RE: [EnergyPlus_Support] Question on Multiple zones per floors

The baseline is your building, the actual building. You have to model the building according to the ASHRAE 90.1. You have an HVAC default system, envelope and everything. This baseline it's not so simple, because you have to read carefully in order to apply the correct assumptions according to the ASHRAE 90.1.

Design builder cannot import the idf file in order to adapte it in you building. It's weird because Design builder uses E+, so if we can import an idf file, I think was intetionnally made by DB.

E+ plus has many idf files that could help you to model the ASHRAE baseline building but you have to adapte the idf file to your new building.

I think the DOE has a lot of information about energy performances. This Baseline it's not a high performance building, the new or proposed building has to be the better. Or you couldn't not have the LEED points. The baseline it's only a reference according to the USA experience. But We know that its not the same.

Here in France sometimes it's very complicated to apply this regulation. We have many others that are complicated also, so with a new one, we are very confused.

To: energyplus_support@xxxxxxxxxxxxxxx
From: yli006@xxxxxxxxxxx
Date: Thu, 24 Nov 2011 07:55:22 -0500
Subject: RE: [EnergyPlus_Support] Question on Multiple zones per floors

If this base line building is the as the reference building in EPlus, the building itself is not energy efficient.

Therefore, I do not normally border to compare with it.

Thank you for your information.

If this base line building is the EPlus reference building, the building surfaces are already defined. Why are the users still have problems with the building. May be it is because the IDF cannot be imported to DesignBuilder.

The small office reference building is a 5 zone building with a roof.

Dr. Li

To: energyplus_support@xxxxxxxxxxxxxxx
From: oscarhernandez_81@xxxxxxxxxxx
Date: Thu, 24 Nov 2011 08:42:43 +0000
Subject: RE: [EnergyPlus_Support] Question on Multiple zones per floors

Hi Dr Li,

in this moment I try to model a office building accrording to the appendix G (prm). im not really sure but the baseline model or baseline building it's a typical building according to a climatic zone. This building is defined with all the typical systems (ASHRAE 90.1). You must to model this baseline building and compare with your building (proposed) and you will have a gain, this gain will give you LEED points.

I don"t know if I was clear.

Don't hesitate.

Oscar HERNANDEZ

PHD Candidate

To: energyplus_support@xxxxxxxxxxxxxxx
From: yli006@xxxxxxxxxxx
Date: Wed, 23 Nov 2011 16:23:44 -0500
Subject: RE: [EnergyPlus_Support] Question on Multiple zones per floors

ASHRAE 90.1 appendix G

This is a guide line, when you do not know what to do.
When you have an actual case, the guilde line need not apply.

If you have many details in your actual plan and is not shown, then appling the guide line would result in less zones to simulate. The question is then will LEED certificates prepared in this way be acceptable.

I am not interested in generating LEED certificate.

Because LEED is interested in typical and averaged annual energy charges which is maialy occupancy and weather dependent. Therefore, they have their guide lines. If cost of gas per heat unit is less, a gas boiler should be used. Eplus will give you that, but it does not reduce the energy consumption.

That is why I said, high rise is by default not energy efficient.

One storey residential building does not need cooling in Summer, excep for special cases.
Hood for oven, duct vent for dryer, attic ventilation, etc.

I still do not know what is meant by "a base line model". The multiple five zone model?

Dr. Li

To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: sanphawat@xxxxxxxxx
Date: Wed, 23 Nov 2011 12:53:19 -0800
Subject: [EnergyPlus_Support] Question on Multiple zones per floors

I have attached my question and image for better discussion on multiple zone per floor. I really appreciate all thought.

I am doing a research on building typologies to compare energy demand, embodies carbon, water, etc. from Super-tall building, high-rise, mid-rise, low-rise, to single home family in the same amount of units. I am using OpenStudio for interface and run EnergyPlus for energy simulation. I would like to set the best base line medelling strategy which will effect to all building typologies energy performance.

ASHRAE 90.1 appendix G. has described on perimeter spaces should locate within 5 meter (15 feet). but in real building the lease space can be more than 5 meter.

There are corridor and service core which both are different conditions and schedules. How could we possibly model just 5 zone per floor?

Sanphawat

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