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Generator room ventilation 1

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Saikot Mahmud

Mechanical
Dec 24, 2019
6
I Have 6 generators of 8 MW capacity in a room of power house.It's a huge problem for us to maintain temperature as the room temperature crosses about 65 degree Celsius.As It's a south asian country, the radiant heat energy is too much for us to handle.The room has four louvers on the rear side of the room but in summer that's not enough . What else We can do?
 
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What is the source of the radiant heat transfer?
 
Add some chillers.

Add some shade to reduce solar gain.

Blow lots of air through the room.

You provide virtually no information so you won't get much of a response.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
 
At first sorry for the shortage of information
The volume of the room is L=132 ft B=66 ft H=20ft
There are 6 generator of 1.5 MW capacity of each one, total 8 MW capacity.In summer due to high temperature outside, The generator room temperature is also increasing a lot.As I live in South Asian country, the sun radiant heat is much for us to control.
So As I said earlier ,the outside the generator room temperature is almost 132 degree fahrenheit ( 50 degree celsius) and the generator room temperature is 149 degree fahrenheit or 65 degree celsius
 
This looks very much like a request for free Engineering.
Hire an Engineer familiar with ventilation
 
See my earlier post.

I'm not sure what you're expecting?

A miracle device which cools air for no energy input?

Why was this not thought about when it was built?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
 
Are the generator radiators ducted outside? if not, that is probably step #1. Pay close attention to the external static pressure limitation of the generators.

Otherwise, you will never "cool" the room without a refrigeration device. Short of that, the best you can do is ventilate the space. Simple sensible heat calculation of the acceptable indoor temp, maximum outside air temp, and heat rejection of the equipment (which may be hard to quantify). That will tell you how many CFM you need, but it may very well be more than can practically be delivered. The room will be a wind tunnel.

By the way, you have a 132 degree ambient temperature at your location??? That is probably high than the manufacturer allows, so ventilation alone will not be sufficient.
 
Get the jacket cooling heat exchangers outside.

Get the exhaust mufflers above the roof. Insulate the exhaust piping that is inside.

More louvers on more walls.

Big extraction fans at the roof.

But with 50C outdoor ambient it will still be hot inside.
 
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