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Baseline HVAC

CS-2009 EAc1: Optimize Energy Performance
posted by Elisabetta Annoni on Mar 24, 2011, 1:05 pm

Hi, I am about to model the baseline HVAC but it's not clear to me how i should select the energy source to determine the system according to table G3.1.1A of standard 90.1. The project is a...

Last reply: Marcus Sheffer, Oct 15, 2012, 9:44 am

SHGC vs U-factor

CS-2009 EAc1: Optimize Energy Performance
posted by Alex AC on Oct 5, 2012, 12:27 pm

Hi everybody!

I´m looking at several glass options for a building project and I want to make sure I pick the most cost-effective and energy efficient options available to me. In that...

Last reply: Marcus Sheffer, Oct 8, 2012, 10:42 am

Core & Shell Lab building

CS-2009 EAc1: Optimize Energy Performance
posted by Suraj Shah on Oct 3, 2012, 1:20 pm

We are applying for a CS project which primarily will house research labs. As part of the...

Last reply: Marcus Sheffer, Oct 4, 2012, 11:57 am

LPD and EA credit 1

CS-2009 EAc1: Optimize Energy Performance
posted by Alex AC on Sep 19, 2012, 3:31 pm

weighted average. Log in or register to post comments Alex AC LEEDuser Basic Member 6 thumbs up September 20, 2012- 12:03 pm I see. It´s all clear now. Glad to have you as a member of this forum. Have a nice...

Last reply: Marcus Sheffer, Sep 25, 2012, 3:34 pm

Night-Setback also in Baseline?

CS-2009 EAc1: Optimize Energy Performance
posted by Marco Abdallah on Sep 11, 2012, 5:38 am

THE BMS in our project is programmed with a night-setback function to reduce the temperature at NO operation (night) in winter for energy saving purpose.
As the temperature setpoints have...

Last reply: Marcus Sheffer, Sep 11, 2012, 9:27 am

Tenant Finish-Out Insulation

CS-2009 EAc1: Optimize Energy Performance
posted by Heather Holdridge on Sep 6, 2012, 1:45 pm

We're working on a core and shell project and the owner is interested in not installing insulation, but having that as a tenant finish-out item. The spaces won't be conditioned until tenants...

Last reply: Marcus Sheffer, Sep 7, 2012, 10:21 am

District heating: App G 3.1.1.1 purchased heat

CS-2009 EAc1: Optimize Energy Performance
posted by Marco Abdallah on Sep 5, 2012, 8:18 am

We just got a review with the comment:
>> If DESv2 is NOT used, and the project is receiving district heating, the district heating must be modeled in accordance with ASHRAE Appendix...

Last reply: Jorge Lopez de Obeso, Sep 5, 2012, 10:38 am

WBS: Exhaust Air Energy Recovery in Baseline HVAC

CS-2009 EAc1: Optimize Energy Performance
posted by Marco Abdallah on Jul 23, 2012, 6:46 am

Hi!
I have got a question regarding ASHRAE G3.1.2.10 "Exhaust Air Energy Recovery" which has to be applied to the baseline model.
It says that at a minimum outdoor air supply of 70 %...

Last reply: Marcus Sheffer, Jul 23, 2012, 9:42 am

Energy Model

CS-2009 EAc1: Optimize Energy Performance
posted by Oliver Preuss Hernandez on Dec 19, 2011, 5:33 pm

Marcus Sheffer LEED Fellow 7group / Energy Opportunities LEEDuser Expert 5783 thumbs up December 19, 2011- 9:37 pm Interestingly enough we just finished an Energy Plus model with a double facade. This is a bit too involved to explain in a LEED forum. I'd suggest checking in with the Design Builder folks or the Energy Plus help desk on how to do the modeling. Typically you build spaces in a model and them assign characteristics, including mass, to the elements of those spaces. As far as a CS project is concerned- yes you will need to model all the energy use associated with the whole building...

Last reply: Santiago Rodriguez, Jul 12, 2012, 5:34 pm

SHGC for the whole window or just glass?

CS-2009 EAc1: Optimize Energy Performance
posted by Marco Abdallah on Jun 1, 2012, 8:26 am

Hi,
i am working on a WBS according to App. G. Regarding the fenestration of the baseline building the ASHRAE states an...

Last reply: Marcus Sheffer, Jun 1, 2012, 9:54 am