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Thread: Calcualting Room Pressure
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18-11-2007, 06:15 AM #1
Calcualting Room Pressure
S.No
Area Name
Floor Area
Room Ht
Room Pressure
Equip. Heat Dissipated
Required Cooling Capacity
Room Conditions
Evaporator
Qty(M2)(M)(Pa)(KW)(KW)DB in ºCRH in %
Refrigerant
Soap Manufacturing Area1
R-2217285
11720806
Liquid Packing Area2
R-229245
8320805
Manufacturing Room(Mezzanine)3
R-223309
5820753
Manufacturing Room(Ground)4
R-225944
6120753
Hope it will be a good discussion for our members.
I need the following details.
Production : Soap Plant.
One more Query:
How do we calculate the heat dissipation of a machine/Motor?
For ex.If a compressor motor having 55 KW what is the heat dissipation for that motor in KW or Kcal.
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18-11-2007, 06:18 AM #2
Re: Calcualting Room Pressure
Sorry for the inconvenience.I have attached my details
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18-11-2007, 09:24 AM #3
Re: Calcualting Room Pressure
An air compressor or a refrigeration compressor?
If a refrigeration compressor:
Open or hermetic or semi-hermetic?
Working temperatures?
Refrigerant?
May I ask you 2 questions?
Why you need the dissipation of a compressor?
And why can this be a good discussion? I only see a questionIt's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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18-11-2007, 03:32 PM #4
Re: Calcualting Room Pressure
Your doc highlights "Room Pressure" - there is no way that anyone can answer that question because there are no facts to base any calculations on.
You also have not given any details of the equipment regarding 'heat dissipated'.
How do you expect us to help you?Brian - Newton Abbot, Devon, UK
Retired March 2015
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18-11-2007, 11:05 PM #5
Re: Calcualting Room Pressure
sounds like you are required to fill in a 'room data sheet'
The pressure would be for you to indicate for someone the level of pressurization or perhaps depressurization that is required to be maintained in this rooms.
A room could be pressurized with clean air to keep dirt out. With clean rooms for example you want the clean space highly pressurized, with more pressure than the airlock which would connect it to the 'dirty area'. The air lock would in turn have more pressure than the dirty area. Air would always flow from clean areas to the dirty areas.
The equipment heat would require you to survey how much heat is generated by the various equipment in the rooms.
Once that data sheet was filled in perhaps someone would be designing the AC, based on your info. Sounds like a form you are to give to the designer
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18-11-2007, 11:07 PM #6
Re: Calcualting Room Pressure
references such as AHSRAE's hanbdbook of fundamentals would give yuou a guide on hw much heat is rejected by motors etc.
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