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Flat-Plate and Evacuated Tube Collectors
2013Solar-energy collectors are devices employed to gain useful heat energy from the incident solar radiation. They can be of the concentrating or the flat-plate type. A simple flat-plate solar energy collector consists basically of an absorbing surface which absorbs the insolation and transmit it in form of heat to a working fluid commonly air or water. A
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Design of Evacuated Tube Solar Collector with Heat Pipe
Materials Today: Proceedings, 2017Abstract The Renewable source of energy is the future energy source that meets out our demand for energy. In this solar energy is one of the prime sources. The harnessing of the solar energy can be done in both ways Solar (PV), Solar Thermal. Solar thermal finds more suitable for domestic needs such as Space Heating, Cooling, Hot water systems ...
S. Siva Kumar +2 more
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A modified solar desalination system using evacuated tube collector
Desalination, 2016Abstract Solar energy is turning to one of the important types of clean energies, due to its availability, and its potential for wide range of applications. In this work, a new passive solar desalination system is introduced, which benefits from excellences of twin-glass evacuated tube collectors.
M.B. Shafii +3 more
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Gas heat conduction in an evacuated tube solar collector
Solar Energy, 1996Abstract We investigated experimentally the pressure dependency of the gas heat conduction in an evacuated plate-in-tube solar collector. A stationary heat loss experiment was built up with an electrically heated real-size collector model. The gas pressure was varied from 10−3 to 104 Pa, the temperatures of the absorber and the casing were held at ...
T. Beikircher, G. Goldemund, N. Benz
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Exergy analysis of evacuated tube solar collectors: a review
International Journal of Exergy, 2018The most recent studies show that different methodologies have been adopted to understand the concept of Exergy in general and exergy efficiency, exergy destruction, exergy losses, etc. in particular. The present paper reviews the concept of evacuated tube solar water heating systems (SWHSs) followed by fundamental laws of thermodynamics necessary to ...
Gaurav Saxena, Manoj Kumar Gaur
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Numerical analysis of evacuated tube solar collectors using nanofluids
Solar Energy, 2019Abstract In this study, numerical analysis of water and water based nanofluids in ETSCs were made by using CFD. Validation of the study was made by comparing an experimental and two different numerical results. Thanks to the analyzes, the effects of water based Al2O3 H2O and CuO H2O nanofluids compared to water on heat transfer for different volume ...
Muhammed Mercan, Ali Yurddaş
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Evacuated tube solar collector performance using CeO2/water nanofluid
Journal of Cleaner Production, 2018Abstract Nanofluids are the most attractive mean to enhance the performance of heat transfer devices. Several types of nanoparticles were utilized as they have high thermal conductivity. Renewable energy makes use of these nanofluids special in solar collectors.
M.A. Sharafeldin, Gyula Gróf
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Outdoor testing of evacuated-tube heat-pipe solar collectors
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2000The paper presents the steady state performance of two types of commercially available evacuated-tube heat-pipe solar collector that were tested under the meteorological conditions of Singapore. The tests were made in arrays of collectors in contrast with the normal tests performed under controlled laboratory conditions.
Ng, K.C., Yap, C., Khor, T.H.
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A new evacuated CPC collector tube
Solar Energy, 1982J.J. O'Gallagher +4 more
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