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WWR allowances

NC-v4 EAp2: Minimum Energy Performance
posted by Julio Fernandez Amodia on Nov 24, 2022, 2:39 am

Hi there,

I am calculating the energy performance of a highrise building located in a warm climate place. The client want to have a very high WWR (>60%) even in the south facade. I...

Last reply: Julio Fernandez Amodia, Nov 24, 2022, 1:19 pm

Air Curtains in ASHRAE/IES Standard 90.1-2019

NC-v4 EAp2: Minimum Energy Performance
posted by Nima Soltani on Oct 29, 2021, 7:56 am

Recent ASHRAE/IES Standard 90.1-2019 Updates include the possibility of installing an air curtain system instead of installing a Vestibule / Revolving Door Entrance.

Can this ruling be...

Last reply: Jamy Bacchus, Nov 22, 2022, 8:52 pm

According to ASHRAE 90.1, Is it mandatory to install occuppant sensors in electrical and mechanical rooms?

NC-v4 EAp2: Minimum Energy Performance
posted by Sara BENLOUBA on Nov 1, 2022, 12:09 pm

According to ASHRAE 90.1 / Section 9.4.1.2 , Do we have to install occupant sensor or a timer switch in electrical and mechanical rooms? 

Thanks, 

Last reply: Marcus Sheffer, Nov 2, 2022, 9:32 am

Stairwell Lighting zone

NC-v4 EAp2: Minimum Energy Performance
posted by Agnieszka Rylska on Jan 28, 2020, 8:21 am

According to ASHRAE 90.1, section 9.4.1.6 „g. Stairwell Lighting – Lighting in stairwells shall have one or more control devices to automaticcly reduce lighting power in any one controlled zone...

Last reply: Marcus Sheffer, Oct 12, 2022, 11:15 am

Distribution center, unconditioned space

NC-v4 EAp2: Minimum Energy Performance
posted by santiago sanchez on Oct 3, 2022, 5:42 pm

Good afternoon all,

We are working on a distribution center, most of the project is a merchandise warehouse with automatic systems for the movement of the merchandise, such as shuttle...

Last reply: Marcus Sheffer, Oct 7, 2022, 5:20 pm

Non-predominant condition on multifamily building

NC-v4 EAp2: Minimum Energy Performance
posted by Nicolas Martinez Ochoa on Oct 4, 2022, 4:05 pm

Hello everyone,

We have worked on several residential projects, but we want to bring back a question that has some contradicting (and confusing) answers trying to get an updated solid...

Last reply: Marcus Sheffer, Oct 7, 2022, 5:15 pm

Mixed-mode ventilation

NC-v4 EAp2: Minimum Energy Performance
posted by Nikos Tsitsikas on Sep 13, 2022, 9:41 am

Hi,

We are working on a project which should have mixed-mode systems for ventilation. What we would like to know is how we should be estimating the fresh air rates for the Baseline model?...

Last reply: Tyler Thumma, Oct 4, 2022, 7:57 pm

Selection of baseline system type for industrial object- Number of floors Vs area

NC-v4 EAp2: Minimum Energy Performance
posted by Anna Korinkova on Sep 23, 2022, 8:37 am

Hello everyone,

I would like to ask for your views on the selection of baseline system type for industrial objects. As a specific example, we have a production hall with 32,000m2, 11m tall...

Last reply: Anna Korinkova, Oct 4, 2022, 5:46 pm

DES modeling Path 2 or Path 3 under Campus Approach

NC-v4 EAp2: Minimum Energy Performance
posted by Anna Korinkova on Sep 22, 2022, 9:51 am

Hello everyone, 

we are setting energy modeling strategy for a major industrial plant with an on-site...

Last reply: Anna Korinkova, Sep 22, 2022, 2:17 pm

Hot Gas Reheat

NC-v4 EAp2: Minimum Energy Performance
posted by Nicolas Martinez Ochoa on Sep 19, 2022, 6:49 pm

Hello everyone,

We are working on a project with dehumidification, which has a hot gas reheat to decrease the heating load after the cooling stage. 

Can I claim savings because of...

Last reply: Cory Duggin, Sep 19, 2022, 7:16 pm