Application Feasibility of Passive Radiative Cool Paint on a Stand-Alone Data Center with Adjacent Buildings

Yin Hoi Chan; Yi Fan Wang; Ka Chung Chan; Kaixin Lin; Tsz Chung Ho; Chi Yan Tso; Christopher Yu Hang Chao; Sau Chung Fu

doi:10.1007/978-981-96-6444-3_5

Application Feasibility of Passive Radiative Cool Paint on a Stand-Alone Data Center with Adjacent Buildings

Yin Hoi Chan, Yi Fan Wang, Ka Chung Chan, Kaixin Lin, Tsz Chung Ho, Chi Yan Tso, Christopher Yu Hang Chao, Sau Chung Fu^*

^*Corresponding author for this work

School of Energy and Environment

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

Unlike typical buildings that require outdoor scenic view, data centers are un-fenestrated facilities for minimizing access vulnerability and preventing unauthorized admission. As a result, data centers provide expansive surface for radiative cooler application. The energy-saving potential of a radiative cool paint on a high-rise data center was explored using a self-created site model. The east-facing wall that received the most solar radiation among the five facets obtained the highest savings in both unshaded and shaded cases. The performance of the cool paint was further improved, and outstanding cooling power of 27–30 W/m² was achieved when the cool paint was applied to both roof and walls of the data center. Moreover, this study adopted the cool paint to three different sections of the data center (lower, middle and upper) in respective cases. It was discovered that the cooling effect reduced with increasing altitude in the unshaded cases, whereas it was inconsistently affected by the presence of adjacent shading objects that have different heights in the shaded cases. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

Original language	English
Title of host publication	Proceedings of 2024 International Conference on Energy Engineering
Subtitle of host publication	Volume II
Editors	Lin Vivien Lu
Publisher	Springer
Pages	55-59
ISBN (Electronic)	978-981-96-6444-3
ISBN (Print)	978-981-96-6443-6, 978-981-96-6446-7
DOIs	https://doi.org/10.1007/978-981-96-6444-3_5
Publication status	Published - 2025
Event	2nd International Conference on Energy Engineering (ICEE2024) - The Hong Kong Polytechnic University, Hong Kong, China Duration: 29 Nov 2024 → 2 Dec 2024 http://2024.iceeconf.com

Publication series

Name	Lecture Notes in Electrical Engineering
Volume	1426
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Conference

Conference	2nd International Conference on Energy Engineering (ICEE2024)
Abbreviated title	ICEE2024
Place	Hong Kong, China
Period	29/11/24 → 2/12/24
Internet address	http://2024.iceeconf.com

Funding

This work was financially supported by Chinachem Group (project no. PolyU P0043721) and funded by the Policy Research Centre for Innovation and Technology (PReCIT), The Hong Kong Polytechnic University, Financial Support for Non-PAIR Research Centres (Projects no. PolyU P0043833), and Start-up Fund for RAPs under the Strategic Hiring Scheme from PolyU (UGC) (Projects no. PolyU P0046277). This work was also supported by Environment and Conservation Fund (Project No. 35/2022), a grant from Innovation and Technology Fund (no. ITS/128/22FP), a grant from the General Research Fund (no. 11200923), and a grant from the Research Impact Fund (no. R1018-22), the Research Grants Council of the Hong Kong Special Administrative Region, China.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

Building Energy Saving
Data center
Passive Cooling

RGC Funding Information

RGC-funded

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10.1007/978-981-96-6444-3_5

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Chan, Y. H., Wang, Y. F., Chan, K. C., Lin, K., Ho, T. C., Tso, C. Y., Chao, C. Y. H., & Fu, S. C. (2025). Application Feasibility of Passive Radiative Cool Paint on a Stand-Alone Data Center with Adjacent Buildings. In L. V. Lu (Ed.), Proceedings of 2024 International Conference on Energy Engineering: Volume II (pp. 55-59). (Lecture Notes in Electrical Engineering; Vol. 1426). Springer. https://doi.org/10.1007/978-981-96-6444-3_5

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title = "Application Feasibility of Passive Radiative Cool Paint on a Stand-Alone Data Center with Adjacent Buildings",

abstract = "Unlike typical buildings that require outdoor scenic view, data centers are un-fenestrated facilities for minimizing access vulnerability and preventing unauthorized admission. As a result, data centers provide expansive surface for radiative cooler application. The energy-saving potential of a radiative cool paint on a high-rise data center was explored using a self-created site model. The east-facing wall that received the most solar radiation among the five facets obtained the highest savings in both unshaded and shaded cases. The performance of the cool paint was further improved, and outstanding cooling power of 27–30 W/m2 was achieved when the cool paint was applied to both roof and walls of the data center. Moreover, this study adopted the cool paint to three different sections of the data center (lower, middle and upper) in respective cases. It was discovered that the cooling effect reduced with increasing altitude in the unshaded cases, whereas it was inconsistently affected by the presence of adjacent shading objects that have different heights in the shaded cases. {\textcopyright} The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.",

keywords = "Building Energy Saving, Data center, Passive Cooling",

author = "Chan, {Yin Hoi} and Wang, {Yi Fan} and Chan, {Ka Chung} and Kaixin Lin and Ho, {Tsz Chung} and Tso, {Chi Yan} and Chao, {Christopher Yu Hang} and Fu, {Sau Chung}",

