Thermal performance assessment of envelope retrofit strategies for office spaces in composite climates

Sharma, Rahul, Saikia, Pranaynil, Corcoran, Lloyd, Rakshit, Dibakar and Ugalde Loo, Carlos ORCID: https://orcid.org/0000-0001-6361-4454 2026. Thermal performance assessment of envelope retrofit strategies for office spaces in composite climates. Presented at: 17th International Conference on Applied Energy (ICAE2025), Bangkok, Thailand, 8-12 December 2025. Energy Proceedings. , vol.63 Applied Energy Innovation Institute (AEii), 10.46855/energy-proceedings-12180

PDF - Published Version Available under License Creative Commons Attribution. Download (1MB)

Abstract

Building envelope retrofit strategies enable reducing cooling loads in warm climates and optimising energy use. However, these strategies may be tailored to specific building types and their effectiveness depends on the climatic conditions they operate under. This paper presents an open-source model to assess the effects of envelope retrofits under the climatic conditions of India. Using OpenModelica, an office building located at Delhi was modelled using real construction and occupancy data. The indoor heat gain through the building envelope was quantified for different retrofitting scenarios. Results show thermal insulation is more effective than phase change material in mitigating heat gain and can reduce the heat gain by up to 400 W in summer. The findings offer insights for sustainable cooling, whereas the developed model offers an open-source tool to quantify cooling demand in office buildings.

Item Type:	Conference or Workshop Item - published (Paper)
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Publisher:	Applied Energy Innovation Institute (AEii)
ISSN:	2004-2965
Date of First Compliant Deposit:	15 April 2026
Last Modified:	09 Jun 2026 15:48
URI:	https://orca.cardiff.ac.uk/id/eprint/186403

Actions (repository staff only)

Edit Item