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Air Economizer laboratory

NC-v4 EAp2: Minimum Energy Performance
posted by Abdulrahman Alshbeeb on Sep 15, 2023, 3:08 am

We have a laboratory with very high indoor air requirements. Due to the high demands on the quality of the room air, no air may be circulated....

Last reply: Tyler Thumma, Sep 29, 2023, 10:12 am

Humidity controls in baseline model

NC-v4 EAp2: Minimum Energy Performance
posted by Nicolas Martinez Ochoa on Jul 15, 2021, 4:43 pm

Hello everyone,

I am currently working on the energy model of an apartments building in Miami. The building has rooftop units to provide OA (which provides 30% more than the 62.1...

Last reply: Tyler Thumma, Sep 29, 2023, 9:50 am

Baseline system in ASHRAE 90.1 G3.1.1

NC-v4 EAp2: Minimum Energy Performance
posted by Eric Dyer on Sep 13, 2023, 4:30 am

Hello,

I have a question in the process of creating a baseline system in our modelling.
Our project is in System8.

System8 is described in ASHRAE 90.1 G3.1.1 as "each floor...

Last reply: Eric Dyer, Sep 13, 2023, 7:30 pm

Modeling System 5 per floor

NC-v4 EAp2: Minimum Energy Performance
posted by Rajat Wadhwa on Aug 24, 2023, 1:43 pm

Hi I am modeling a building with baseline system as 5 now based on Table G 3.1.1 , it says we need to model 1...

Last reply: Marcus Sheffer, Aug 24, 2023, 4:14 pm

Schedule for Data Center Load

NC-v4 EAp2: Minimum Energy Performance
posted by Rajat Wadhwa on Aug 7, 2023, 3:14 pm

Hi I am modeling a Data Center what schedule should I use for IT loads, should I run it for 100% all the time?

Last reply: Marcus Sheffer, Aug 9, 2023, 4:37 pm

Renewable Energy Production

NC-v4 EAp2: Minimum Energy Performance
posted by Piotr Adamczyk on Aug 9, 2023, 2:32 am

Dear All,

I want to ask you how you approach taking into account the yield of the photovoltaic installation in the MEPC calculator.
I received the yield calculation from the designer...

Last reply: Marcus Sheffer, Aug 9, 2023, 4:27 pm

Baseline Model for Data center Economizer

NC-v4 EAp2: Minimum Energy Performance
posted by Rajat Wadhwa on Aug 8, 2023, 12:36 pm

Hi, 

I have encountered an issue with the baseline model for Data Center , based on LEED Comments we are using system 8 and for climate zone 5a the economizer shut off limit is 70F, the...

Last reply: Moses Chong, Aug 8, 2023, 12:55 pm

AHSRAE 90.1, G3 Modeling Question- External Louvers/Shades

NC-v4 EAp2: Minimum Energy Performance
posted by Brian Salazar on Aug 7, 2023, 11:47 am

Hello!  Our team is researching opportunities to reduce SHG loads on an 8-story new construction university residence hall.  The question has come up regarding the use of external-fixed louvers...

Last reply: Marcus Sheffer, Aug 7, 2023, 11:59 am

In what case we don't have to run a baseline model with all 4 rotation

NC-v4 EAp2: Minimum Energy Performance
posted by Rajat Wadhwa on Jul 29, 2023, 1:54 pm

Hi , I am working on a LEED Data center model with majority of space as vault, now I know for an existing building we dont need to rotate but for a data center do we need to rotate as the...

Last reply: Marcus Sheffer, Jul 31, 2023, 9:05 am

Default EIA rates for India

NC-v4 EAp2: Minimum Energy Performance
posted by Moses Chong on Jul 26, 2023, 5:43 pm

Hi! I'm working on a project in India. We cant obtain the utilities rates so we were trying to use the deafault EIA rates like other projects we did in the US. However it looks like EIA.gov does...

Last reply: Moses Chong, Jul 28, 2023, 11:14 am