[EnergyPlus_Support] combined effect of shading devices on interior temperatures

["neslihanturkmenoglu" <neslihanturkmenoglu@xxxxxxxxx>]

hi

I am simulating a cross ventilated zone  having an always open window 
with shading device on the front and another opening always open at 
the back  wall.I want to get interior surface temperature changes 
according to shading device changes(concerning shading device effects 
on airflow and solar radiation penetration to zone ). 

I know that program doesn't consider  shading devices  when modelling 
airflows so I thought that if I calculate interior surface convection 
coefficients with measured velocity coefficients and  discharge 
coefficients with air mass flow  for  front opening  for all 
situations of shading device alternatives and measured front and back 
outside surface pressure coefficients, shading devices effects on  
airflow would be considered.My questios are:

1-  Which variables above should be entered as input to program? or 
the program already calculates some of them?Ýs my discharge, 
calculated with Q and pressure differences, same with the discharge 
wanted in airflow network- simple or detailed opening object?Which 
expression does EP use for calculating surface convection 
coefficients? 

2-To fill the air mass flow coefficient object in opening 
definition,   How will I find out n(airflow exponent) and CT = 
reference condition temperature correction factor (dimensionless). 

3-For this simulation will I use UCSD (Cross Ventilation ) room air 
models or airflow network or both of them?
4-Should I enter to program, the measured airflow velocities in wind 
tunnel effecting my model,where?

4-Should I put nodes ? Where should I put nodes? 

5-Do I need to use any schedules for airflow and solar radiation 
simulation.

6-Natural ventilation effect the zone. There is no mechanical system, 
no occupation, no lighting,etc.
Do I need to define any mechanical system to run the program?

 
7-As I understand program is not able to give interior surface 
temperatures of shaded and unshaded surfaces when solar radiation 
enters through open window. Is it possible to define, for example-
west interior wall as east outside wall and get interior surface 
temperature or is there another way to consider solar radiation on 
interior surfaces( I found the shaded anad unshade areas of interior 
surfaces).If it is possible, will I first run the program with 
airflow network simulation and get interior surface and interior mean 
air temperature after that run the program for solar radiation 
effects on surfaces(by defining cross walls as exterior walls) and 
get surface temperatures and interior mean air temperature? and so 
how will I find the the combined effect of shading devices on 
interior surface and air temperatures according to airflow and solar 
radiation penetration to interior?

8-How will I  get the solar radiation intensities effecting ground or 
side walls?

I am not an engineer and it is most of time hard to understand 
manuels. Thank  you very much for your help. 
Happy new year to all:)



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