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Chan, YH, Wang, YF, Chan, KC, Lin, K , Ho, TC , Tso, CY, Chao, CYH & Fu, SC 2025, Application Feasibility of Passive Radiative Cool Paint on a Stand-Alone Data Center with Adjacent Buildings. in LV Lu (ed.), Proceedings of 2024 International Conference on Energy Engineering: Volume II. Lecture Notes in Electrical Engineering, vol. 1426, Springer, pp. 55-59, 2nd International Conference on Energy Engineering (ICEE2024), Hong Kong, China, 29/11/24. https://doi.org/10.1007/978-981-96-6444-3_5

Application Feasibility of Passive Radiative Cool Paint on a Stand-Alone Data Center with Adjacent Buildings. / Chan, Yin Hoi; Wang, Yi Fan; Chan, Ka Chung et al.
Proceedings of 2024 International Conference on Energy Engineering: Volume II. ed. / Lin Vivien Lu. Springer, 2025. p. 55-59 (Lecture Notes in Electrical Engineering; Vol. 1426).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Application Feasibility of Passive Radiative Cool Paint on a Stand-Alone Data Center with Adjacent Buildings

AU - Chan, Yin Hoi

AU - Wang, Yi Fan

AU - Chan, Ka Chung

AU - Lin, Kaixin

AU - Ho, Tsz Chung

AU - Tso, Chi Yan

AU - Chao, Christopher Yu Hang

AU - Fu, Sau Chung

PY - 2025

Y1 - 2025

N2 - Unlike typical buildings that require outdoor scenic view, data centers are un-fenestrated facilities for minimizing access vulnerability and preventing unauthorized admission. As a result, data centers provide expansive surface for radiative cooler application. The energy-saving potential of a radiative cool paint on a high-rise data center was explored using a self-created site model. The east-facing wall that received the most solar radiation among the five facets obtained the highest savings in both unshaded and shaded cases. The performance of the cool paint was further improved, and outstanding cooling power of 27–30 W/m2 was achieved when the cool paint was applied to both roof and walls of the data center. Moreover, this study adopted the cool paint to three different sections of the data center (lower, middle and upper) in respective cases. It was discovered that the cooling effect reduced with increasing altitude in the unshaded cases, whereas it was inconsistently affected by the presence of adjacent shading objects that have different heights in the shaded cases. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

AB - Unlike typical buildings that require outdoor scenic view, data centers are un-fenestrated facilities for minimizing access vulnerability and preventing unauthorized admission. As a result, data centers provide expansive surface for radiative cooler application. The energy-saving potential of a radiative cool paint on a high-rise data center was explored using a self-created site model. The east-facing wall that received the most solar radiation among the five facets obtained the highest savings in both unshaded and shaded cases. The performance of the cool paint was further improved, and outstanding cooling power of 27–30 W/m2 was achieved when the cool paint was applied to both roof and walls of the data center. Moreover, this study adopted the cool paint to three different sections of the data center (lower, middle and upper) in respective cases. It was discovered that the cooling effect reduced with increasing altitude in the unshaded cases, whereas it was inconsistently affected by the presence of adjacent shading objects that have different heights in the shaded cases. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

KW - Building Energy Saving

KW - Data center

KW - Passive Cooling

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DO - 10.1007/978-981-96-6444-3_5

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 978-981-96-6443-6

SN - 978-981-96-6446-7

T3 - Lecture Notes in Electrical Engineering

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BT - Proceedings of 2024 International Conference on Energy Engineering

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ER -

Chan YH, Wang YF, Chan KC, Lin K , Ho TC , Tso CY et al. Application Feasibility of Passive Radiative Cool Paint on a Stand-Alone Data Center with Adjacent Buildings. In Lu LV, editor, Proceedings of 2024 International Conference on Energy Engineering: Volume II. Springer. 2025. p. 55-59. (Lecture Notes in Electrical Engineering). Epub 2025 May 27. doi: 10.1007/978-981-96-6444-3_5

Application Feasibility of Passive Radiative Cool Paint on a Stand-Alone Data Center with Adjacent Buildings

Abstract

Publication series

Conference

Funding

UN SDGs

Research Keywords

RGC Funding Information

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GRF: Coral-inspired and Colored Daytime Passive Radiative Coolers using Photoluminescent Carbon Dots for Cooling Power Recovery in Building Applications

RIF: A Study of Energy Harvesting and Fire Hazards Associated with Double-Skin Green Façades of Tall Green Buildings

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