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Showing 1 to 20 of 62 for “"solar collector"”.
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Modeling and Experimental Investigation of Parabolic Trough Solar Collector
… to study the performance of a parabolic trough solar collector (PTSC). The proposed model consists of three parts. The first part is a solar radiation model. In this section, the amount of solar radiation incident upon Earth is estimated using equations and relationships between the sun and the …
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Analysis and design of a cylindrical parabolic solar collector
A cylindrical-parabolic solar collector was thermally optimized for a winter season using a weather model and an extension of the present state-of-the-art collector theory. An accurate model for the cover transmittance and a seasonal performance model was developed. The optimum collector dimensions …
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Analysis of flat-plate solar collector durability test data
… types of commercially available flat plate solar collectors. The test results for five types of collectors are analyzed. The purpose of the test program was to investigate the feasibility of determining the durability of materials by measuring collector thermal efficiency at specified …
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The impact of thermophysical properties on nanofluid-based solar collector performance
… systems. An example of such systems is the solar volumetric flow receiver in which great efficiency improvements have been reported. To explain this efficiency increase, researchers have evaluated the impact of enhanced radiative properties of nanofluids while largely neglecting that of …
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Stagnation temperature test methods for determining solar collector thermal performance degradation
… degradation of materials used in flat-plate solar collectors. The proposed method is based on measuring stagnation (no-flow) temperatures of the absorber plate. A comparison of the advantages and limitations of the proposed method is made with the conventionally used existing method which is …
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The effects of material property changes on solar collector thermal performance
… relating material property changes to full scale collector efficiency changes after exposure to environmental and operational conditions. To this end, results of material sample and full scale collector tests are discussed separately and then related to each other. Many of the materials tested …
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Experimental investigation of U-Pipe evacuated tube solar collector: thermal performance enhancement methodology
… performance comparison of U-Pipe evacuated tube solar collector (ETC) vs heat pipe ETC (HPETC) was investigated experimentally. ETC's are available in either heat pipe or u-pipe configurations. In this work, a custom made U-Pipe ETC design is studied alongside commercially available HPETC setup. …
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Thermal Performance Modeling of a Novel Dual-PCM Evacuated U-Tube Solar Collector
Solar water heating (SWH) systems are a well-established and eco-friendly way to generate hot water for household or commercial applications as it utilizes energy from solar radiation which is readily available all year round. However, there are drawbacks to this technology especially during times …
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Review of solar thermoelectric energy conversion and analysis of a two cover flat-plate solar collector
The process of solar thermoelectric energy conversion was explored through a review of thermoelectric energy generation and solar collectors. Existing forms of flat plate collectors and solar concentrators were surveyed. A thermal analysis of a common two-cover flat plate solar collector was then …
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Design, fabrication and testing of a parabolic trough solar collector air heater for a greenhouse solar dryer.
… from farmers and the markets, greenhouse solar dryers (GSD) have been extensively employed by various stakeholders. The operation of these conventional GSD is though allowing cool or cold ambient air to enter them during drying. Consequently, temperature and relative humidity of the air …
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Design, fabrication and testing of a parabolic trough solar collector air heater for a greenhouse solar dryer.
… from farmers and the markets, greenhouse solar dryers (GSD) have been extensively employed by various stakeholders. The operation of these conventional GSD is though allowing cool or cold ambient air to enter them during drying. Consequently, temperature and relative humidity of the air …
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Simulation, testing and design of a fully adhesive bonded flat plate solar collector for highly automated production
… simulation results and experimental data for a collector type with an all-round supported absorber and a fully adhesive edge bond that is produced on a highly automated production line. A literature review discussing measures to reduce the convective heat loss in flat plate collectors as well as …
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Influence of environmental conditions and architectural form on the design and thermal performance of the flat-plate solar collector system.
Solar heating systems, by the nature of their design and inherent thermal mass, are sensitive to the changes in the prevailing climatic conditions. A computer program has been developed to predict and display the dynamic performance of solar water heating systems and their installation designs …
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Numerical study of nanofluid-based direct absorber solar collector systems with metallic/carbon nanoparticles, multiple geometries and multi-mode heat transfer
… for numerous energy applications including solar collectors. Solar energy is a clean, renewable source available and is essential for all life to exist on earth. Current technology which harvests solar energy with heat transfer fluids (HTFs) e.g., Direct Absorber Solar Collectors (DASCs), …
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Design and analysis of a 1 kw Rankine power cycle, employing a multi-vane expander, for use with a low temperature solar collector.
Thesis. 1977. B.S. cn--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Preliminary Investigation into Solar Thermal Combi-system Performance
Solar thermal combi-systems use solar energy to provide thermal energy for space heating and domestic hot water. These systems come in many different designs and configurations, and their performance is dependent on many different factors such as location, solar collector type and orientation, and …
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The performance of an integral greenhouse solar air-heater
The Baird-type solar collector is a solar air-heater, utilising black shade-cloth as the absorber, that is incorporated as part of the roof of a greenhouse. It is intended to be used, in conjunction with a heat storage device, to provide greenhouse heating (and cooling), and so to assist in …
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Development of an energy storage tank model
… the first using a hot water storage tank with a solar collector and an absorption chiller to cool a building in the summer, the second using a molten salt storage system with a solar collector and steam power plant to generate electricity. Recommendations for further study as well as all of the …
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Mechanical development of an actuation system for a parabolic solar trough collector
… of a hydraulic-based actuation system for a solar trough collector. The goal of this project was to design the actuation system using hydraulic actuators for a four meter solar collector prototype in Pittsfield, New Hampshire. After considering several hydraulic system architectures and …
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