[TRNSYS-users] Type 539 solar collector useful energy gain

[Richard Thygesen]

I have a question about type 539 solar collector.
When I compare the output useful energy gain with my own calculation it doesen't match.
Why is that and shouldn't the useful energy gain be the same as my calculation?

I have used the following q=massflow*Cp*(Tout-Tin) to calculate the useful energy.

Best regards
Richard Thygesen

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