Concentration Ratios for Flat-Plate Solar Collectors with Adjustable Flat Mirrors

1980 ◽  
Vol 4 (4) ◽  
pp. 170-175 ◽  
Author(s):  
D. C. Larson
Keyword(s):  
Flat Plate ◽  
Solar Collectors ◽  
Concentration Ratios

Economic Optimization of Stationary Nonevacuated CPC Solar Collectors

1987 ◽  
Vol 109 (1) ◽  
pp. 40-45 ◽  
Author(s):  
M. J. Carvalho ◽  
M. Collares-Pereira ◽  
J. M. Gordon
Keyword(s):  
Low Temperature ◽  
Flat Plate ◽  
Operating Temperature ◽  
Solar Collectors ◽  
Economic Optimization ◽  
Promising Alternative ◽  
Energy Delivery ◽  
Low Concentrations ◽  
East West ◽  
Concentration Ratios

Stationary, nonevacuated CPC solar collectors are a promising alternative to corresponding flat plate collectors in that they offer superior yearly energy delivery at comparable cost for low-temperature thermal applications. For realistic cost scenarios, we determine optimal concentrator configurations and concentration ratios, and calculate their sensitivity to variations in relative component costs, climate, orientation and collector operating temperature. For CPC’s that are to have the flexibility of either east-west or north-south orientation, optimized collectors are shown to have low concentrations of around 1.2, achieved by truncation from acceptance half angles of about 45 deg.

Thermal and mechanical performance of sealed, gas-filled, flat plate solar collectors

Solar Energy ◽  
2012 ◽  
Vol 86 (1) ◽  
pp. 13-25 ◽  
Author(s):  
Johan Vestlund ◽  
Jan-Olof Dalenbäck ◽  
Mats Rönnelid
Keyword(s):  
Flat Plate ◽  
Mechanical Performance ◽  
Solar Collectors

scholarly journals Economic Feasibility of Flat Plate vs Evacuated Tube Solar Collectors in a Combisystem

2016 ◽  
Vol 91 ◽  
pp. 477-485 ◽  
Author(s):  
Mario Nájera-Trejo ◽  
Ignacio R. Martin-Domínguez ◽  
Jorge A. Escobedo-Bretado
Keyword(s):  
Flat Plate ◽  
Economic Feasibility ◽  
Solar Collectors ◽  
Evacuated Tube

Development of solar testing station for flat-plate water-cooled solar collectors

2004 ◽  
pp. 109-118
Author(s):  
Emin Kulic ◽  
Sadjit Metovic ◽  
Haris Lulic ◽  
Muhamed Koric
Keyword(s):  
Flat Plate ◽  
Solar Collectors

scholarly journals An experimental study of the thermal performance of the square and rhombic solar collectors

2018 ◽  
Vol 22 (1 Part B) ◽  
pp. 487-494 ◽  
Author(s):  
Aminreza Noghrehabadi ◽  
Ebrahim Hajidavaloo ◽  
Mojtaba Moravej ◽  
Ali Esmailinasab
Keyword(s):  
Experimental Study ◽  
Flat Plate ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Thermal Performance ◽  
Thermal Efficiency ◽  
Solar Collectors ◽  
Heating Systems ◽  
Solar Water Heating

Solar collectors are the key part of solar water heating systems. The most widely produced solar collectors are flat plate solar collectors. In the present study, two types of flat plate collectors, namely square and rhombic collectors are experi?mentally tested and compared and the thermal performance of both collectors is investigated. The results show both collectors have the same performance around noon (?61%), but the rhombic collector has better performance in the morning and afternoon. The values for rhombic and square collectors are approximately 56.2% and 53.5% in the morning and 56.1% and 54% in the afternoon, respectively. The effect of flow rate is also studied. The thermal efficiency of rhombic and square flat plate collectors increases in proportion to the flow rate. The results indicated the rhombic collector had better performance in comparison with the square collector with respect to the mass-flow rate.

scholarly journals Performance of Flat Plate Solar Collectors using Different Thickness of Glazing Material

2020 ◽  
Vol 8 (6) ◽  
pp. 5787-5793
Keyword(s):  
Flat Plate ◽  
Solar Collectors ◽  
Time Duration ◽  
Varying Thickness ◽  
Different Thickness

This paper throws light on the research of the outcome of breadth of glazing material such as glass on the flat plate solar saver presentation. There are 4 models of the solar saver comprised with varying thickness of glass which are investigated experimentally. The area of the collector fabricated is 0.72x0.15 meters. The thickness parameters considered in the study is low glass iron having the values of 2mm, 3mm, 4mm and 5mm. these materials are used as the glazing material in the present setup. The performance regarding the collector was evaluated and contrasted with the 5mm thickness glass. The result depicted that thickness material having 4mm value has the best results in the time duration considered in the study from morning 7:30 am to evening 6 pm. The effectiveness calibrated showed that 4mm glass gave 35.98% in comparison to the 5mm which incorporated 28.2%.

scholarly journals Aplicaciones del Captador Solar de Placa Plana y del Captador de Tubo de Vacío en la Edificación = Applications of the Flat Plate Solar Collectors and the Vacuum Tube Solar Collectors in Building

2018 ◽  
Vol 4 (3) ◽  
pp. 25 ◽  
Author(s):  
Daniel Ferrández ◽  
Carlos Moron ◽  
Jorge Pablo Díaz ◽  
Pablo Saiz
Keyword(s):  
Flat Plate ◽  
Solar Collector ◽  
Energy Demand ◽  
Hot Water ◽  
Solar Thermal ◽  
Solar Collectors ◽  
Thermal Systems ◽  
Vacuum Tube ◽  
Solar Thermal Collectors ◽  
Flat Plate Solar Collector

ResumenEl actual Código Técnico de la Edificación (CTE) pone de manifiesto la necesidad de cubrir parte de la demanda energética requerida para el abastecimiento de agua caliente sanitaria y climatización de piscinas cubiertas mediante sistemas de aprovechamiento de la energía solar térmica. En este artículo se presenta una comparativa entre las dos principales tipologías de captadores solares térmicos que existen en el mercado: el captador de placa plana y el captador de tubo de vacío, atendiendo a criterios de fracción solar, diseño e integración arquitectónica. Todo ello a fin de discernir en qué circunstancias es más favorable el uso de uno u otro sistema, comparando los resultados obtenidos mediante programas de simulación con la toma de medidas in situ.AbstractThe current Technical Building Code (CTE) highlights the need to cover part of the energy demand required for the supply of hot water and heating of indoor swimming pools using solar thermal systems. This article presents a comparison between the two main types of solar thermal collectors that exist in the market: the flat plate solar collector and the vacuum tube solar collector, according to criteria of solar fraction, design and architectural integration. All of this in order to discern in what circumstances the use of one or the other system is more favourable, comparing the results obtained through simulation programs with the taking of measurements in situ.

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