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modelling and presenting GSHP results

NC-v4 EAp2: Minimum Energy Performance
posted by Manuel Martin Delgado on Oct 14, 2021, 11:06 am

Hi,

I am working on a building that includes GSHP to cover part of the heating and cooling load. Normally, due to software constrains, we tend to just use excel calculators to predict the...

Last reply: jamy bacchus, Oct 18, 2021, 3:23 pm

ASHRAE 90.1 2010 versus ASHRAE 90.1 2016

NC-v4 EAp2: Minimum Energy Performance
posted by David Hubka on Oct 7, 2021, 9:02 am

LEED v4.1 allows onsite renewables to contribute to EAp Minimum Energy Performance and offsite Tier 2 renewables to contribute to EAc Optimize Energy Performance. 

This opens up more...

Last reply: David Hubka, Oct 13, 2021, 9:42 am

System 1/2- Ventilation Fans / Heat Recovery

NC-v4 EAp2: Minimum Energy Performance
posted by Ricardo Sá on Nov 28, 2017, 4:46 am

Hi,

we are modeling the HVAC system for the baseline building of a residential building. Since heating type in the proposed design will be electric, system 2 applies (1 PTHP shall...

Last reply: Eduardo Vidal Kume, Oct 12, 2021, 10:15 am

Water-cooled chiller connected to campus DES

NC-v4 EAp2: Minimum Energy Performance
posted by Ajit Naik on Sep 22, 2021, 10:07 am

Working on a model of a 3-floor, 96,000 SF archival facility on a campus. Dehumidification is very important and provided by low-dewpoint supply air. The air is cooled by 35F chilled water/glycol...

Choose baseline system for CAV factory

NC-v4 EAp2: Minimum Energy Performance
posted by Hyerim Kim on Sep 6, 2021, 10:07 pm

I am doing factory served by CAV...

Last reply: Marcus Sheffer, Sep 7, 2021, 11:30 am

Residential Exhaust (toilet and kitchen)

NC-v4 EAp2: Minimum Energy Performance
posted by Michelle Christopher on Aug 30, 2021, 12:08 pm

Hello, I'm trying to get some cliarity regarding residential zone exhaust (from toilet exhaust and kitchen exhaust). 

Looking at the multifamily guidelines "Supply and exhaust fans that...

Skylight

NC-v4 EAp2: Minimum Energy Performance
posted by Vassil Vassilev on Aug 3, 2021, 10:21 am

Greetings,

We have to model a retailbuilding in Climate zone 5.

The major retail zones of the project have wetical fenestration of about 1%. At the same time they are provided with...

Last reply: Marcus Sheffer, Aug 4, 2021, 9:28 am

Economizer for climate zones 2a, 3a, and 4a

NC-v4 EAp2: Minimum Energy Performance
posted by Ying Lindsey on Aug 3, 2021, 12:37 pm

I have a question regarding the economizer in climate zones 2a, 3a, and 4a. Per ASHRAE 90.1-2013 Table G3.1.2.7, no economizer is required for the baseline model for HVAC systems in the climate...

Last reply: Tyler Thumma, Aug 3, 2021, 1:07 pm

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, Aug 3, 2021, 12:42 pm

Base case System-8

NC-v4 EAp2: Minimum Energy Performance
posted by Rathnashree Bharadwaj on Jun 16, 2021, 7:50 am

We are working on a project where there are multiple...

Last reply: Tyler Thumma, Jul 15, 2021, 1:23 pm