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U-Value / F-Factor

CS-2009 EAp2: Minimum Energy Performance
posted by Ciaran McCabe on Aug 18, 2016, 11:38 am

Hi,

I have calculated the U-Value of a Slab on Grade Floor to be 0.12 (metric) using 100mm insulation. The Leed reviewer wants to see the F-Factor equivalent in agreement with ASHRAE 90.1...

Last reply: Marcus Sheffer, Aug 19, 2016, 11:56 am

Air Cooled Chiller Vs Water Cooled Chiller With Dry Air Cooler

CS-2009 EAp2: Minimum Energy Performance
posted by Ciaran McCabe on Aug 19, 2016, 11:14 am

Has anyone any feedback in modelling either of these two chillers in a 90.1 Energy model. Are people finding that the large fans in the dry air cooler adds a significant additional electrical...

Building Area Method- highlighting merchandise

CS-2009 EAp2: Minimum Energy Performance
posted by Francesco Passerini on Jul 27, 2016, 6:59 am

For a building I have to use the Building Area Method (ASHRAE 90.1-2007, 9.5.1) because some calculations were already developed through that method and now changing the method would be...

Last reply: Marcus Sheffer, Jul 27, 2016, 9:49 am

ACP % calculation

CS-2009 EAp2: Minimum Energy Performance
posted by Charalampos Giannikopoulos on Jul 15, 2016, 2:57 pm

For the calculation of the % of energy cost influenced or directly controlled by CS Owner/Developer would the the latter be compared to the total energy cost of the proposed and not the baseline...

Last reply: Marcus Sheffer, Jul 19, 2016, 11:50 am

ASHRAE requirements for dry-coolers

CS-2009 EAp2: Minimum Energy Performance
posted by Agata Mozer on Jun 29, 2016, 9:30 am

Cooling system in our project (shopping mall) consists of dry-coolers sprayed with water. What are ASHRAE efficiency requirements for dry-coolers? Should they be qualified as air-cooled...

Last reply: Agata Mozer, Jul 4, 2016, 3:38 am

Mechanical System by Future Tenant

CS-2009 EAp2: Minimum Energy Performance
posted by Andrew Chan on Jun 30, 2016, 1:09 pm

We have an office core/shell project that we are considering for certification. The Owner may want to just design a small mechanical unit to service the restrooms and not much more. The future...

Last reply: Marcus Sheffer, Jul 1, 2016, 9:54 am

HVAC modelling for Tenant Occupied Spaces

CS-2009 EAp2: Minimum Energy Performance
posted by Saumendra Aggrawal on Jun 17, 2016, 5:45 am

I am working on a project, which is going for LEED C&S. The project has tenant occupied space, which has designed HVAC system for it. I want to know if there is any provision for modelling...

Last reply: Marcus Sheffer, Jun 19, 2016, 4:52 pm

% of Glazing & Floor Area Base Case vs Project

CS-2009 EAp2: Minimum Energy Performance
posted by Dana Guzman on Jun 10, 2016, 11:36 pm

Hi, I am new to LEED and looking at the energy model submitted by our consultant for the compliance on EAp2. I have a basic question. Should the base case scenario and the real project be...

Last reply: Christopher Schaffner, Jun 16, 2016, 11:00 pm

Base Case vs Project Case

CS-2009 EAp2: Minimum Energy Performance
posted by Dana Guzman on Jun 14, 2016, 6:19 pm

Hi, can you kindly clarify whether the glazing percentage and floor area for the base case needs to match the project case when reviewing compliance for EAp2?

Elevator lobby as vestibule- ASHRAE Standard 90.1

CS-2009 EAp2: Minimum Energy Performance
posted by Paul Deinhofer on Jun 8, 2016, 3:01 am

Hi,

I have a question concerning the the function of a elevator lobby as a vestibule.
Regarding to Standard 90.1, every building entrance that separate cond. space from the exterior...

Last reply: Marcus Sheffer, Jun 9, 2016, 11:22 am