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Facade Design Analysis to Reduce the Cooling Load of Ar Rozy Hospital, Probolinggo City, Based on the WWR, AASF and Glass U-Value Aspect

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Abstract:

Hospitals, as commercial buildings within the healthcare sector, tend to have high energy consumption, especially in cooling loads. This study evaluates the existing façade design by creating alternative façade configurations to decrease cooling energy use in the Emergency Department of RSUD Ar Rozy Kota Probolinggo. The research aims to analyze the impact of façade elements, including the Window-to-Wall Ratio (WWR), the Annual Average Shading Factor (AASF) from added sun shading (overhangs or fins), and the U-value of curtain wall glass materials, on cooling energy efficiency. The method involves energy simulation using EDGE Buildings software, followed by multiple linear regression analysis to assess the influence of each façade element. Results indicate that the combination of these three elements significantly contributes to cooling energy savings, with an average reduction of 41.54% across all design alternatives and a coefficient of determination reaching 97%.

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Periodical:

Construction Technologies and Architecture (Volume 24)

Pages:

63-71

DOI:

https://doi.org/10.4028/p-TB6gLx

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Online since:

June 2026

Authors:

Ghina Nabiel Sukma, Dian Ariestadi*

Keywords:

Annual Average Shading Factor, Cooling Load, Edge Building Software, Facade Design, U-Value, Window-to-Wall Ratio

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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