Next Article in Journal
Green Diesel: Biomass Feedstocks, Production Technologies, Catalytic Research, Fuel Properties and Performance in Compression Ignition Internal Combustion Engines
Next Article in Special Issue
The Effects of Courtyards on the Thermal Performance of a Vernacular House in a Hot-Summer and Cold-Winter Climate
Previous Article in Journal
Technology Roadmap for Eco-Friendly Building Materials Industry
Previous Article in Special Issue
Glazing Sizing in Large Atrium Buildings: A Perspective of Balancing Daylight Quantity and Visual Comfort
Article

Thermal Comfort Evaluation of Rooms Installed with STPV Windows

1
Key Laboratory of Deep Underground Science and Engineering (Ministry of Education), School of Architecture and Environment, Sichuan University, Chengdu 610065, China
2
Institute of New Energy and Low-carbon Technology, Sichuan University, Chengdu 610065, China
3
Suzhou Talesun Solar Technologies Co., Ltd., Suzhou 215542, China
*
Author to whom correspondence should be addressed.
Energies 2019, 12(5), 808; https://doi.org/10.3390/en12050808
Received: 25 January 2019 / Revised: 21 February 2019 / Accepted: 26 February 2019 / Published: 28 February 2019
Thermal comfort is an important aspect to take into consideration for the indoor environment of a building integrated with a semi-transparent Photovoltaics (STPV) system. The thermal comfort of units with photovoltaic windows and that of conventional windows, which is an ordinary without PV, were evaluated via on-site tests and questionnaires. Using the thermal comfort investigation of the test rig, the maximum difference in air temperature was found to be around 5 °C between test unit and comparison unit. The predicted mean vote (PMV)–predicted percentage dissatisfied (PPD) value of the test unit was better than that of the comparison unit. It was observed that on sunny days, the PMV value ranged from 0.2 (nature) to 1.3 (slightly warm) in the test unit, and that of the comparison unit was 0.7 (slightly warm) to 2.0 (warm), thereby providing better thermal comfort, especially during mornings. The maximum difference in PPD values was found to reach 27% between the two units at noon. On cloudy days, the difference was negligible, and the thermal sensation between the foot and the head were almost the same. Fifty respondents were asked to complete a carefully designed questionnaire. The thermal sensation of the test unit was better than that of comparison unit, which corresponded with the test results. Thermal, lighting, acoustic, and other environment comfort scores were combined, and the acceptance of the test unit with the STPV windows was found to be 73.8%. The thermal sensation difference between men and women was around 5%. Thus, during summer, STPV windows can improve the thermal comfort and potentially reduce the air-conditioning load. View Full-Text
Keywords: Semi-transparent PV (STPV) windows; thermal comfort; on-site test; questionnaire; PMV-PPD Semi-transparent PV (STPV) windows; thermal comfort; on-site test; questionnaire; PMV-PPD
Show Figures

Figure 1

MDPI and ACS Style

Tian, H.; Zhang, W.; Xie, L.; Ni, Z.; Wei, Q.; Wu, X.; Wang, W.; Chen, M. Thermal Comfort Evaluation of Rooms Installed with STPV Windows. Energies 2019, 12, 808. https://doi.org/10.3390/en12050808

AMA Style

Tian H, Zhang W, Xie L, Ni Z, Wei Q, Wu X, Wang W, Chen M. Thermal Comfort Evaluation of Rooms Installed with STPV Windows. Energies. 2019; 12(5):808. https://doi.org/10.3390/en12050808

Chicago/Turabian Style

Tian, Hao, Wei Zhang, Lingzhi Xie, Zhichun Ni, Qingzhu Wei, Xinwen Wu, Wei Wang, and Mo Chen. 2019. "Thermal Comfort Evaluation of Rooms Installed with STPV Windows" Energies 12, no. 5: 808. https://doi.org/10.3390/en12050808

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop