Effect of Building Pressurization with Heat Recovery Device
Effect of Building Pressurization with Heat Recovery Device
(OP)
I need a second opinion in my ongoing project as follows.
We have considered heat recovery device in the current high and low bay warehouses by which most of the supplied fresh air will be exhausted via heat recovery device but recently our client informed us that the low bay warehouse will be provided with 3 big doors which will be kept open for loading the trucks with cartoons from warehouse. If we exhaust most of the supplied fresh air while keeping the doors open, Its highly possible that warehouses will be negatively pressurized and subjected to huge infiltration, though we can provide air curtains but they are not very effective to deal with infiltration.
So I am thinking to exclude heat recovery device so that we can have enough fresh air in the warehouse to avoid infiltration but we will provide some wall mounted exhaust fans to avoid over pressurization in the event when doors are closed.
We have considered heat recovery device in the current high and low bay warehouses by which most of the supplied fresh air will be exhausted via heat recovery device but recently our client informed us that the low bay warehouse will be provided with 3 big doors which will be kept open for loading the trucks with cartoons from warehouse. If we exhaust most of the supplied fresh air while keeping the doors open, Its highly possible that warehouses will be negatively pressurized and subjected to huge infiltration, though we can provide air curtains but they are not very effective to deal with infiltration.
So I am thinking to exclude heat recovery device so that we can have enough fresh air in the warehouse to avoid infiltration but we will provide some wall mounted exhaust fans to avoid over pressurization in the event when doors are closed.





RE: Effect of Building Pressurization with Heat Recovery Device
also, with HRV the fresh air is coming through the HRV itself and if you remove it then how would you provide fresh air?
RE: Effect of Building Pressurization with Heat Recovery Device
Best to you,
Goober Dave
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RE: Effect of Building Pressurization with Heat Recovery Device
RE: Effect of Building Pressurization with Heat Recovery Device
RE: Effect of Building Pressurization with Heat Recovery Device
I do like the suggestion of using supplemental outside air unit to energize when the loading doors are open.Please see attached file for cooling capacities and air quantities.
RE: Effect of Building Pressurization with Heat Recovery Device