Aditi,
It really depends on what performance data you have available for the solar collector you'll be using. Type 71 and 538 use a quadratic efficiency equation and Type 1288 uses the 6 parameter model from the EN12975 standard. Beyond that, Type 538 is somewhat similar to Type 71 but offers more features (outlet temperature control, impact of mass, etc.)
Jeff
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Jeff Thornton President - TESS LLC 22 N. Carroll Street, Madison WI USA 53703 Office: (608) 274-2577 Fax: (608) 278-1475 www.tess-inc.com E-Mail: thornton@tess-inc.com
On 10/04/2017 11:03 am, Aditi Garg via TRNSYS-users wrote:
Dear TRNSYS user,I would like to know how should we select the evacuated tube for solar water heating. I am unable to know which will be better, type 1288 , type 538 or type 71?I have tried reading them through theory but still unable to decide. I would really appreciate if anyone can help me with them.thank youRegardsAditi Garg
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