IES-VE User Forum

i can't add trees to the component library. I have the mcl file on my hard drive though

nevermind, the correct formula should be:


if((ta<=23)+((0.2*to+0.8*ta)<=to),0.2*to+0.8*ta,0)+if((ta>23)*(to<16),16,0)+if((ta>23)*(to>=16)*((0.2*to+0.8*ta)>to),to,0)


you should add the "elseif" function though

I solved it more accurate:

Make a window in the roof where you want your solar panels. calculate the solar gain with surrounding buildings and without surrounding buildings and export the data to excel. There you can calculate the shading factor for every hour.

I solved more accurate:

Make a window in the roof where you want your solar panels. calculate the solar gain with surrounding buildings and without surrounding buildings and export the data to excel. There you can calculate the shading factor for every hour.

Hey,

I'm trying to make formula for a heat recovery device.
What i want is:
When (ta <=23) OR ((0.2*to+0.8*ta)<=to), the output should be (0.2*to+0.8*ta)
elseif to>16, the output should be (to)
else, the output should be (16)

In matlab code (which gives me the right matrix of temperatures)
http ...

Hey,

How do i calculate the shading factor for my PV system? It isn't explained in the manual (Apache->renewables). right now, it's on the default value (1), but there definitely is some shading by the surrounding trees.

Hello,

I have a quick question for which i didn't find an answer yet.
Does VE express the energy as "primary energy"? (example: multiply by 2.5 for electricity)
I'm comparing VE to static software EPB (used in Belgium) and EPB expresses everything in primary energy.