A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in China

A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in China

The building sector accounts for more than 40% of the global energy consumption. This consumption may be lowered by reducing building energy requirements and using renewable energy in building energy supply systems. Therefore, a nearly zero-energy building, incorporating a solar heating and cooling...

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Main Authors: Zhifeng Sun, Yaohua Zhao, Wei Xu, Xinyu Zhang, Huai Li, Min Wang, Tao He, Dongxu Wang
Format: Article
Language:English
Published: Hindawi Limited 2017-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2017/2053146
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spelling doaj-45e919b8fb2145b9aa226b00ce5c41c72020-11-24T21:48:02ZengHindawi LimitedInternational Journal of Photoenergy1110-662X1687-529X2017-01-01201710.1155/2017/20531462053146A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in ChinaZhifeng Sun0Yaohua Zhao1Wei Xu2Xinyu Zhang3Huai Li4Min Wang5Tao He6Dongxu Wang7College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, ChinaCollege of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, ChinaInstitute of Building Environment and Energy, China Academy of Building Research, Beijing 100013, ChinaInstitute of Building Environment and Energy, China Academy of Building Research, Beijing 100013, ChinaInstitute of Building Environment and Energy, China Academy of Building Research, Beijing 100013, ChinaInstitute of Building Environment and Energy, China Academy of Building Research, Beijing 100013, ChinaInstitute of Building Environment and Energy, China Academy of Building Research, Beijing 100013, ChinaInstitute of Building Environment and Energy, China Academy of Building Research, Beijing 100013, ChinaThe building sector accounts for more than 40% of the global energy consumption. This consumption may be lowered by reducing building energy requirements and using renewable energy in building energy supply systems. Therefore, a nearly zero-energy building, incorporating a solar heating and cooling system, was designed and built in Beijing, China. The system included a 35.17 kW cooling (10-RT) absorption chiller, an evacuated tube solar collector with an aperture area of 320.6 m2, two hot-water storage tanks (with capacities of 10 m3 and 30 m3, respectively), two cold-water storage tanks (both with a capacity of 10 m3), and a 281 kW cooling tower. Heat pump systems were used as a backup. At a value of 25.2%, the obtained solar fraction associated with the cooling load was close to the design target of 30%. In addition, the daily solar collector efficiency and the chiller coefficient of performance (COP) varied from 0.327 to 0.507 and 0.49 to 0.70, respectively.http://dx.doi.org/10.1155/2017/2053146
collection DOAJ
language English
format Article
sources DOAJ
author Zhifeng Sun
Yaohua Zhao
Wei Xu
Xinyu Zhang
Huai Li
Min Wang
Tao He
Dongxu Wang
spellingShingle Zhifeng Sun
Yaohua Zhao
Wei Xu
Xinyu Zhang
Huai Li
Min Wang
Tao He
Dongxu Wang
A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in China
International Journal of Photoenergy
author_facet Zhifeng Sun
Yaohua Zhao
Wei Xu
Xinyu Zhang
Huai Li
Min Wang
Tao He
Dongxu Wang
author_sort Zhifeng Sun
title A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in China
title_short A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in China
title_full A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in China
title_fullStr A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in China
title_full_unstemmed A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in China
title_sort solar heating and cooling system in a nearly zero-energy building: a case study in china
publisher Hindawi Limited
series International Journal of Photoenergy
issn 1110-662X
1687-529X
publishDate 2017-01-01
description The building sector accounts for more than 40% of the global energy consumption. This consumption may be lowered by reducing building energy requirements and using renewable energy in building energy supply systems. Therefore, a nearly zero-energy building, incorporating a solar heating and cooling system, was designed and built in Beijing, China. The system included a 35.17 kW cooling (10-RT) absorption chiller, an evacuated tube solar collector with an aperture area of 320.6 m2, two hot-water storage tanks (with capacities of 10 m3 and 30 m3, respectively), two cold-water storage tanks (both with a capacity of 10 m3), and a 281 kW cooling tower. Heat pump systems were used as a backup. At a value of 25.2%, the obtained solar fraction associated with the cooling load was close to the design target of 30%. In addition, the daily solar collector efficiency and the chiller coefficient of performance (COP) varied from 0.327 to 0.507 and 0.49 to 0.70, respectively.
url http://dx.doi.org/10.1155/2017/2053146
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