[esp-r] Temporal file

Ali fallahi ali.fallahi at gmail.com
Mon Sep 17 02:27:26 BST 2007


Dear All,

I am modeling a double-pane window with ESP-r and then comparing the
results with measurements from outdoor test cell. I got these problems
in modeling:

Radiation:

1- My measurements are global vertical solar radiation. Is there any
way to use these data directly as input to ESP-r or it needs to be
decomposed to its components first? I tried to use "short timestep
(temporal) data / GLOVRTT" but it didn't work and I got this message "
No data found, pick another type! "

2- In the case that I want to use controllers to sense direct normal
solar radiation incident on a specific surface , which "control law"
would be more appropriate?


Convection:

For Convection coefficient correlation from "Bar-Cohen and Rohsenow
for buoyancy driven flow in vertical channels" when referring to
source code it seems that in calculation of Rayleigh number, beta (
thermal expansion coefficient) is 1/Centigrade instead of being
1/Kelvin! Moreover, if this correlation is used for more than one
zone, trace facility shows that  IAORZ has always one value and that
is the latest value specified in HTC file instead of having different
values for different air origin zones.

I would be pleased if someone could answer my questions.

Best Regards,
Ali Fallahi



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