Solar Hot Water - User Specified Collector Specification for Incident Angle Modifier

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ajgong
Topic Author

31 Jan 2013 19:38 #1230 by ajgong

Solar Hot Water - User Specified Collector Specification for Incident Angle Modifier was created by ajgong

Hi,

I'm trying to create a model for a SWH system, but the particular collector module that I'm testing is not in SAM's library of SRCC Collectors. The SRCC online database does have an entry on the collector, and I've been able to determine what the FRta and FRUL coefficients are (simply the coefficients in the ISO efficiency equation in the SRCC report). However, I have no details about the Incident Angle Modifier. Is there a resource where I could find that data, or is there a typical value for tubular collectors that I should use?

Thanks,
Andrew

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Paul Gilman

01 Feb 2013 20:02 #1231 by Paul Gilman

Replied by Paul Gilman on topic Solar Hot Water - User Specified Collector Specification for Incident Angle Modifier

Hi Andrew,

SAM's solar water heating model is intended to model flat plate collectors. I am not sure it will accurately model a tubular collector.

In general, I would assume that you could use the IAM for a similar collector and expect reasonable results.

Best regards,
Paul.

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