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Warehouses-NC-v4 EAp2:Minimum energy performance

Warehouse with refrigerated cold stores

Greetings,

At the moment we are creating an energy model for a big warehouse, consisting of three floors.
In this warehouse, there are huge areas with cold stores for various consumable products. These stores are served by air cooled ammonia refrigeration equipment.

The question is:

For the Baseline model (it’ll be System 8), how to proceed with these cold stores. Should they be modeled identical to the Proposed model (project design), or it should follow the rules for System 8 – meaning a system per each floor.

Your suggestion is highly appreciated.

Thanks.

Vassil 

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Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Thu, 08/24/2023 - 14:02

Since this is a process load it gets modeled identically in both models. If you want to engage an exceptional calculation and claim savings here is a guide to do so https://www.usgbc.org/leedaddenda/10424 

Thu, 08/24/2023 - 14:38

Hi Marcus, Thanks for the reply. There is one more question related to these cold rooms, because in the project design, there is a heat recovery option. It means that  a separete heat exchanger is provided, which direct part of the rejected heat to the heating systems serving the other warehouse areas. The question is: Should this option be avoided for the Baseline. Thanks. Vassil
Profile picture for user sheffer
Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Thu, 08/24/2023 - 15:45

The short answer is no, it should be in the baseline too. That strategy would show an energy savings, so you have to follow the exceptional calculation method to claim savings. 

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