UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Flexible management of heat/electricity of novel PV/T systems with spectrum regulation by Ag nanofluids

Zhang, C; Shen, C; Wei, S; Zhang, Y; Sun, C; (2021) Flexible management of heat/electricity of novel PV/T systems with spectrum regulation by Ag nanofluids. Energy , 221 , Article 119903. 10.1016/j.energy.2021.119903. Green open access

[thumbnail of Wei_Final_Flexible management of heatelectricity of novel PVT systems with spectrum regulation by Ag nanofluids.pdf]
Preview
Text
Wei_Final_Flexible management of heatelectricity of novel PVT systems with spectrum regulation by Ag nanofluids.pdf - Accepted Version

Download (1MB) | Preview

Abstract

Conventional PV/T systems generally focus on maximizing electricity generation by PV modules only, and they do not balance the generation of electricity and heat for buildings. To match the varying energy demand of buildings, a flexible management method of novel PV/T systems with spectrum regulation was investigated by a 2D-Monte Carlo method. To maximize both electricity and heat generation, 40 nm Ag/water nanofluid (Case 1) and 90 nm Ag/water nanofluid (Case 2) have been proposed as optimal electrical and thermal nanofluids to capture solar radiation. Additionally, the influence from both mass fraction regulation and optical thickness regulation on the flexibility of the two PV/T systems was also investigated. The results from this study indicated that increased mass fraction resulted in decreased spectral transmittances of both Ag nanofluids, with non-linear regulation of system energy output. Additionally, increased optical thickness led to reduced spectral transmittance, but with nearly linear profiles. For flexible management of PV/T systems under varying building energy demand, adjusting the optical thickness of nanofluids can be used for daily-basis optimization, while mass fraction regulation can be used for seasonally-based optimization.

Type: Article
Title: Flexible management of heat/electricity of novel PV/T systems with spectrum regulation by Ag nanofluids
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.energy.2021.119903
Publisher version: https://doi.org/10.1016/j.energy.2021.119903
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Flexible regulation; Heat-to-electric ratio; Monte Carlo method; Ag nanofluids
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
URI: https://discovery.ucl.ac.uk/id/eprint/10119840
Downloads since deposit
84Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item