نتایج جستجو برای: unglazed transpired solar collectors
تعداد نتایج: 123611 فیلتر نتایج به سال:
This paper explores the benefits and drawbacks of using carbon dioxide in solar thermal systems at medium and high operating temperatures. For medium temperatures, application of CO2 in non-imaging-optics based compound parabolic concentrators (CPC) combined with evacuated-tube collectors is studied. These collectors have been shown to obtain efficiencies higher than 40% operating at around 200...
Supplementing fossil fuels with solar air tempering for brooding young livestock could reduce energy use and improve indoor quality. Metal transpired collectors (TSC) are effective but too expensive heating buildings. An inexpensive 12.7 m2 dark grey landscape-fabric-based collector (fTSC) was evaluated in a swine nursery two herds of pigs. A fraction the fTSC area underlain phase change materi...
All around planet Earth, access to drinkable fresh water is a problem with increasing relevance, being its scarceness the origin of many diseases, namely in underdeveloped countries and a potential motivation to future conflicts. The present work focuses in the modelling of solar still systems of salt water, aiming at producing fresh water, having considered for that purpose four types of insta...
Genesis (NASA Discovery Mission #5) is a sample return mission. Collectors comprised of ultra-high purity materials will be exposed to the solar wind and then returned to Earth for laboratory analysis. There is a suite of fifteen types of ultra-pure materials distributed among several locations. Most of the materials are mounted on deployable panels (“collector arrays”), with some as targets in...
The global demand for energy is increasing and the detrimental consequences of rising greenhouse gas emissions, global warming and environmental degradation present major challenges. Solar energy offers a clean and viable renewable energy source with the potential to alleviate the detrimental consequences normally associated with fossil fuel-based energy generation. However, there are two inher...
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