fresh air load calculation
fresh air load calculation
(OP)
hai to all,
I am new to this site and I have one doubt please help me..
Imagine a non-conditioned room, and I am supplying 1000cfm of fresh air at 18 degrre.
I want to know how much heat load will take that fresh air ?
I am new to this site and I have one doubt please help me..
Imagine a non-conditioned room, and I am supplying 1000cfm of fresh air at 18 degrre.
I want to know how much heat load will take that fresh air ?





RE: fresh air load calculation
read some fundamentals.
RE: fresh air load calculation
? How much heat load that fresh air has to be removed?
What dew point do you have to what do you want at what temperature to end up with; as in first reply...?
RE: fresh air load calculation
RE: fresh air load calculation
let me make it more clear. I know it is depended to lot of if's and but's.
I have a kitchen. the total heat load calculated for that room is say 10 ton.
the thermostat set point taken as 24 degree. Now I am supplying 1000 cfm of fresh air @ 18 degree.
I think it much more clear now. I want to know is there is any direct calculation for finding out the load taken by the fresh air?
RE: fresh air load calculation
Basically, you don't have a clue about HVAC and you want us to design you a solution.
RE: fresh air load calculation
q: heat transfer rate, Btu/h
Trt: Room temperature, F
Tst: Supply Air temperature, F
V: Air flow rate, ft3/m
q= 1.085 x V x (Trt - Tst)
Metric form:
q: Watts
V: L/s
Trt, Tst: C
q = 1.2 x V x (Trt - Tst)
Note this calculation is based on sensible heat and it is used for dry bulb temperature while not taking into consideration the latent loads or moisture sources.
RE: fresh air load calculation
Thank you for your valuable information. it is clear now.
RE: fresh air load calculation
For me it is a part of my learning curve. I believe that I will be always junior when it comes studies.
And I prefer continuous learning until my last breath.
RE: fresh air load calculation
There is no bypass to basic learning, which in this case means - psychrometrics.
RE: fresh air load calculation