Solar radiation receiver having an entry window made of quartz glass and method for producing an entry window
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United States of America Patent
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Jul 17, 2018
Grant Date -
Dec 11, 2014
app pub date -
Sep 13, 2012
filing date -
Sep 14, 2011
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Abstract
Common solar radiation receivers are equipped with a chamber for transmission of an operating gas which is directed along to an absorber for solar radiation for thermal absorption. The absorber has a dome-shaped entry window made of quartz glass, wherein the inner side facing the absorber assumes a nominal interior temperature Ti of at least 950° C. during proper use, preferably at least 1000° C., whereas the outer side facing away from the absorber is exposed to the environment and subject to risk of devitrification. The invention relates to modifying the known solar radiation receiver so that a high absorber temperature can be set and thus a high efficiency of the solar thermal heating is enabled, without increasing the risk of devitrification in the region of the outer side of the entry window.
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