Solar Heating Articles
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Significance of design for energy conservation in buildings: building envelope components
Energy efficient buildings consist of using innovative technologies based on renewable energies and a good thermal insulation. Most strategies applied in design and many of the services offered by lodging establishments require the consumption of substantial quantities of energy, water and non–durable products. In most developing countries, it makes perfect sense to focus on the ...
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PV developer and Investor joint-ventures: A strategy for commercial success in Chile
Recently Mainstream Renewable Power announced a joint venture with Actis Investment meaning its financing needs for a large pipeline of projects will now be assured. With little experience in Chile for renewables, this rare form of partnership could be the most viable but difficult means of getting projects into production. Earlier in the month Mainstream Renewable Power announced a joint ...
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Operating parameter analysis to improve the performance of solar desiccant wheel using a mathematical model: Part 1
A mathematical model for analysis of various operating parameters to improve the performance of desiccant wheel has been used and heat and mass transfer for both moist air and the desiccant material have been considered. An experimental setup is fabricated using the evacuated tube solar air collector with desiccant wheel. The hot air needed for regeneration is produced by evacuated tube solar air ...
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A numerical evaluation of thermal performance of double flow packed bed solar air heaters
In this paper, double flow packed bed solar air heater was investigated theoretically and experimentally. A numerical model for the air heater was presented. Numerical calculations had been performed under Hamirpur (latitude, 31°25' to 31°52' North) prevailing weather conditions. A mathematical models based on the volumetric heat transfer coefficient have been developed. To solve this model and ...
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Energy and exergy analysis of a solar–assisted heat pump space heating system for clear days
The studies over solar–assisted heat pump systems have been performed mostly on time periods when solar radiation is high. Therefore, this study focuses on performance analysis of a solar–assisted heat pump system which stores the energy during the clear day and uses it as a heat source of heat pump space heating system during the night. Energy and exergy analyses divided into two parts, which ...
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Comparison of thermal performances of flat plate and evacuated tube solar air collector at different flow rates: experimental analysis
The thermal performances of an evacuated tube solar air collector and flat plate solar air collector are experimentally investigated at different flow rates of air. The evacuated tube solar air collector has 40 evacuated tubes and surface area, 4.44 m². This setup consists of a header of square shape. The header has a circular pipe at the centre through which the air flows. The setup contains ...
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Energy and exergy analysis of a double–pass thermoelectric solar air collector
Analysis of energy and exergy has been performed for a double–pass thermoelectric (TE) solar air collector. The incident solar radiation heats up the absorber plate so that a temperature difference is created between the thermoelectric modules that generate a direct current. Only a small part of the absorbed solar radiation is converted to electricity, while the rest increases the ...
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Developing MATLAB software for PV and battery sizing for lighting projects in Gaza Strip, Palestine
Recently, with the critical situation of the siege on the Gaza Strip, the need for an alternative energy source instead of traditional energy sources increases day by day, especially as Palestine is considered one of the sunny countries and receives good solar radiation over the year. In this paper, the MATLAB software is developed for sizing process of PV modules and batteries. The developed ...
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Performance evaluation of parabolic dish type solar collector for industrial heating application
From Indian perspective there is a large potential available for low cost solar water heating systems. The described system can instantly fulfil needs of hot water in industrial sector. This type of system can be used for heating boiler feed water, laundry applications and other steam generation applications. In general, concentrated solar collectors have high efficiency as compared to flat plate ...
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A technical note on performance testing of a solar box cooker provided with sensible storage material on the surface of absorbing plate
A box type solar cooker having a double glass cover and a plane mirror reflector has been tested for its thermal performance. In the present study, performance of solar box cooker has been compared by using two different sensible heat storage materials (sand and granular carbon). By using these materials as a mixture and spread it over absorber tray in the form of thin layer and fully packed with ...
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Aquatics center: Brown dives into solar energy
The 168 rectangular panels on the roof of the Katherine Moran Coleman Aquatic Center will generate enough power to keep the lights on and enough thermal energy to heat the million-gallon pool. The center, due to open April 13, will be Rhode Island’s first hybrid (heat and power) solar installation — also the largest in the nation and the first on a college campus. Brown is diving ...
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Heat recovery and energy efficiency, improves profitability and reduces CO footprint
Using latest technology in combustion of oil and gas can provide significant savings in overall energy consumption. Modern oxygen control that compensates changes in ambient temperature and fuel qualities can increase energy efficiency up to 3%. By adding the usage of hot combustion air another 2-3% can be saved. Modern burner technology without mechanical linkage, operating with accurate ...
By Oilon Oy
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Harnessing the Sun`s Energy for Water and Space Heating
The pace of solar energy development is accelerating as the installation of rooftop solar water heaters takes off. Unlike solar photovoltaic (PV) panels that convert solar radiation into electricity, these "solar thermal collectors" use the sun's energy to heat water, space, or both. China had an estimated 168 million square meters (1.8 billion square feet) of rooftop solar thermal collectors ...
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Solar energy based thermal energy storage system using phase change materials
Nowadays for solar heating applications, usage of phase change materials (PCM) to store the heat in the form of latent heat is increased, because large quantity of thermal energy is stored in small volume. The present experimental investigation on the thermal energy storage (TES) system is developed using paraffin and stearic acid as PCM. In the present system solar energy is used as heat source ...
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Solare Klärschlammtrocknung in der Praxis - Erfahrungen auf der Kläranlage Glarnerland
The water purification plant Glarnerland produces yearly roughly 4 000 tons of digested sludge (DM 25 %). Through drying, partially using in agriculture and the rest burning in the county's waste incineration plant the final disposal of the sludge is solved. The new solar sludge drying plant uses solar energy and waste heat taken from the electrothermal power station. In the new solar drying ...
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Design, development and experimental investigation of a solar tunnel dryer for drying mushroom
A solar tunnel dryer was designed and fabricated with locally available materials having the cross sectional area of the entire tunnel 5400 ? 1700 mm. The half of the nearly air tight tunnel base was used as the flat plate air heating solar collector and the remaining half as a dryer. The drying air temperature could be easily raised by some 6-10?C above the ambient temperature at an air velocity ...
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Water vapour permeation measurement for PV Solar Cell packaging
With fears of carbon dioxide causing global warming and diminishing supplies of fossil fuels, a looming energy crisis is affecting all countries. As a consequence, a great deal of world-wide effort is going into the development of alternative energy technologies. At present, wind, hydro and geothermal are becoming well established with more niche roles for tidal and solar. The latter technology ...
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The effect of sponge liner on the performance of simple solar still
In conventional solar stills, a part of the radiation is reflected by the inner wall surfaces to the still components and the remaining energy is stored by itself. The main objectives of this experimental study are: 1) to utilise the energy available on the inner wall surfaces of a still by using sponge liner; 2) to find the optimum thickness of sponge liner. Two single-slope solar stills are ...
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How to make energy efficiency affordable
Energy efficiency is a tortoise in the green energy race. Not glamorous like solar, wind or smart grid, it tends to plod along in the back of the pack, attracting little media attention. But being last can be a good thing; you learn from the frontrunners. Such is the case when it comes to financing. EE is beginning to borrow from strategies that have spurred tremendous growth for solar and other ...
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HycycleS: a project on nuclear and solar hydrogen production by sulphur-based thermochemical cycles
The European FP7 project HycycleS focuses on providing detailed solutions for the design of specific key components for sulphur-based thermochemical cycles for hydrogen production. The key components necessary for the high temperature part of those processes, the thermal decomposition of H2SO4, are a compact heat exchanger for SO3 decomposition for operation by solar and nuclear heat, a ...
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