Integrated 3E impacts of photovoltaic systems: A comparative study of panels and windows
This paper evaluates the integrated benefits of photovoltaic (PV) building systems in terms of energy, economy, and environment, providing a scientific basis for low-carbon sustainable buildings. Using the renovation project of a hospital in Ordos, Inner Mongolia, as a case study, we simulated energ...
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Elsevier
2025-02-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24017672 |
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| author | Na Zhao Jia Zhang Chao Ding |
| author_facet | Na Zhao Jia Zhang Chao Ding |
| author_sort | Na Zhao |
| collection | DOAJ |
| description | This paper evaluates the integrated benefits of photovoltaic (PV) building systems in terms of energy, economy, and environment, providing a scientific basis for low-carbon sustainable buildings. Using the renovation project of a hospital in Ordos, Inner Mongolia, as a case study, we simulated energy consumption and power generation of PV-integrated buildings with EnergyPlus and JEPlus. The study considers three retrofit scenarios: installing PV panels on the exterior walls and roofs; replacing external windows with PV windows; combining both PV panels and windows. The impact on building energy consumption, carbon emissions, and economic costs was examined under various window-to-wall ratios (WWR) and PV power capacities. A multi-objective optimization analysis was performed using the TOPSIS method to identify the most balanced solutions. The results indicate that optimal PV system configurations should balance energy consumption, carbon emissions, and costs. For scenario 1, a WWR of 0.4 and 100 W power yield the best performance. For scenario 2, a WWR of 0.2 with type 3 PV windows is optimal. For scenario 3, a WWR of 0.2, 300 W power, and type 1 PV windows effectively reduce energy consumption and carbon emissions while maximizing economic benefits. |
| format | Article |
| id | doaj-art-029d832aa0ce4045bd047671aadf409a |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-029d832aa0ce4045bd047671aadf409a2025-02-02T05:27:18ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105736Integrated 3E impacts of photovoltaic systems: A comparative study of panels and windowsNa Zhao0Jia Zhang1Chao Ding2College of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Intelligent Construction and Operation Engineering Research Center at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, ChinaCollege of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Intelligent Construction and Operation Engineering Research Center at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, China; Corresponding author. College of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou, 014010, ChinaCollege of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou, 014010, China; Intelligent Construction and Operation Engineering Research Center at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, 014010, ChinaThis paper evaluates the integrated benefits of photovoltaic (PV) building systems in terms of energy, economy, and environment, providing a scientific basis for low-carbon sustainable buildings. Using the renovation project of a hospital in Ordos, Inner Mongolia, as a case study, we simulated energy consumption and power generation of PV-integrated buildings with EnergyPlus and JEPlus. The study considers three retrofit scenarios: installing PV panels on the exterior walls and roofs; replacing external windows with PV windows; combining both PV panels and windows. The impact on building energy consumption, carbon emissions, and economic costs was examined under various window-to-wall ratios (WWR) and PV power capacities. A multi-objective optimization analysis was performed using the TOPSIS method to identify the most balanced solutions. The results indicate that optimal PV system configurations should balance energy consumption, carbon emissions, and costs. For scenario 1, a WWR of 0.4 and 100 W power yield the best performance. For scenario 2, a WWR of 0.2 with type 3 PV windows is optimal. For scenario 3, a WWR of 0.2, 300 W power, and type 1 PV windows effectively reduce energy consumption and carbon emissions while maximizing economic benefits.http://www.sciencedirect.com/science/article/pii/S2214157X24017672Multi-objective optimizationBuilding energy consumptionPhotovoltaic modulesEnvironmental benefitsEconomic benefits |
| spellingShingle | Na Zhao Jia Zhang Chao Ding Integrated 3E impacts of photovoltaic systems: A comparative study of panels and windows Case Studies in Thermal Engineering Multi-objective optimization Building energy consumption Photovoltaic modules Environmental benefits Economic benefits |
| title | Integrated 3E impacts of photovoltaic systems: A comparative study of panels and windows |
| title_full | Integrated 3E impacts of photovoltaic systems: A comparative study of panels and windows |
| title_fullStr | Integrated 3E impacts of photovoltaic systems: A comparative study of panels and windows |
| title_full_unstemmed | Integrated 3E impacts of photovoltaic systems: A comparative study of panels and windows |
| title_short | Integrated 3E impacts of photovoltaic systems: A comparative study of panels and windows |
| title_sort | integrated 3e impacts of photovoltaic systems a comparative study of panels and windows |
| topic | Multi-objective optimization Building energy consumption Photovoltaic modules Environmental benefits Economic benefits |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24017672 |
| work_keys_str_mv | AT nazhao integrated3eimpactsofphotovoltaicsystemsacomparativestudyofpanelsandwindows AT jiazhang integrated3eimpactsofphotovoltaicsystemsacomparativestudyofpanelsandwindows AT chaoding integrated3eimpactsofphotovoltaicsystemsacomparativestudyofpanelsandwindows |