Results 241 to 250 of about 55,315 (304)
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Concentrator for solar air heater
Applied Physics, 1979A focusing collector for air heater, the concentrator being Fresnel lenses, is here examined. The sunlight is focalized on black-body metallic sheets, contained in an insulated box, through which the energy is transferred to the fluid (dry air). The sheets, having the same height, are arranged at a distance one from another increasing from the center ...
F. Demichelis, E. Minetti-Mezzetti
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Efficiency of solar air heaters
Applied Solar Energy, 2016This paper proposes a method for finding the efficiency of solar air heaters based on a comparison of their thermal and hydrodynamic characteristics with the thermal and hydrodynamic characteristics of flat plate-type solar air heaters. Calculations performed for different designs of air heaters have shown the great potential of this method to create ...
E. S. Abbasov +2 more
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Energy Conversion and Management, 2012
Abstract Two low cost solar air heaters viz. single glazed and double glazed were designed, fabricated and tested. Thermocole, ultraviolet stabilised plastic sheet, etc. were used for fabrication to reduce the fabrication cost. These were tested simultaneously at no load and with load both in summer and winter seasons along with packed bed solar air ...
R.S. Gill +2 more
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Abstract Two low cost solar air heaters viz. single glazed and double glazed were designed, fabricated and tested. Thermocole, ultraviolet stabilised plastic sheet, etc. were used for fabrication to reduce the fabrication cost. These were tested simultaneously at no load and with load both in summer and winter seasons along with packed bed solar air ...
R.S. Gill +2 more
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Optimization of Solar Air Heater Design
SSRN Electronic Journal, 2021Indoor heating systems currently used are highly dependent on fossil fuels; hence, it is urgent to develop a new type of heating system to achieve carbon zero emission. A Solar air heater is eco-friendly because it generates nearly zero greenhouse gases.
Jihu Lee, Sung-Hun Son, Kibum Kim
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Solar Energy, 2015
Abstract In this study, the thermal performances of perforated glazed solar air heaters (PGSAHs) having different inner collector colors and a black colored unglazed transpired solar air heater (UTSAH) were investigated experimentally. Two PGSAHs having perforated plexiglas glazing and different inside bottom colors were constructed.
Vaziri, Roozbeh +2 more
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Abstract In this study, the thermal performances of perforated glazed solar air heaters (PGSAHs) having different inner collector colors and a black colored unglazed transpired solar air heater (UTSAH) were investigated experimentally. Two PGSAHs having perforated plexiglas glazing and different inside bottom colors were constructed.
Vaziri, Roozbeh +2 more
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Matrix solar air heaters – A review
Renewable and Sustainable Energy Reviews, 2016Abstract Improvement of thermal performance of a solar air heater can be obtained by enhancing the rate of heat transfer. Thermal efficiency of matrix solar air heater is higher in comparison to conventional type. Number of studies has been reported in the literature on the performance of matrix air heater with different material packing and ...
K. Rajarajeswari, A. Sreekumar
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High efficiency solar air heater
Solar Energy, 1997This article presents an analysis for a novel type of solar air heater. The main idea is to minimize heat losses from the front cover of the collector and to maximize heat extraction from the absorber. This can be done by forcing air to flow over the front glass cover (preheat the air) before passing through the absorber.
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SOLAR AIR HEATERS WITH HEAT ACCUMULATORS
TOPICAL PROBLEMS OF DEVELOPMENT RENEWABLE ENERGY, 2020Разработан и сконструирован экспериментальный образец принципиально новой установки солнечного воздухонагревателя с фазопереходным тепловым аккумулятором, предназначенный для высушивания плодоовощной продукции, позволяющий, используя только энергию солнечной радиации, круглосуточно вырабатывать нагретый воздух с заданными термическими параметрами ...
Ya.A. Dibirov +3 more
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