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Optimization of chiller sequencing control for district cooling system at the Hong Kong-Zhuhai-Macao Bridge Hong Kong Port

Optimization of chiller sequencing control for district cooling system at the Hong... To mitigate the climate change issue, the Government of the Hong Kong Special Administrative Region (HKSAR) proposed the “Hong Kong Climate Change Plan 2030+” with an ambitious goal of reducing the carbon intensity to 65%–70% below 2005 levels by 2030. To achieve this target, the HKSAR Government has developed two District Cooling Systems (DCS) to promote the use of district energy system, enhancing the overall energy efficiency for cooling purpose. One of the government-owned DCSs is located at the Hong Kong-Zhuhai-Macao Bridge Hong Kong Port (HZMB-HKP), producing a total design cooling capacity of 24.16 MW to passenger clearance building and ancillary buildings there. This paper demonstrates how the DCS at HZMB-HKP could enhance overall energy efficiency for cooling purpose, through proper chiller sequencing control, and reduce CO2 emission significantly. An optimal seasonal chiller operation mode is also suggested to be adopted at the DCS at HZMB-HKP from cost-effectiveness perspective.Practical application: District Cooling Systems are considered as a promising solution to alleviate the climate change issue. An optimized chiller sequencing control strategy of DCS can effectively reduce overall cooling energy consumption, so as to achieve carbon neutrality. This paper outlines a case study on a cost-effective operational control strategy of the DCS at HZMB-HKP. The analysis of both the theoretical and practical sequencing control strategy can be taken as a reference for DCS development in the future. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Building Services Engineering Research and Technology: An International Journal SAGE

Optimization of chiller sequencing control for district cooling system at the Hong Kong-Zhuhai-Macao Bridge Hong Kong Port

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References (6)

Publisher
SAGE
Copyright
© The Author(s) 2022
ISSN
0143-6244
eISSN
1477-0849
DOI
10.1177/01436244221088778
Publisher site
See Article on Publisher Site

Abstract

To mitigate the climate change issue, the Government of the Hong Kong Special Administrative Region (HKSAR) proposed the “Hong Kong Climate Change Plan 2030+” with an ambitious goal of reducing the carbon intensity to 65%–70% below 2005 levels by 2030. To achieve this target, the HKSAR Government has developed two District Cooling Systems (DCS) to promote the use of district energy system, enhancing the overall energy efficiency for cooling purpose. One of the government-owned DCSs is located at the Hong Kong-Zhuhai-Macao Bridge Hong Kong Port (HZMB-HKP), producing a total design cooling capacity of 24.16 MW to passenger clearance building and ancillary buildings there. This paper demonstrates how the DCS at HZMB-HKP could enhance overall energy efficiency for cooling purpose, through proper chiller sequencing control, and reduce CO2 emission significantly. An optimal seasonal chiller operation mode is also suggested to be adopted at the DCS at HZMB-HKP from cost-effectiveness perspective.Practical application: District Cooling Systems are considered as a promising solution to alleviate the climate change issue. An optimized chiller sequencing control strategy of DCS can effectively reduce overall cooling energy consumption, so as to achieve carbon neutrality. This paper outlines a case study on a cost-effective operational control strategy of the DCS at HZMB-HKP. The analysis of both the theoretical and practical sequencing control strategy can be taken as a reference for DCS development in the future.

Journal

Building Services Engineering Research and Technology: An International JournalSAGE

Published: Sep 1, 2022

Keywords: district cooling system; chiller sequencing; energy efficiency; CO2 emission; retro-commissioning

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