Hello,
I have attached an IDF,which I created few days back. I am
a beginner with E+. I wanted to check if I have done it
properly or not. There are no errors on running the
simulation. There are a few warnings which come up since I
have not used all day types, I think. However I assume
that this does not affect my simulation results. Please go
through and let me know if its correct.
Coming to what I want: I need to run a simulation for a 3
bedroom house. I assumed it to be under a single zone,
since only one thermostat is to be used to regulate the
temperature throughout the house. Firstly is this
assumption correct?
Next, I have PTAC with electric heating coil. Is this
enough for performing both heating and cooling? Also
please look into the output. I find that during winter, at
certain time of the day, cooling occurs which sounds not
correct. Can you kindly explain why? Am I making a mistake
in the scheduling?
Please verify my file and if changes are to be made,
please help me out with it.
I had emailed earlier inquiring about this and got few
replies. However I did not understand them very clearly.
So here it is again: I need the HVAC to cut off on
reaching the cooling or heating set point. In other words,
I do not want the HVAC to be running continuously and
trying to maintain the set point. Zone/room temp = set
point, HVAC should turn off. Then once the room/zone
temperature rises or falls by 1 deg C, I want the HVAC to
once again kick ON to cool or heat the room. And I want
the heating and cooling to be electric. This is what we
normally observe in our houses. So basically, it will be a
cycle of cooling in case of summer and a cycle of heating
in winter. Can this be done in E+, if so, can you explain
in detail how to do this. It will be really helpful, since
I am working on my thesis based on this. In of the replies
which i had got earlier, I was asked to look into the part
load ratio and I was told that the HVAC operation is
dependent on the load and is not about reaching the set
point. It makes sense and I agree speaking technically,
but with this software, how do I get to the part load
ratio?
Once again I request you to go through the IDF and verify
if its correct and suggest modifications to improve it or
in case its wrong help me correct it. Also please explain
in detail on how to go about to achieve the HVAC operation
like I have mentioned.
Sincerely,
Aditya