Although mostly my engineering research, teaching and consulting concerned mechanical design, my PhD research was about heat transfer. At IIT a study I did many years ago for the Window Shade Manufacturers Association investigated the benefits of window shades in controlling heat loss/gain through windows. For that study another professor and I built a carefully insulated room with a typical window in one wall. Direct sunlight was simulated with a bank of Kodak projector bulbs. Measuring flow rate and temperature of airflow circulated showed the reduced heat gain when the shade was pulled down.
 


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07/10/2016 10:54pm

There is some sort of thermodynamics principle about this. Stained glasses was also used by buildings and churches as their window. Aside from it is appealing to the eyes of people, it also involves heat absorption wherein it controls transfer of heat between two systems. Researches also found out that its advantage also includes energy conservation. However, stained glasses installation is expensive than we think.

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11/04/2016 8:52am


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As we know that, the benefits of window shades in controlling heat loss/gain through windows are unparalleled. It’s really an amazing topic for the research and it has an enormous scope as the global warming is increasing day by day. Really loved the article.

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