Re: [EnergyPlus_Support] free floating simulation

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Subject: Re: [EnergyPlus_Support] free floating simulation

From: "josep.sole@xxxxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>

Date: Mon, 25 Aug 2014 11:56:51 +0000

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Thread-topic: [EnergyPlus_Support] free floating simulation

In a free floating situation you dosen't have any thermostat neither HVAC
Under free floating conditions you can compare temperatures but not energy demand

Jsb

De: energiedarchitettura@xxxxxxxxx [EnergyPlus_Support] [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
Enviado: Sunday, August 24, 2014 11:02 AM
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Asunto: [EnergyPlus_Support] free floating simulation

Hi,I'm trying to evalutae the influence of a green roof on a building in a free floating condition, compared to a standard pitched roof.
I need to calculate the energy demand and the mean air temerature of both buildings, in a free floating model, that is without any HVAC plant, so to calculate the contribution that different roof types offer to the energy efficiency of the envelope.
I created the two models but running the simulation with E+, the mean air temperatures are exactly the same.
What's the proper way to set parameters to run such kind of simulation?
Do I need to set n ideal thermostater anyway?
Or an ideal air system?
Thanks for your help.

Caterina

Via G. Pascoli, 8
55043 Lido di Camaiore (LU)
mobile 347.1097637
fax 0584.1711021
energiedarchitettura@xxxxxxxxx

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Posted by: <josep.sole@xxxxxxxxxxx>

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[EnergyPlus_Support] free floating simulation
- From: energiedarchitettura@xxxxxxxxx [EnergyPlus_Support]