Achieving net zero energy heating by integrating the building envelope as a thermal battery

Photovoltaic (PV) heating is a promising technology for achieving fossil fuel-free heating and carbon neutrality in the building sector. Cost-effective energy storage plays a critical role in PV heating to solve the temporal mismatch between supply and demand. Herein, we propose the concept of using...

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Main Authors: Zhi, Yuan, Sun, Tao, Gao, Ding, Chen, Xiaomeng, Wei, Guanqiong, Dai, Xilei, Yang, Xudong
Other Authors: School of Electrical and Electronic Engineering
Format: Journal Article
Language:English
Published: 2024
Subjects:
Online Access:https://hdl.handle.net/10356/179704
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author Zhi, Yuan
Sun, Tao
Gao, Ding
Chen, Xiaomeng
Wei, Guanqiong
Dai, Xilei
Yang, Xudong
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Zhi, Yuan
Sun, Tao
Gao, Ding
Chen, Xiaomeng
Wei, Guanqiong
Dai, Xilei
Yang, Xudong
author_sort Zhi, Yuan
collection NTU
description Photovoltaic (PV) heating is a promising technology for achieving fossil fuel-free heating and carbon neutrality in the building sector. Cost-effective energy storage plays a critical role in PV heating to solve the temporal mismatch between supply and demand. Herein, we propose the concept of using a building envelope as an active energy-storage device for a PV heating system, thus transforming the building envelope into a thermal battery. Experimental results show that the energy storage capacity of 142 kW h/m2, which is higher than that of conventional thermal storage systems. We developed a top-down macro performance assessment model to quantify the contribution of a PV heating system using a building envelope as energy storage. By our estimation, the envelope-embedded system can reduce heating-related CO2 emissions by 7435.7 tons annually in northern China. Our study provides insights into innovative energy-saving building energy storage systems that can help achieve global carbon neutrality and sustainability.
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spelling ntu-10356/1797042024-08-23T15:40:26Z Achieving net zero energy heating by integrating the building envelope as a thermal battery Zhi, Yuan Sun, Tao Gao, Ding Chen, Xiaomeng Wei, Guanqiong Dai, Xilei Yang, Xudong School of Electrical and Electronic Engineering Engineering Electrochemical energy storage Energy systems Photovoltaic (PV) heating is a promising technology for achieving fossil fuel-free heating and carbon neutrality in the building sector. Cost-effective energy storage plays a critical role in PV heating to solve the temporal mismatch between supply and demand. Herein, we propose the concept of using a building envelope as an active energy-storage device for a PV heating system, thus transforming the building envelope into a thermal battery. Experimental results show that the energy storage capacity of 142 kW h/m2, which is higher than that of conventional thermal storage systems. We developed a top-down macro performance assessment model to quantify the contribution of a PV heating system using a building envelope as energy storage. By our estimation, the envelope-embedded system can reduce heating-related CO2 emissions by 7435.7 tons annually in northern China. Our study provides insights into innovative energy-saving building energy storage systems that can help achieve global carbon neutrality and sustainability. Published version This study was supported by the National Natural Science Foundation of China (Grant No. 51838007), the Beijing Key Laboratory of Indoor Air Quality Evaluation and Control, the Key Laboratory of Eco Planning & Green Building (Tsinghua University), and the Ministry of Education of China. 2024-08-19T02:40:09Z 2024-08-19T02:40:09Z 2024 Journal Article Zhi, Y., Sun, T., Gao, D., Chen, X., Wei, G., Dai, X. & Yang, X. (2024). Achieving net zero energy heating by integrating the building envelope as a thermal battery. IScience, 27(6), 109892-. https://dx.doi.org/10.1016/j.isci.2024.109892 2589-0042 https://hdl.handle.net/10356/179704 10.1016/j.isci.2024.109892 38812538 2-s2.0-85193626225 6 27 109892 en iScience © 2024 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). application/pdf
spellingShingle Engineering
Electrochemical energy storage
Energy systems
Zhi, Yuan
Sun, Tao
Gao, Ding
Chen, Xiaomeng
Wei, Guanqiong
Dai, Xilei
Yang, Xudong
Achieving net zero energy heating by integrating the building envelope as a thermal battery
title Achieving net zero energy heating by integrating the building envelope as a thermal battery
title_full Achieving net zero energy heating by integrating the building envelope as a thermal battery
title_fullStr Achieving net zero energy heating by integrating the building envelope as a thermal battery
title_full_unstemmed Achieving net zero energy heating by integrating the building envelope as a thermal battery
title_short Achieving net zero energy heating by integrating the building envelope as a thermal battery
title_sort achieving net zero energy heating by integrating the building envelope as a thermal battery
topic Engineering
Electrochemical energy storage
Energy systems
url https://hdl.handle.net/10356/179704
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