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contributor authorH. Ries
contributor authorA. Kribus
contributor authorJ. Karni
date accessioned2017-05-08T23:48:14Z
date available2017-05-08T23:48:14Z
date copyrightAugust, 1995
date issued1995
identifier issn0199-6231
identifier otherJSEEDO-28257#259_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/115921
description abstractThe reradiation losses, inherent to every thermal receiver, can be significantly reduced by exposing the working fluid to monotonously increasing irradiance and preventing energy exchange between parts of the receiver that are at different temperatures. In this way the highest temperatures are reached only near the end of the working fluid’s path. The improvement is much more pronounced for nonuniform as compared to uniform irradiance. For a Gaussian distribution of irradiance we calculate improvements exceeding a factor of two for the efficiency at a given temperature (0.8 of the peak stagnation temperature), and for the temperature at a given efficiency of 0.8. These results are independent of the peak irradiance and of the width of the distribution. Even a coarse partitioning into two mutually isothermal parts can already produce a significant improvement over the totally isothermal receiver.
publisherThe American Society of Mechanical Engineers (ASME)
titleNonisothermal Receivers
typeJournal Paper
journal volume117
journal issue3
journal titleJournal of Solar Energy Engineering
identifier doi10.1115/1.2847832
journal fristpage259
journal lastpage261
identifier eissn1528-8986
treeJournal of Solar Energy Engineering:;1995:;volume( 117 ):;issue: 003
contenttypeFulltext


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