RE: [EnergyPlus_Support] Problem with results of a simulation

If your interest is in generating LEED certificate then you should request for monthly reports. For energy conervation, the LEED certification does not do eny thing.

When you obtained the result as below, you should have proceed to look at the source of the heat load.

In he last IDF you sent me, it is still without the display of Outdoor Dry Bulb temperture, and the Zone mean air temperature.

Without these, how do you know whether your system is doing heating or cooling. VAV with water coil cooling and water reheat coil in the zone may not be the right system for you.

With the load deman value of 25kW for each zone, you should not need the use a water system.

Your lowest Winter temperature is 3.9° C. The air to air heat pump will serve both heating and cooling. Infact, the heating not be required at all. Cooling could be satisfied using naural ventilation, and extgernal shading.

This is just my observation from reading your 3 IDF's.

Dr. Li

To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: nachogo27@xxxxxxxxx
Date: Thu, 10 Nov 2011 14:34:28 +0000
Subject: [EnergyPlus_Support] Problem with results of a simulation

Hi,
I'm having some strange results from a simulation in Energy+.
The building is composed by 2 zones,each one of 50X15(m)and a height of 5 meters.
//////////////////
/ / /
/ / /
/ 750m2 / 750m2 /
/ / /
/ / /
//////////////////
The results of "Ideal Loads Air Heating Rate" are very high,the peak is almost 750000W for each zone.The peak value occurs at 6:00am when the thermostat change the temperature target.(Almost all the days I have this peak).
The results of "Ideal Loads Air Cooling Rate" are normal, the peak is near 25000W for each zone.
I can send the files if someone needs it to help me.
Thanks
P.S.:The simulation is for Malaga(Spain)

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