Efficiency Gain of a Solar Trough Collector Due to an IR-Reflective Film on the Non-Irradiated Part of the Receiver
- 24 October 2011
- journal article
- research article
- Published by Taylor & Francis Ltd in International Journal of Green Energy
- Vol. 8 (7), 715-733
- https://doi.org/10.1080/15435075.2011.602154
Abstract
In order to reduce the thermal emission from a glass-covered receiver tube of a trough collector, the part of the glass not facing the collector can be covered with an IR-reflecting layer. The advantages of such a covering are discussed in this preliminary study by means of optical and thermal simulations of three configurations of a receiver (two configurations with two different IR-reflecting layers, and one configuration without any IR-reflecting layer). From the simulations, it was observed that one of the layers produce a relative gain of 3.84% of the efficiency over a year (location: south of Italy). An upper bound on the cost of the covering is given.Keywords
This publication has 31 references indexed in Scilit:
- Solar linear Fresnel collector using molten nitrates as heat transfer fluidEnergy, 2011
- Transparent conductors as solar energy materials: A panoramic reviewSolar Energy Materials and Solar Cells, 2007
- Hydrogen/methanol production by sulfur–iodine thermochemical cycle powered by combined solar/fossil energyInternational Journal of Hydrogen Energy, 2007
- Thermal emissivity of coated glazing—simulation versus measurementsOptical Materials, 2005
- Recent progress in high-temperature solar selective coatingsSolar Energy Materials and Solar Cells, 2000
- Deposition of optically transparent IR reflective coatings on glassApplied Optics, 1984
- Antireflection Pyrex Envelopes for Parabolic Solar CollectorsJournal of Solar Energy Engineering, 1983
- Heat mirror coatings for energy conserving windowsSolar Energy Materials, 1981
- Metal/insulator composite selective absorbersSolar Energy Materials, 1979
- Transparent heat mirrors for solar-energy applicationsApplied Optics, 1976