Hello everyone,
i have a question about calculating heating requirement of a greenhouse having thermal curtain/Screens (Special material used for reducing heat loss during night time). TRNSYS calculate total heating loss (Convective + Radiation + Conductance). i have this material properties (Transmittance etc+ convective heat transfer coefficient to calculate Convective + Radiation ) but for conductance i don't have thermal conductivity of the material (Properties used in WINDOW software for crating DOE-2 file).
In the literature, some researchers calculate heat loss through these kind of screens by using Moisture transport + Air permeability + Transmittance and emissivity (Detail can be seen in the figure attached (Calculation detail)
). by considering temperature on both side of the material same and have no or negligible conductance.
My question is that how i can used this method in TRNSYS to calculate energy flux through these kind of material. is it possible in TRNSYS? by ignoring thermal conductivity and thickness of the material (Used in DOE-2 file.
Thanks
Adnan Rasheed
PhD Researcher
Kyungpook National University
Daegu, South Korea.
+82-102762-0105
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Sender notified by Mailtrack 11/28/18, 1:28:17 PM |
