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Modelling Condenser Efficieny in Baseline for LEED

NC-2009 EAc1: Optimize Energy Performance
posted by heinrich post on Mar 26, 2011, 9:05 am

We are modelling a building with water cooled chillers.
We are preparing a baseline plant for LEED NC 2009.
For the check of necessary plant efficiencies we checked the minimal...

Last reply: Marcus Sheffer, Apr 5, 2011, 10:00 am

Wood as thermal barrier

NC-2009 EAc1: Optimize Energy Performance
posted by javier bolanos zeledon on Mar 15, 2011, 8:39 am

Is it valid to use 1"...

Last reply: Marcus Sheffer, Mar 16, 2011, 3:24 pm

Major renovation

NC-2009 EAc1: Optimize Energy Performance
posted by javier bolanos zeledon on Mar 16, 2011, 7:02 am

This is a major renovation of an old office building. The new building will use structural walls and metal roof of previos building. That building had no insulation on roof, it was just a metal...

Last reply: Marcus Sheffer, Mar 16, 2011, 3:13 pm

IT ROOM LOADS

NC-2009 EAc1: Optimize Energy Performance
posted by javier bolanos zeledon on Mar 14, 2011, 5:31 pm

In an IT room there are envelope loads and equipment loads due to HVAC needed to cool the space. Also the electric load due to the IT equipment running. It is clear to me that this last one is a...

Last reply: javier bolanos zeledon, Mar 16, 2011, 2:35 pm

Weather data

NC-2009 EAc1: Optimize Energy Performance
posted by javier bolanos zeledon on Mar 10, 2011, 12:47 pm

I'm modeling a project oustide the US with Carrier HAP. This place is not in the weather data base of HAP, or DOE's web page, and even though it was, HAP does not allow IWEC files, so I'm kind...

Last reply: javier bolanos zeledon, Mar 12, 2011, 6:09 pm

Deriving Minimum Efficiency Requirements for Baseline Chillers

NC-2009 EAc1: Optimize Energy Performance
posted by heinrich post on Mar 11, 2011, 9:38 am

We are wondering how to interpret the Minimum Efficiency Tables of Chapter 6.8 in ASHRAE 90.1-2007 to model HVAC efficiencies of baseline equipment.
Our baseline building has a floor area...

Last reply: Marcus Sheffer, Mar 11, 2011, 11:57 am

Modeling Snow-Melt Systems

NC-2009 EAc1: Optimize Energy Performance
posted by David Hubka on Mar 11, 2011, 8:12 am

I am modeling a LEED building that includes a snow melt system. The system is served by the building's hot water boiler. This boiler also provides hot water to the coils within the building's air...

Last reply: Marcus Sheffer, Mar 11, 2011, 9:17 am

Base Building for a mixed use project

NC-2009 EAc1: Optimize Energy Performance
posted by Graciela Carrillo on Mar 9, 2011, 4:10 pm

We have a project that is a mix-used 23,000 SF bldg. The lower story is commercial (8,000 SF) and 2-stories of residential (15,000 SF). The project will follow LEED NC 2009 and will achieve this...

Last reply: David Hubka, Mar 10, 2011, 2:02 pm

Baseline Building Envelope requirements

NC-2009 EAc1: Optimize Energy Performance
posted by alberto carlesi on Mar 9, 2011, 11:49 am

Hi, I'm modeling a building (not residential),for EAc1, located in climate zone 6 (winter design temperature 5°F). Proposed building envelope is high insulated, thus heating system capacity for...

Last reply: Marcus Sheffer, Mar 9, 2011, 2:32 pm

Exhausted heat

NC-2009 EAc1: Optimize Energy Performance
posted by Kath Williams on Mar 3, 2011, 12:42 pm

Can a LEED project use exhausted/waste heat (and claim credit of some kind) from an adjacent building that is not being included in LEED project boundary?

Last reply: Marcus Sheffer, Mar 7, 2011, 4:33 pm