Heat Remove by Ventilation.

[RMERMP]

Good day! i have a situation that seems very easy for you guys. how can i reduce ambient temperature inside a room using ventilation system alone. For example, my target ambient temperature drop is (-5 degrees Celsius) in a closed room using outside air.

Example data:
Outside air: 40 degrees Celsius
Inside air (target ambient temperature): 35 degrees Celsius.
(using ventilation only)

BTU/HR = 1.085 x CFM x (Delta T)- i thinking of using this formula but BTU/HR is missing.

The only source of heat i considered is the heat from the roof. can anyone share a formula for the calculation of heat transfer for roofs? thanks.

 

[willard3]

Thermodynamics/heat transfer is the kind of thing you will have to learn in class.

 

[SAK9]

Quite possible if you have a block of ice in front of the fan!

 

[urgross]

If you can cool an envelope to 35* C using 40* C, you have a brilliant career ahead of you.

 

[LittleInch]

Re-read your OP please and come up with an example which is actually physically possible.....

Outside air 40C
Inside air 35C

No artificial cooling / evaporative cooling = no cooling.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[RandomUserName]

As everyone else has said:

You cannot make a room colder using warmer air.

 

[IRstuff]

I suggest you read:

https://en.wikipedia.org/wiki/Newton's_law_of_cooling

TTFN
I can do absolutely anything. I'm an expert!
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