Sensitivity Analysis for Decisive Design Parameters for Energy and Indoor Visual Performances of a Glazed Façade Office Building

Ramkishore Singh (), Dharam Buddhi, Samar Thapa, Chander Prakash (), Rajesh Singh, Atul Sharma, Shane Sheoran and Kuldeep Kumar Saxena
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Ramkishore Singh: School of Chemical Engineering and Physical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road, Phagwara 144411, Panjab, India
Dharam Buddhi: Uttaranchal Institute of Technology, Uttaranchal University, Dehradun 248007, Uttarakhand, India
Samar Thapa: Department of Environmental Sciences, Information and Statistics, Ca’Foscari University of Venice, 30172 Venice, Italy
Chander Prakash: School of Mechanical Engineering, Lovely Professional University, Jalandhar-Delhi G.T. Road, Phagwara 144411, Panjab, India
Rajesh Singh: Department of Research and Development, Uttaranchal University, Dehradun 248007, Uttarakhand, India
Atul Sharma: Department of Basic Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology, Amethi 229304, Uttar Pradesh, India
Shane Sheoran: Future Industries Institute, Mawson Lakes Campus, University of South Australia, Mawson Lakes, SA 5095, Australia
Kuldeep Kumar Saxena: Department of Mechanical Engineering, GLA University, Mathura 281406, Uttar Pradesh, India

Sustainability, 2022, vol. 14, issue 21, 1-27

Abstract: The large size of a glazed component allows greater access to natural light inside and a wider view of the outdoors while protecting the inside from extreme weather conditions. However, glazed components make buildings energy inefficient compared to opaque components if not designed suitably, and sometimes they create glare discomforts too. In order to protect against excessive natural light and direct sunlight and for privacy, dynamic shading devices are integrated into the glazed façade. In this study, the impact of various glazing and shading design parameters has been investigated by performing uncertainty and sensitivity analyses. The uncertainty analysis indicates that the variance coefficients for the source energy use, lighting energy use, useful daylight illuminance (UDI), and shade-deployed time fraction are in the ranges of 15.04–30.47, 39.05–45.06, 40.57–49.92, and 19.35–52%, respectively. The dispersion in the energy and indoor visual performance is evident by the large variation in the source energy consumption and UDI (500–2000), which vary in the ranges of 250–450 kWh/(m 2 -year) and 5–90%. Furthermore, a sensitivity analysis identified the window-to-wall ratio (WWR), aspect ratio (ASR), glazing type (Gt), absorptance of the wall (Aw), and shade transmittance (ST) as major influences of the parameters. Each of the identified parameters has a different proportionate impact depending on the façade orientation and performance parameters.

Keywords: building energy simulation; indoor visual comfort; sustainable cities; dynamic glazed façade; probability density function; sensitivity analysis (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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