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DES Systems

NC-v4 EAp2: Minimum Energy Performance
posted by Charalampos Giannikopoulos on Mar 16, 2023, 7:02 am

Dear LEEDUser friends,

for a project with district systems where Option 1, Path 1 will be implemented how will be the HVAC efficiencies for the proposed model defined? Appendix G, G3.1.1.1...

Project is not required to simulate baseline in 4 orientations

NC-v4 EAp2: Minimum Energy Performance
posted by Michael on Feb 16, 2023, 2:57 am

I would like to understand the line: the project is not required to simulate 4 baseline orientations because the building orientation is dictated by the site consideration. What does "Site...

Last reply: Marcus Sheffer, Mar 7, 2023, 10:07 am

Minimum OA and makeup air

NC-v4 EAp2: Minimum Energy Performance
posted by Nicolas Martinez Ochoa on Feb 22, 2023, 5:02 pm

Hello,

We are working on a residential project with a central laundry room with a 2200 cfm exhaust rate (each dryer has a dedicated exhaust fan). Per ASHRAE 62.1-2010, this space requires...

Last reply: Moses Chong, Mar 2, 2023, 10:23 am

Retail service toilets thermal zone

NC-v4 EAp2: Minimum Energy Performance
posted by Julio Fernandez Amodia on Feb 22, 2023, 12:48 pm

but there are other sources out there such as PNNL, and also forums such as unmethours. But at the end of the day, a lot of times is about a judgment call, and keeping things fair between baseline and proposed models,...

Last reply: Julio Fernandez Amodia, Feb 27, 2023, 10:32 am

Window to wall ratio-Existing Building

NC-v4 EAp2: Minimum Energy Performance
posted by Helena Garcia on Feb 20, 2023, 7:29 am

Dear LEEDusers,

A question related with the proposed and baseline building energy models for a BD+C project:

For an existing building where only single parts of the envelope will be...

Model service infrastructure for energy simulation

NC-v4 EAp2: Minimum Energy Performance
posted by Linh Dang on Feb 15, 2023, 5:17 am

Dear all

We are doing an energy simulation for a factory project and it has a wastewater treatment building using AC and OA fans. Now we only model the manufacturing building. So do we...

Scope of ASHRAE 90.1:2010 section 9, in what regards to existing external lighting

NC-v4 EAp2: Minimum Energy Performance
posted by Ricardo Sá on Feb 7, 2023, 1:38 pm

In the context of a refurbishment, are the existing luminaires exempt from complying with the exterior lighting power and/or exterior lighting control requirements stated in ASHRAE 90.1:2010...

Last reply: Marcus Sheffer, Feb 7, 2023, 5:52 pm

ASHRAE 90.1:2010 Pipping insulation Table, note d. direct-buried heating and hot-water systems piping

NC-v4 EAp2: Minimum Energy Performance
posted by Ricardo Sá on Feb 3, 2023, 4:56 am

Hello,

We’re currently involved in the LEED Certification of a new building to be built in Portugal. In what relates with pipping insulation, we have a doubt related with one of...

Last reply: Ricardo Sá, Feb 7, 2023, 11:34 am

Canadian ACP- NECB ASHRAE Exceptions Clarification

NC-v4 EAp2: Minimum Energy Performance
posted by Kristina K on Feb 2, 2023, 9:39 am

Hello,

In the statement below from the Canadian ACP - NECB, does the Bolded sentence mean that projects do not have to adhere to those specified sections of...

Last reply: Marcus Sheffer, Feb 2, 2023, 5:10 pm

System 2 as the baseline system for the whole project

NC-v4 EAp2: Minimum Energy Performance
posted by Amal Venugopal on Jan 21, 2023, 8:29 pm

We are doing the energy model for one of our projects. This project is a luxurious resort with LGF, GF, 1F & 2F will be located in KSA. Greetings!...

We have a question regarding the...

Last reply: Marcus Sheffer, Jan 27, 2023, 2:01 pm