RE: [EnergyPlus_Support] Re: Error: Heating Load is Zero

Good morning Jean.

yes, it's a big model.

I checked what you told me and I think I was wrong.

What is happening, is that my simulation generates a big number of hours set point not met (cooling), and the system is set to autosize.

I thought the heating loads the program shows me in the error report, were the internal loads in the area and hvac was not working.

Técg. Ivan Mezzacapa

Projetista de Ar Condicionado / Consultor de Eficiência Energética em Ar Condicionado

LinkedIN: http://www.linkedin.com/in/ivanmezzacapa

Facebook: http://www.facebook.com/ivan.mezzacapa

Celular: (11)9963-9326

To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: jeannieboef@xxxxxxxxx
Date: Wed, 19 Jun 2013 08:28:14 +0000
Subject: [EnergyPlus_Support] Re: Error: Heating Load is Zero

The first two errors are for internal zones...the others are probably also, i've not checked. There is no infiltration to any zones (as you said). The zone adjacent to these zones has a large glass front which lets solar in, but little heat escapes. This is a factory and there are some major internal loads. Many of the ODA rates are less than 1.

8.7, !- Maximum Dry-Bulb Temperature {C}
8.3, !- Daily Dry-Bulb Temperature Range {deltaC}

May sound cold, but if the building is still warm from the day before, it may not matter...as soon as the sun comes up, the solar will come.

1) Do you expect a heating load?
2) Why?

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Ivan Mezzacapa <ivan_slip@...> wrote:
>
> Hi!
> i'm getting this error and don't know why.
> My thermostat is Ok and my schedules to.
> ** Warning ** Calculated design heating load for zone=85APOIO:MANUTENCAOOFFICE is zero. ** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs. ** Warning ** Calculated design heating load for zone=85APOIO:METALOG is zero. ** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs. ** Warning ** Calculated design heating load for zone=85APOIO:GARANTIA is zero. ** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs. ** Warning ** Calculated design heating load for zone=80PRODUCAO:RCBMNTQLDDFRNCDR is zero. ** ~~~ ** Check Sizing:Zone and ZoneControl:Thermostat inputs.
> How can i solve this?
> Thanks!
> Tï¿½cg. Ivan Mezzacapa
> Projetista de Ar Condicionado / Consultor de Eficiï¿½ncia Energï¿½tica em Ar Condicionado
> LinkedIN: http://www.linkedin.com/in/ivanmezzacapaFacebook: http://www.facebook.com/ivan.mezzacapaCelular: (11)9963-9326
>

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