Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.enbuild.2012.06.005
Title: Solar heat gain coefficient measurement of semi-transparent photovoltaic modules with indoor calorimetric hot box and solar simulator
Authors: Chen, F.
Wittkopf, S.K. 
Khai Ng, P.
Du, H.
Keywords: Calorimetric hot box
Semi-transparent photovoltaic glazing
Solar heat gain coefficient measurement
Solar simulator
Issue Date: 2012
Citation: Chen, F., Wittkopf, S.K., Khai Ng, P., Du, H. (2012). Solar heat gain coefficient measurement of semi-transparent photovoltaic modules with indoor calorimetric hot box and solar simulator. Energy and Buildings 53 : 74-84. ScholarBank@NUS Repository. https://doi.org/10.1016/j.enbuild.2012.06.005
Abstract: In tropical Singapore, buildings receive a high amount of solar radiation. Windows should therefore consist of solar control glazing with a low solar heat gain coefficient (SHGC) and high visible light transmittance to reduce the energy consumption for air-conditioning and electrical lighting respectively. Due to the rising demand for on-site electricity generation, photovoltaic modules are increasingly used in buildings, initially as roof-top systems, but in recent years there are also semi-transparent photovoltaic (STPV) being integrated into the faade or overhead glazing. However, their SHGC is usually not reported, potentially preventing STPV from widespread adoption. The paper presents measurements and novel presentations of SHGC for selected thin-film STPV glazing. It introduces SERIS' indoor calorimetric hot box and solar simulator including a documentation of environmental conditions and calibrations. A sensitivity analysis concluded that the SHGC measurement is mainly sensitive to the spectrum of the solar simulator and reflection properties of the absorber plate. A correction factor was introduced and the measured results compare well with simulations. In addition, SHGC values for selected STPV are presented as (a) angular dependent and (b) load dependent. The results show that the SHGC is sensitive to the incident angle of solar radiation. Particularly for incident angles above 45°, which would be typical for facades in the tropics, the SHGC reduces significantly, compared to the default at 0°. The SHGC reduces only marginally when an electrical load is connected. Higher PV efficiencies would result in more energy being converted into electricity and not into re-radiating heat and therefore producing a lower SHGC. © 2012 Elsevier B.V.
Source Title: Energy and Buildings
URI: http://scholarbank.nus.edu.sg/handle/10635/45462
ISSN: 03787788
DOI: 10.1016/j.enbuild.2012.06.005
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

41
checked on Dec 18, 2018

WEB OF SCIENCETM
Citations

34
checked on Dec 18, 2018

Page view(s)

224
checked on Dec 8, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.