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Technical & economic evaluation of district cooling system as low carbon alternative in Kuala Lumpur City

Kuala Lumpur (KL) city which has started its initiatives to become one of the low carbon cities in Malaysia, has the potential of implementing District Cooling System (DCS) in its existing energy system. Nowadays, most office buildings in Malaysia are utilising the conventional air-conditioning at e...

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Main Authors: Liu, Wen Hui, Hashim, Haslenda, Lim, Jeng Shiun, Ab. Muis, Zarina, Liew, Peng Yen, Ho, Wai Shin
Format: Article
Published: Italian Association of Chemical Engineering - AIDIC 2017
Subjects:
TP Chemical technology
T Technology
Online Access:http://eprints.utm.my/id/eprint/66188/
http://dx.doi.org/10.3303/CET1756089
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spelling my.utm.661882017-07-17T01:56:45Z http://eprints.utm.my/id/eprint/66188/ Technical & economic evaluation of district cooling system as low carbon alternative in Kuala Lumpur City Liu, Wen Hui Hashim, Haslenda Lim, Jeng Shiun Ab. Muis, Zarina Liew, Peng Yen Ho, Wai Shin TP Chemical technology T Technology Kuala Lumpur (KL) city which has started its initiatives to become one of the low carbon cities in Malaysia, has the potential of implementing District Cooling System (DCS) in its existing energy system. Nowadays, most office buildings in Malaysia are utilising the conventional air-conditioning at each individual premise for space cooling purpose. In the development into a low carbon city, DCS could replace the conventional air-conditioners as it is more energy-efficient and subsequently reduces carbon emission to the environment. This study aims to compare and evaluate on four different cooling systems that are suitable to be implemented in KL city. A case study is created where a cooling load of 250,000 kWh/month of five office buildings in the same vicinity in KL city is to be met. Three parameters are studied to evaluate the cooling systems, namely energy consumption, costing and carbon emission, on a yearly basis. The result shows that centralised DCS is expensive in term of its initial investment and operational costs compared to individual air-conditioner. However, the type of energy source in DCS is an important factor to determine the total energy consumption and carbon emission of the cooling system. DCS that combines biogas-fired steam boiler and absorption chiller is the best option to be implemented. The system can generate own electricity to be used on-site, while the use of biogas effectively can achieve a carbon-neutral electricity production. Italian Association of Chemical Engineering - AIDIC 2017-01-04 Article PeerReviewed Liu, Wen Hui and Hashim, Haslenda and Lim, Jeng Shiun and Ab. Muis, Zarina and Liew, Peng Yen and Ho, Wai Shin (2017) Technical & economic evaluation of district cooling system as low carbon alternative in Kuala Lumpur City. Chemical Engineering Transactions, 56 . pp. 529-534. ISSN 2283-9216 http://dx.doi.org/10.3303/CET1756089 DOI:10.3303/CET1756089
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
T Technology
spellingShingle TP Chemical technology
T Technology
Liu, Wen Hui
Hashim, Haslenda
Lim, Jeng Shiun
Ab. Muis, Zarina
Liew, Peng Yen
Ho, Wai Shin
Technical & economic evaluation of district cooling system as low carbon alternative in Kuala Lumpur City
description Kuala Lumpur (KL) city which has started its initiatives to become one of the low carbon cities in Malaysia, has the potential of implementing District Cooling System (DCS) in its existing energy system. Nowadays, most office buildings in Malaysia are utilising the conventional air-conditioning at each individual premise for space cooling purpose. In the development into a low carbon city, DCS could replace the conventional air-conditioners as it is more energy-efficient and subsequently reduces carbon emission to the environment. This study aims to compare and evaluate on four different cooling systems that are suitable to be implemented in KL city. A case study is created where a cooling load of 250,000 kWh/month of five office buildings in the same vicinity in KL city is to be met. Three parameters are studied to evaluate the cooling systems, namely energy consumption, costing and carbon emission, on a yearly basis. The result shows that centralised DCS is expensive in term of its initial investment and operational costs compared to individual air-conditioner. However, the type of energy source in DCS is an important factor to determine the total energy consumption and carbon emission of the cooling system. DCS that combines biogas-fired steam boiler and absorption chiller is the best option to be implemented. The system can generate own electricity to be used on-site, while the use of biogas effectively can achieve a carbon-neutral electricity production.
format Article
author Liu, Wen Hui
Hashim, Haslenda
Lim, Jeng Shiun
Ab. Muis, Zarina
Liew, Peng Yen
Ho, Wai Shin
author_facet Liu, Wen Hui
Hashim, Haslenda
Lim, Jeng Shiun
Ab. Muis, Zarina
Liew, Peng Yen
Ho, Wai Shin
author_sort Liu, Wen Hui
title Technical & economic evaluation of district cooling system as low carbon alternative in Kuala Lumpur City
title_short Technical & economic evaluation of district cooling system as low carbon alternative in Kuala Lumpur City
title_full Technical & economic evaluation of district cooling system as low carbon alternative in Kuala Lumpur City
title_fullStr Technical & economic evaluation of district cooling system as low carbon alternative in Kuala Lumpur City
title_full_unstemmed Technical & economic evaluation of district cooling system as low carbon alternative in Kuala Lumpur City
title_sort technical & economic evaluation of district cooling system as low carbon alternative in kuala lumpur city
publisher Italian Association of Chemical Engineering - AIDIC
publishDate 2017
url http://eprints.utm.my/id/eprint/66188/
http://dx.doi.org/10.3303/CET1756089
_version_ 1643655782938443776
score 13.211869

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