[EnergyPlus_Support] Re: Problem with results of a simulation

["Ignacio" <nachogo27@xxxxxxxxx>]

Thanks in advance Dr.Li,
It is a simple simulation without HVAC systems,I have only added the Ideal Load
System.
But I have a very high peak load in heating mode when the the target temperature
for my ideal system changes from 12.8ºC to 21.1ºC at 6:00am.
It seems that my Ideal Load System is switched off because the zone temperature
is near to 18ºC (the target temperature is 12.8ºC,therefore the Ideal System is
off).But at 6:00am the target temperature changes to 21.1ºC,the Ideal System
switchs on.This is the moment when I got a very high peak(For example,I had a
peak of 80000W at 6:00am and after this peak the load is maintained near to
8000W during only one hour more,after that I dont need more heating).
The flow rate which is autosized is very high,I've tried to manual size it to 2
m3/s but it didn't work.
I've uploaded the idf file to _Problem_Submittals folder,if you can take a look it would be great.
Thanks,
Ignacio Gomis



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, YuanLu Li <yli006@...> wrote:
>
> 
> I am not sure what is your "air heating rate". As your heating load is high during the day, from 6 am, may be you are reporting some roof temperature related variables.   A 750m2 roof can be  receiving 750kW of heat from the sun.  (Assuming 1KW/m2.)  The variation of this intensity can be found by listing the solar radiation related variables in your simulation. If you will post or send  me the IDF, I will have a look at it.  Dr. Li   




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