Hello all,
Our team take cold warehouse project, i have a one question.
Cold storage setting point: -10℃(14Ｆ)
in front storage, there are freezer space, : 5℃(41Ｆ)
The freezer space is loading/unloading area, some of people working on there.
Project area has a variable temperature and humidity by seasonally,
if we bring the outdoor airflow according to ASHRAE 62.1 2016, I worried about condensation.
How do other countries handle these types of spaces?
Devendra Chaughule
Senior Manager - Sustainable ServicesSurmount
29 thumbs up
March 29, 2023 - 8:41 am
Eric,
The cold storage store below 0 degree C do not need to comply for outdoor air. https://www.usgbc.org/leedaddenda/10423
Further, the loading/unloading area is required to comply with the requirements of EQp1 - https://www.usgbc.org/leedaddenda/5930
Regards
Devendra C.
Eric Kim
1 thumbs up
March 29, 2023 - 8:07 pm
Thanks, Devendra!
It was really helpful information.
I have a one more question
We condideration natural ventilation in Loading/Unloading area.
If that all dock parked with truck, can we demonstrate the area of the opening ?
Best Regrads,
Devendra Chaughule
Senior Manager - Sustainable ServicesSurmount
29 thumbs up
March 30, 2023 - 1:18 am
Yes, you can demonstrate the area of the opening.
But additionally, there are other compliance requirements for naturally ventilated spaces. Please refer to LEEDv4.1, naturally ventilated areas, option 1 - Meet the requirements of ASHRAE 62.1-2016 with addendum l.
I have not attempted any space compliance related to naturally ventilated spaces. Any other can throw some light on the same.
Please let me know which type of rating are you going to apply for this cold warehouse project.
Regards
zz kelvin
1 thumbs up
March 30, 2023 - 3:42 am
leedaddenda/5930 It belongs to version 2.2. I don't think it's necessary to request a new version, right? Moreover, the loading and unloading area is also a cold storage area, and it is basically impossible to introduce fresh air. As stated in leedaddenda/5930, it does not comply with general design specifications and can cause condensation problems. In addition, when the loading and unloading area is decorated, the external doors will open and fresh air will be introduced. Personally, I think it seems unreasonable to require this area to meet the ASHRAE 62.1 2016 requirements. I hope the official can clarify that many cold storage projects encounter similar problems.
zz kelvin
1 thumbs up
March 30, 2023 - 7:46 am
leedaddenda/5930 belongs to version 2.2, shouldn't it need to be applied to the new version V4?
Eric Kim
1 thumbs up
March 30, 2023 - 8:08 pm
Dear Kelvin,
I agree your opinion.
If we bring the Outdoor air naturally or mechanically, anyway it'll caused condensation.
leedaddenda/5930 ruling It's just a formal answer.
therefore I think that isn't related version.
I wish know how to solve this problem other country.
Regards,
Emma Loris
August 21, 2023 - 10:59 pm
Managing a cold warehouse project involves unique challenges, especially concerning temperature differentials and potential condensation. In front of the storage area, where the temperature is 5℃ (41°F), and with a freezer space for loading/unloading at -10℃ (14°F), there's a potential for condensation due to varying humidity. One approach that other countries often adopt is to implement efficient airlock systems at entry points to minimize the exchange of humid outdoor air. Additionally, employing dehumidification units within the loading/unloading area can help regulate moisture levels and prevent condensation buildup. This, coupled with proper insulation and air circulation, can maintain stable conditions while adhering to ASHRAE standards. Consulting experts in HVAC and warehouse management can provide further insights tailored to your specific project and environmental conditions. i got this important valuable knowledge from an expert who is a commercial freezer expert. the situation interconnected with all freezer manual. ( https://www.ancasterfoodequipment.com/product/true-commercial-freezers/3... )