaen University 2023-07-01
Series:Engineering and Applied Science Research
Subjects:
Online Access:https://ph01.tci-thaijo.org/index.php/easr/article/view/252559/171180
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author Arka Dwinanda Soewono
Ivan Agustinus Kusmanto
Marten Darmawan
Sheila Tobing
author_facet Arka Dwinanda Soewono
Ivan Agustinus Kusmanto
Marten Darmawan
Sheila Tobing
author_sort Arka Dwinanda Soewono
collection DOAJ
description Selecting the type of chillers to be used in commercial buildings is critical considering their high energy consumption, which consequently requires the use of chillers with higher efficiency in order to improve the energy efficiency of buildings and reduce their carbon footprint. Through a case study in a commercial resort, this research presents an energy consumption analysis of the replacement of air-cooled chillers with water-cooled chillers. The energy savings were calculated based on not only the simulation software but also the actual energy consumption data after the installation of the water-cooled chillers. The energy analysis indicated that the use of water-cooled chillers to substitute the air-cooled chillers in the resort resulted in energy saving of around 17.5% with a reduction of 2860 tonnes of CO2 equivalent emission per year. Meanwhile, the cost analysis showed that the life-cycle cost of the water-cooled chillers is around 13.4% less. These findings demonstrate the potential of using water-cooled chillers as a replacement for air-cooled chillers in existing commercial buildings to reduce energy consumption and its associated carbon emission without compromising the buildings’ indoor comfort. This option can be an appeal to building owners as it has some evident economic benefits.
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spelling doaj.art-26bcf0a9d5894ac89347a3cc19e55a742023-11-09T02:46:58ZengKhon Kaen UniversityEngineering and Applied Science Research2539-61612539-62182023-07-01504372381Analysis of potential energy and cost savings of replacing air-cooled chillers with water-cooled chillers: A case study in hotel building in tropical climateArka Dwinanda SoewonoIvan Agustinus KusmantoMarten DarmawanSheila TobingSelecting the type of chillers to be used in commercial buildings is critical considering their high energy consumption, which consequently requires the use of chillers with higher efficiency in order to improve the energy efficiency of buildings and reduce their carbon footprint. Through a case study in a commercial resort, this research presents an energy consumption analysis of the replacement of air-cooled chillers with water-cooled chillers. The energy savings were calculated based on not only the simulation software but also the actual energy consumption data after the installation of the water-cooled chillers. The energy analysis indicated that the use of water-cooled chillers to substitute the air-cooled chillers in the resort resulted in energy saving of around 17.5% with a reduction of 2860 tonnes of CO2 equivalent emission per year. Meanwhile, the cost analysis showed that the life-cycle cost of the water-cooled chillers is around 13.4% less. These findings demonstrate the potential of using water-cooled chillers as a replacement for air-cooled chillers in existing commercial buildings to reduce energy consumption and its associated carbon emission without compromising the buildings’ indoor comfort. This option can be an appeal to building owners as it has some evident economic benefits.https://ph01.tci-thaijo.org/index.php/easr/article/view/252559/171180chillercooling loadenergy savinglife-cycle costcarbon emission
spellingShingle Arka Dwinanda Soewono
Ivan Agustinus Kusmanto
Marten Darmawan
Sheila Tobing
Analysis of potential energy and cost savings of replacing air-cooled chillers with water-cooled chillers: A case study in hotel building in tropical climate
Engineering and Applied Science Research
chiller
cooling load
energy saving
life-cycle cost
carbon emission
title Analysis of potential energy and cost savings of replacing air-cooled chillers with water-cooled chillers: A case study in hotel building in tropical climate
title_full Analysis of potential energy and cost savings of replacing air-cooled chillers with water-cooled chillers: A case study in hotel building in tropical climate
title_fullStr Analysis of potential energy and cost savings of replacing air-cooled chillers with water-cooled chillers: A case study in hotel building in tropical climate
title_full_unstemmed Analysis of potential energy and cost savings of replacing air-cooled chillers with water-cooled chillers: A case study in hotel building in tropical climate
title_short Analysis of potential energy and cost savings of replacing air-cooled chillers with water-cooled chillers: A case study in hotel building in tropical climate
title_sort analysis of potential energy and cost savings of replacing air cooled chillers with water cooled chillers a case study in hotel building in tropical climate
topic chiller
cooling load
energy saving
life-cycle cost
carbon emission
url https://ph01.tci-thaijo.org/index.php/easr/article/view/252559/171180
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AT ivanagustinuskusmanto analysisofpotentialenergyandcostsavingsofreplacingaircooledchillerswithwatercooledchillersacasestudyinhotelbuildingintropicalclimate
AT martendarmawan analysisofpotentialenergyandcostsavingsofreplacingaircooledchillerswithwatercooledchillersacasestudyinhotelbuildingintropicalclimate
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