Karafan Journal

Karafan Journal

Analysis and Evaluation of the Performance of Horizontal and Sloped Roofs in BAPV and BIPV Solar Systems (Case Study: Urmia City)

Document Type : Original Article

Authors
Parya Shafipour Yourdshahi 1
Hossein Soleimani 2
1 Faculty Member, Department of Architectural and Urban Planning, Technical and Vocational University (TVU), Tehran, Iran.
2 Assistant Professor, Department of Electrical Engineering, Technical and Vocational University, Tehran, Iran.
10.48301/kssa.2023.380918.2413
Abstract
Today, due to the increase in greenhouse gas concentrations and environmental pollution caused by fossil fuels, there is a great emphasis on using solar energy as a clean source of electricity generation. Most solar systems used in the world are of two types: BAPV (Building Applied Photovoltaic) and BIPV (Building Integrated Photovoltaic). In this study, the BAPV and BIPV solar systems and their performance on horizontal and sloping roofs in Urmia city were investigated. For this purpose, the effect of the slope angle on the panel efficiency and annual energy production was examined at different angles using the PVsyst 7.2 simulation software. The simulation results showed that the proposed system for a sloping roof with a 35-degree angle had the highest solar energy absorption rate. Comparing the panel efficiency on a sloping roof with a 35-degree angle and a horizontal roof, it was found that with the same number of panels, the efficiency of panels on a sloping roof in the BAPV system was 16% higher and in the BIPV system was 14% higher than that of a horizontal roof. Moreover, the amount of unused solar energy on sloping roofs with a 35-degree angle is 3.5% lower than that of a horizontal roof, considering the consumption pattern in BAPV and BIPV systems. Additionally, by sloping the roof at a 35-degree angle, the accessible space in the examined sample increases by 20%, which can be used for installing more solar panels.
Keywords
Architecture
Solar Energy
Horizontal Roof
Sloped Roof
BAPV
BIPV
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Karafan Journal
Volume 20, Issue 4 - Serial Number 65
Art and Architecture / Agriculture
Winter 2024
Pages 297-317

  • Receive Date 21 January 2023
  • Revise Date 21 May 2023
  • Accept Date 17 June 2023