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The Water Production Factors And Application Research Of Disk Solar Sea Water Desalination Device

Posted on:2015-03-12Degree:MasterType:Thesis
Country:ChinaCandidate:L W ZhouFull Text:PDF
GTID:2250330428459838Subject:Agricultural facilities
Abstract/Summary:PDF Full Text Request
In order to solve the problems of freshwater supplying in landscape vegetationrestoration processing,one kind of Water and Fertilizer Supplying Device was be designedand made in the base of the traditional solar desalination device. And some experimentresearch about factors on production rate was launched on it under the actual environmentcondition.By experiment research on the seawater depth in device, results told that: the less theseawater was, the faster temperature praise rate with, but in total that properly praised theseawater depth was helpful to enhance the water production.By experiment research on the black sponge in device, results told that: under thenatural convection modulus, only a little difference on the freshwater production betweenthe plane sponge and crest sponge. The black sponge was mainly impressed to enhance thetemperature of seawater, and then enhance the difference in temperature between the insideand outside environment of device; also it is helpful to keep the seawater warm. The resultsshow that the difference between seawater and inner glass temperature T is the power ofseawater evaporation. When the T is positive, and overcome17℃, the surface water canbe evaporated prominently and can get much fresh water.By experiment research on the different cover material on device, results told that:although with highly heat conductivity coefficient, the ordinary glass is helpful to theprocessing of heat and mass transfer between the inside and outside environment, but theCondensed water film on the ordinary glass hindered the heat and mass transfer rate.Finally, the paper discussed the feasibility of the greenhouse solar seawaterdesalination device apply to landscape vegetation restoration processing...
Keywords/Search Tags:Solar, desalination, influence factor, landscape vegetation restoration
PDF Full Text Request
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