Optimal design of photovoltaic shading systems for multi-story buildings

Xue  Li; Jinqing  Peng; Nianping  Li; Yupeng  Wu; Yueping Fang; Tao Li; Meng  Wang; Chunlei  Wang

doi:10.1016/j.jclepro.2019.01.246

Optimal design of photovoltaic shading systems for multi-story buildings

Xue Li, Jinqing Peng, Nianping Li, Yupeng Wu, Yueping Fang, Tao Li, Meng Wang, Chunlei Wang

School of Energy, Construction and Environment

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

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Abstract

This study provides new insights into the comprehensive energy and economic performances of photovoltaic shading systems (PVSS) in multi-story buildings. A numerical shading model was developed to evaluate the shading effect from an upper PVSS row on its subjacent row. Simulation models based on EnergyPlus were developed to analyze the net electricity consumption (NEC) of PVSS with different tilt angles and widths in different climates. Benefit per capacity (BC) and the cost of benefit (CB) indicators were used to analyze the economic performances of PVSS. Finally, the optimum PVSS tilt angles and widths in different cities were obtained. Harbin, Beijing, Changsha, Kunming, and Guangzhou, were selected as representative cities for different geographical and climatic conditions. The results indicate that the optimum tilt angles for PVSS installed in Harbin, Beijing, Changsha, Kunming and Guangzhou are 55°, 50°, 40°, 40° and 30°, respectively. Optimum PVSS width for all five cities is 1.156m (7 columns of standard solar cells). PVSS installed, using the optimal design scheme, in multi-story buildings have better energy-saving potentials than either rooftop photovoltaic systems or traditional power supply modes for commercial buildings in China.

Original language	English
Pages (from-to)	1024-1038
Number of pages	15
Journal	Journal of Cleaner Production
Volume	220
Early online date	28 Jan 2019
DOIs	https://doi.org/10.1016/j.jclepro.2019.01.246
Publication status	Published - 20 May 2019

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Cleaner Production. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Cleaner Production, [In -press], (2019) DOI: 10.1016/j.jclepro.2019.01.246

© 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

Photovoltaic shading systems
Numerical shading model
Net electricity consumption
Cost of benefit

UN SDGs

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

Access to Document

10.1016/j.jclepro.2019.01.246

Post-PrintAccepted author manuscript, 1.58 MBLicence: CC BY-NC-ND

Yueping Fang
- School of Energy, Construction and Environment - Assistant Professor Academic
Person: Teaching and Research

Cite this

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title = "Optimal design of photovoltaic shading systems for multi-story buildings",

abstract = "This study provides new insights into the comprehensive energy and economic performances of photovoltaic shading systems (PVSS) in multi-story buildings. A numerical shading model was developed to evaluate the shading effect from an upper PVSS row on its subjacent row. Simulation models based on EnergyPlus were developed to analyze the net electricity consumption (NEC) of PVSS with different tilt angles and widths in different climates. Benefit per capacity (BC) and the cost of benefit (CB) indicators were used to analyze the economic performances of PVSS. Finally, the optimum PVSS tilt angles and widths in different cities were obtained. Harbin, Beijing, Changsha, Kunming, and Guangzhou, were selected as representative cities for different geographical and climatic conditions. The results indicate that the optimum tilt angles for PVSS installed in Harbin, Beijing, Changsha, Kunming and Guangzhou are 55°, 50°, 40°, 40° and 30°, respectively. Optimum PVSS width for all five cities is 1.156m (7 columns of standard solar cells). PVSS installed, using the optimal design scheme, in multi-story buildings have better energy-saving potentials than either rooftop photovoltaic systems or traditional power supply modes for commercial buildings in China.",

keywords = "Photovoltaic shading systems, Numerical shading model, Net electricity consumption, Cost of benefit",

author = "Xue Li and Jinqing Peng and Nianping Li and Yupeng Wu and Yueping Fang and Tao Li and Meng Wang and Chunlei Wang",

note = "NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Journal of Cleaner Production. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Cleaner Production, [In -press], (2019) DOI: 10.1016/j.jclepro.2019.01.246 {\textcopyright} 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ ",

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AU - Li, Xue

AU - Peng, Jinqing

AU - Li, Nianping

AU - Wu, Yupeng

AU - Fang, Yueping

AU - Li, Tao

AU - Wang, Meng

AU - Wang, Chunlei

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Cleaner Production. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Cleaner Production, [In -press], (2019) DOI: 10.1016/j.jclepro.2019.01.246 © 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2019/5/20

Y1 - 2019/5/20

N2 - This study provides new insights into the comprehensive energy and economic performances of photovoltaic shading systems (PVSS) in multi-story buildings. A numerical shading model was developed to evaluate the shading effect from an upper PVSS row on its subjacent row. Simulation models based on EnergyPlus were developed to analyze the net electricity consumption (NEC) of PVSS with different tilt angles and widths in different climates. Benefit per capacity (BC) and the cost of benefit (CB) indicators were used to analyze the economic performances of PVSS. Finally, the optimum PVSS tilt angles and widths in different cities were obtained. Harbin, Beijing, Changsha, Kunming, and Guangzhou, were selected as representative cities for different geographical and climatic conditions. The results indicate that the optimum tilt angles for PVSS installed in Harbin, Beijing, Changsha, Kunming and Guangzhou are 55°, 50°, 40°, 40° and 30°, respectively. Optimum PVSS width for all five cities is 1.156m (7 columns of standard solar cells). PVSS installed, using the optimal design scheme, in multi-story buildings have better energy-saving potentials than either rooftop photovoltaic systems or traditional power supply modes for commercial buildings in China.

AB - This study provides new insights into the comprehensive energy and economic performances of photovoltaic shading systems (PVSS) in multi-story buildings. A numerical shading model was developed to evaluate the shading effect from an upper PVSS row on its subjacent row. Simulation models based on EnergyPlus were developed to analyze the net electricity consumption (NEC) of PVSS with different tilt angles and widths in different climates. Benefit per capacity (BC) and the cost of benefit (CB) indicators were used to analyze the economic performances of PVSS. Finally, the optimum PVSS tilt angles and widths in different cities were obtained. Harbin, Beijing, Changsha, Kunming, and Guangzhou, were selected as representative cities for different geographical and climatic conditions. The results indicate that the optimum tilt angles for PVSS installed in Harbin, Beijing, Changsha, Kunming and Guangzhou are 55°, 50°, 40°, 40° and 30°, respectively. Optimum PVSS width for all five cities is 1.156m (7 columns of standard solar cells). PVSS installed, using the optimal design scheme, in multi-story buildings have better energy-saving potentials than either rooftop photovoltaic systems or traditional power supply modes for commercial buildings in China.

KW - Photovoltaic shading systems

KW - Numerical shading model

KW - Net electricity consumption

KW - Cost of benefit

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DO - 10.1016/j.jclepro.2019.01.246

M3 - Article

SN - 0959-6526

VL - 220

SP - 1024

EP - 1038

JO - Journal of Cleaner Production

JF - Journal of Cleaner Production

ER -

Optimal design of photovoltaic shading systems for multi-story buildings

Abstract

Bibliographical note

Keywords

UN SDGs

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Yueping Fang

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