Open AccessJournal Article
Comparison Study of Solar Flat Plate Collector with Single and Double Glazing Systems
H. Vettrivel,P. Mathiazhagan +1 more
TLDR
In this article, a double glaze system was introduced and optimized the space between the absorber plate to glass cover (1) and glass cover were considered to analyze the overall top loss heat transfer coefficient (U t ).Abstract:
Solar energy can be converted into useful energy in the form of thermal energy. One of the most efficient methods is to harvesting heat energy by using solar flat plate collector. The function of solar collector is to heat water from the atmospheric temperature. The heated water can be used for domestic and industrial applications etc. The efficiency of the solar collector is depend with many parameters such as  number of glass cover, wind velocity, space  between absorber plate to the glass cover and overall top loss heat transfer coefficient out of which top loss heat transfer coefficient top loss (U t ) plays an important role for design of solar collector. Taking this point under consideration the present work is to reduce the overall top loss heat transfer coefficient and improve the collector efficiency. A double glaze system was introduced and optimized the space between the absorber plate to glass cover (1) and glass cover (2)were considered to analysis the overall top loss heat transfer coefficient (U t ). The single and double glazing solar flat plate collectors were fabricated with same dimensions and installed at a latitude angle of 12 degree facing towards N-S direction. The experiment has been carried out between 10.00 AM to 4.00 PM with thermosyphon principle. The result shows that the efficiency of double glazing is higher compared to single glazing system with same solar intensity. The higher efficiency has obtained because of the overall top loss heat transfer coefficient was reduced in double glazing system. However, the efficiency of collector is not constant; it varies with wind velocity, convective, radiative heat transfer coefficient and solar intensity.Âread more
Citations
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Journal ArticleDOI
Performance enhancement analysis of The flat plate collectors: A comprehensive review
TL;DR: In this article, the effect of design parameters such as the thickness and coating of the glass cover, thickness and material of the absorber plate, the air gap between the absorbber plate and the cover, and the distance between risers and the insulation materials on the thermal performance of FPCs are discussed.
Journal ArticleDOI
Optical properties and stability of water-based nanofluids mixed with reduced graphene oxide decorated with silver and energy performance investigation in hybrid photovoltaic/thermal solar systems
A.S. Abdelrazik,Kim Han Tan,Navid Aslfattahi,Navid Aslfattahi,Rahman Saidur,Rahman Saidur,Fahad A. Al-Sulaiman +6 more
Journal ArticleDOI
Low grade heat recovery for power generation through electrochemical route: Vanadium Redox Flow Battery, a case study
TL;DR: In this paper, Vanadium Redox Flow Battery (VRFB) is considered as a case study to see the feasibility of this concept and a lumped parameter model of the VRFB system is developed to study the high temperature operation.
Journal ArticleDOI
Effect of regeneration heat and energy storage on thermal drying performance in a hardwood solar kiln
TL;DR: In this paper, the authors used the implicit finite difference method to solve the mass and energy conservation equations in different components of the drying system of a solar wood kiln with thermal storage and heat regeneration.
Proceedings ArticleDOI
Improvement of the performance of solar water heater based on nanotechnology
Velaphi Msomi,Ouasin Nemraoui +1 more
TL;DR: In this article, the performance improvement of the solar water heater (SWH) system through the incorporation of transparent nanomaterial called Fluorine doped Tin Oxide (FTO) was reported.
References
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Journal ArticleDOI
Recent advances in the solar water heating systems: A review
TL;DR: In this paper, the authors present a detailed review exclusively on the design aspects of SWH systems and provide a consolidated summary on the development of various system components that includes the collector, storage tank and heat exchanger.
Natural convection in enclosed spaces - A review of application to solar energy collection
TL;DR: In this article, the spacing between the hot solar absorber and successive glass covers should be in the range 4 to 8 cm to assure minimum gap conductance, based on the theory and some experimental measurements.
Journal ArticleDOI
Natural Convection in Enclosed Spaces—A Review of Application to Solar Energy Collection
TL;DR: In this article, the spacing between the hot solar absorber and successive glass covers should be in the range 4 to 8 cm to assure minimum gap conductance, based on the theory and some experimental measurements.
Journal ArticleDOI
Thermal analysis and performance optimization of a solar water heater flat plate collector: Application to Tétouan (Morocco)
TL;DR: In this paper, the authors investigated the heat transfer process as well as the thermal behavior of a flat plate collector evaluating different cover configurations, and proposed a two objective constrained optimization model to evaluate the optimality of different design approaches.
Journal ArticleDOI
Effect of absorption of solar radiation in glass-cover(s) on heat transfer coefficients in upward heat flow in single and double glazed flat-plate collectors
Naiem Akhtar,S. C. Mullick +1 more
TL;DR: In this paper, the effects of absorption of solar radiation on inner and outer surface temperatures and consequently on convective and radiative heat transfer coefficients have been studied over a wide range of independent variables.
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