Exhaust Strategy for Garbage Room and Corridors
Exhaust Strategy for Garbage Room and Corridors
(OP)
Dear all,
I would kindly ask for an information please...
1) Situation: Typical floor with staircase, lift lobby, studio apartment and garbage room. studio will be conditioned via Fan coils where fresh air is treated and supplied from air handling unit to back of FCU. FCU recircuates room air. Exhaust is provided via bathroom with ratio of 95% of supplied fresh air into a zone. Rules of thumbs suggest 10ACH exhaust rate. If I comply with this concept, I will exhaust much less than 10ACH e.g. 2-3ACH.
In lift lobbies I have similar concept. Fresh air is supplied to lift lobby and exhausted via garbage rooms (exhaust ratio is 95% of supplied fresh air). Again ,Rules of thumbs suggest 10ACH exhaust rate. The idea is to maintain garbage room under pressure to prevent odour escaping garbage room and entering lift lobby via cracks etc. If I comply with this concept, I will exhaust much less than 10ACH e.g. 2-3ACH. In both cases, FCU covers sensible cooling loads.
My question is....Shall I comply with 95% exhaust strategy regardless of recommendations or 10ACH strategy?
I would kindly ask for an information please...
1) Situation: Typical floor with staircase, lift lobby, studio apartment and garbage room. studio will be conditioned via Fan coils where fresh air is treated and supplied from air handling unit to back of FCU. FCU recircuates room air. Exhaust is provided via bathroom with ratio of 95% of supplied fresh air into a zone. Rules of thumbs suggest 10ACH exhaust rate. If I comply with this concept, I will exhaust much less than 10ACH e.g. 2-3ACH.
In lift lobbies I have similar concept. Fresh air is supplied to lift lobby and exhausted via garbage rooms (exhaust ratio is 95% of supplied fresh air). Again ,Rules of thumbs suggest 10ACH exhaust rate. The idea is to maintain garbage room under pressure to prevent odour escaping garbage room and entering lift lobby via cracks etc. If I comply with this concept, I will exhaust much less than 10ACH e.g. 2-3ACH. In both cases, FCU covers sensible cooling loads.
My question is....Shall I comply with 95% exhaust strategy regardless of recommendations or 10ACH strategy?





RE: Exhaust Strategy for Garbage Room and Corridors
RE: Exhaust Strategy for Garbage Room and Corridors
In this case, because you can't get rid of the smell no matter what you do, I think that pressure control is more important than rule of thumb ACH, but I agree with trashcanman (and who wouldn't given the name and subject) that 2 cfm/sqft is a minimum.
RE: Exhaust Strategy for Garbage Room and Corridors
You should better exhaust the garbage rooms.
RE: Exhaust Strategy for Garbage Room and Corridors
Unfortunately, our project has been canceled at the end of scheme design stage.
I guess it is due to current issues in world economy.