[TRNSYS-users] TYPE15 : Twater mains equation ?

[LECONTE Antoine 219492]

Dear TRNSYS users,

Type15 provides an estimation of the cold water temperature based on characteristics of the weather file.
There is an equation in the TRNSYS documentation with references.
But the equation in the Type15 code is not consistent with the documentation  nor the references.
Especially, there is a term based on the annual average global horizontal irradiance (annual_ave_I) that is not mentioned anywhere.

Does anyone have an idea where this term comes from ?

Best regards,

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Antoine LECONTE
Research Engineer
National Institute of Solar Energy
CEA/LITEN - Department of Solar Energy
Building and Thermal Systems

Commissariat à l'énergie atomique et aux énergies alternatives
Bât. HELIOS, 50 avenue du Lac Léman | F-73375 Le Bourget-du-Lac
T. +33 (0)4 79 79 21 38 | F. +33 (0) 4 79 62 13 74 |
antoine.leconte at cea.fr<mailto:antoine.leconte at cea.fr>; www.ines-solaire.org<http://www.ines-solaire.org/>; liten.cea.fr

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