Re: [EnergyPlus_Support] calculated heating load zero

[Jeremiah Crossett <jcrossett@xxxxxxxxxxxxxxx>]

Thanks Linda-For the items you suggest I have the following values:

Infiltration> I thought this was correct by now less sure>

• Using AirFlow network so standard infiltration object was removed- I will investigate this as a possibility. (I guess I will try to add 3.5 ACH with airflow network, or if needed delete the airflow network and add an infiltration object) 

Internal gains>I have went through these in detail>

• Lighting is per AHRAE 90.1 (dorm room 4.1 W.m2) , Equipment is per design (1 W/SQFT) People 5 m2/person

Using WinterDesignDay schedules>  Correct me if I am wrong Design Days are not a "schedule" by object classification

• ASHRAE 99.6% winter design day

Jeremiah D. Crossett  | Senior Analyst  |  Phase Change Energy Solutions

120 E. Pritchard St.  | Asheboro, NC 27203  | Mobile 503-688-8951

www.phasechange.com 

 

  

On Tue, Sep 11, 2012 at 4:08 PM, Linda Lawrie <linda@xxxxxxxxxxxxxx> wrote:

 

Add infiltration?
Checked internal gains?
Using WinterDesignDay schedules?

At 05:01 PM 9/11/2012, Jeremiah Crossett wrote:

Hello-
It seems that no matter what I do to this file it results in this warning-

** Warning ** Calculated design heating load for zone=BLOCK1:ZONE1 is zero.
   **   ~~~   ** Check Sizing:Zone and ZoneControl:Thermostat inputs.

I have checked and changed out thermostats, changed setpoints, changed wall and roof insulation thickness etc but nothing seems to make this file come close to the designed heating load of 2600 Btu/h..

Anyone have advise please?

Thanks




Jeremiah D. Crossett  | Senior Analyst  |  Phase Change Energy Solutions
120 E. Pritchard St.  | Asheboro, NC 27203  | Mobile 503-688-8951
www.phasechange.com
 

 







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