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Title: Improving building efficiency using low-e coating based retrofit double glazing with solar films
Authors: Somasundaram, Sivanand
Thangavelu, Sundar Raj
Chong, Alex
Keywords: Engineering::Materials
Issue Date: 2020
Source: Somasundaram, S., Thangavelu, S. R. & Chong, A. (2020). Improving building efficiency using low-e coating based retrofit double glazing with solar films. Applied Thermal Engineering, 171, 115064-.
Journal: Applied Thermal Engineering
Abstract: As more new green buildings are being built, the daunting task of retrofitting old building stock to make them sustainable still exists. This paper discusses primarily about retrofit double glazing, which is easily implementable for old building stock, and discusses other complementary steps to be taken to maximize the energy saving impact of the retrofit double-glazing solution. These include installation of a solar film prior to retrofit installation, with considerations for optimal natural day lighting, active scheduling of air-conditioning systems, and lighting systems as well. It was observed that combination installation of solar film with retrofit double glazing reduces the annual HVAC energy consumption by up to 20%. Active scheduling of compressor operation can further reduce HVAC energy consumption by about 7%. Finally, active lighting control which autonomously adapts according to available daylight can increase the total savings further by up to 17%. In summary, simple, cost effective retrofit solutions leading to an existing building's annual electricity reduction of 30–40% is demonstrated.
ISSN: 1359-4311
DOI: 10.1016/j.applthermaleng.2020.115064
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Experimental Power Grid Centre
Rights: © 2020 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:ERI@N Journal Articles

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