<p>I am modelling a layer of water flow between two glass sheets as glazing attached onto building facade. The water flow can be in single direction from a supply tank to a receiver tank. How could this simulation exercise be done with ESP-r?</p>
<div>I cannot find the optical properties like solar absorptance and transmittance of the water layer between two glass sheets. Is there any reference available?<br><br>Thank you!</div>
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<div>Chunying</div>
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<div class="gmail_quote">2009/4/28 Jon Hand <span dir="ltr"><<a href="mailto:jon@esru.strath.ac.uk">jon@esru.strath.ac.uk</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br>A recent question about water and glass....<br>________________________________________<br>From: <a href="mailto:esp-r-bounces@lists.strath.ac.uk">esp-r-bounces@lists.strath.ac.uk</a> [<a href="mailto:esp-r-bounces@lists.strath.ac.uk">esp-r-bounces@lists.strath.ac.uk</a>] On Behalf Of chunying li [<a href="mailto:lichunying83@gmail.com">lichunying83@gmail.com</a>]<br>
Sent: 28 April 2009 09:03<br>To: <a href="mailto:esp-r@lists.strath.ac.uk">esp-r@lists.strath.ac.uk</a><br>Subject: [esp-r] Question about water flowing between two glazing layers.<br>
<div class="im"><br>Hello, all.<br><br>I am doing investigation about water flowing between two layers of glazing. Is there any related module in ESP-r?<br><br>My problems are:<br><br>1,How to handle the convective heat transfer coefficient between the water and ambient glazing when the water is flowing at different speed?<br>
2, The solar light will transmit the two layers of glazing and one layer of water inside in the daytime, of course. How to ascertain the solar absorptance and transmittance of the water layer?<br><br></div>--------------------------------------------------------<br>
<br>Wow, amazing things that people are thinking about. To discuss, this some further<br>description would be useful:<br><br>a) can you explain the context of this water flowing between glazing (what is this<br> representing)?<br>
<br>b) where, specifically, is the water flowing from and to?<br><br>c) is it a part of an an environmental control system, or water at a fixed inlet temperature?<br><br>d) does it always flow in the same direction, at the same rate or every stop flowing?<br>
<br>e) how many times would this situation happen in your model - one time or 100 times?<br><br>f) what thermophysical information about the performance of the water and glass is<br> of interest?<br><br>We might start from the idea that water flowing between two plates will be something<br>
like a heat exchanger.<br><font color="#888888"><br>-Jon Hand<br></font></blockquote></div><br><br clear="all">
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