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Calculating Baseline Fan Power and CFM?

NC-v4 EAp2: Minimum Energy Performance
posted by Rajat Wadhwa on Sep 15, 2023, 4:57 pm

How should I calculate the Fan CFm and power for Baseline LEED Model, Autosize the baseline system , then use Q=mCpDeltaT to calculate fan CFM and then find out the HP and use pressur adjustment...

Last reply: Tyler Thumma, Sep 29, 2023, 10:08 am

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