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Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Refrigerations system

Do the refrigeration system such as walk-in coolers or refrigeration cases must be detailed modeled in the simulation program (E+)? or is it possible consider them as a process loads?

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Fri, 06/28/2013 - 14:20

They are a process load. How you calculate or model the energy use is up to you. You should do so as accurately as you can within reason. If they are a significant part of the overall energy use more time should be taken to ensure accuracy. The greater the impact on overall usage the more time should be spent.

Wed, 07/24/2013 - 08:02

About the process load in Retail, the table 1 of EAc.1 have to be used for both baseline and proposed? In case we have a detailed datasheets of process equipments, may we use these values both for baseline and proposed in place of table 1? Thank you
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Wed, 07/24/2013 - 13:31

The table which lists the values for a variety of retail equipment should be used for the Baseline. You should model the Proposed with the actual equipment being installed. Hopefully your Proposed systems use less energy than the Baseline!

Fri, 07/26/2013 - 14:21

But, if in the table 1 the characteristics of the machines are very different (or even missing) respect those that we have in the Retail (the location is in Italy and there are specific mechanical process of food preparation), how do we have to do? Do we have to use the same values of the Proposed also in the Baseline? Thank you very much
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Fri, 07/26/2013 - 14:39

The purpose of table 1 was to establish baselines that projects could claim savings against. If you are not claiming any savings simply model the proposed equipment identical in the baseline.

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