Solar Water Heating Articles
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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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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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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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On rooftops worldwide, a solar water heating revolution
The harnessing of solar energy is expanding on every front as concerns about climate change and energy security escalate, as government incentives for harnessing solar energy expand, and as these costs decline while those of fossil fuels rise. One solar technology that is really beginning to take off is the use of solar thermal collectors to convert sunlight into heat that can be used to warm ...
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Plan B 4.0 by the numbers - data highlights on solar energy
Concerns about global warming, rising fossil fuel prices, and oil insecurity have prompted calls for a new energy economy, one that replaces fossil fuels with renewables. The sun is an enormous reservoir of energy; in fact, the sunlight reaching Earth in just one hour is enough to power the global economy for a whole year. Harnessing some of this energy is an essential component of Earth Policy ...
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Comparison of performance prediction of solar water heaters between Artificial Neural Networks and conventional correlations
The aim of this study was to develop a predictive method for heat transfer coefficients in solar water heaters and their performance evaluation of such heaters with different materials used as heat collectors. Two approaches have been used: conventional method and an Artificial Neural Network (ANN) to predict the performance of solar water heaters and to compare these two approaches. This ...
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Solar water cost and feasibility of solar water heating system
The present research work has been carried out on 1,000 litre installed capacity solar water heating system, at Jijau Hostel, Dr Panjabrao Deshmukh Agricultural University (PDKV), Akola, Maharashtra, India. The main objectives were to evaluate various costs and benefits involved in the solar water production. The costs of hot water production per litre with comparison to electrical energy were ...
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Retrofit of a century old land-house to a low-energy house
Converting a low-quality brick construction into a low-energy solar house takes five steps. First, avoid spillage by optimal space allocation. Second, apply natural and/or somatic energy wherever and whenever possible. Third, integrate passive and semi-passive solutions. Fourth, harvest renewable commodity energy. Fifth, efficiently complement previous steps with commercial energy. Twelve ...
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Peak Oil – Peak Opportunity?
Possibility and public policies can harness renewable energy technologies for a bright future “Alternative” fuels are nothing new. In fact, they were the mainstream power source a century ago. Rudolph Diesel built his engine to run on peanut oil. Henry Ford designed the Model T to run on ethanol. Wind delivered a significant source of power in the last century. Cheap gasoline (and ...
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Optimal environmental benefits of utilising alternative energy technologies in Jordan
With rapid population growth and increase in industrial activities, more energy is consumed, resulting in environmental pollution and economic difficulties. Therefore, the need for utilising renewable energy resources has emerged. Although Jordan does not have adequate fuel supplies (90% of its crude oil is imported), it is gifted with alternative resources. Because of the political and ...
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A novel underground solar thermal heat storage unit cum heat exchanger for non air-conditioned buildings
A novel passive space conditioning configuration is presented, integrating a Solar Collector System, Underground Storage Tank and Novel Heat Exchanger. This Underground Solar Thermal Heat Exchanger (USTHE) provided improved sensible heating/cooling of air by employing a Novel Heat Exchanger (NHX). The dynamic performance of the storage tank in USTHE is modelled using the finite difference method ...
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The promotion and development of renewable energy technologies: current status and pattern of use in Nepal
This paper presents the current status and pattern of use of Renewable Energy Technologies (RETs) in Nepal. The importance of the renewable energy development paradigm is considered in the overall context of national development by supplying the energy requirements of rural areas by the use of available biomass resources whilst also protecting the environment. The RETs popular in the rural energy ...
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