Exhaust Flue Pipe/Duct Sizing

There are many ways to find the answer online, piping calculators. If you want to know how concept, i guess you would need to steal the fluid book somewhere. I hope this help

-R

Comparing the engine exhaust pipe diameter and the chiller intake gives you a starting point. If it were just 1 engine, 1 chiller I'd use the bigger of the 2. If it's 3 engines feeding 1 chiller, it's slightly more complcated, but you can still compare pipe areas.

Cheers............Codey

Mr.Mirza, the Chiller Manufacturer gives his drawings which not only indicates sizes/dimensions but also location of diverting motorized valves and P & I Drawings of complete system. Suggest you get these from your Chiller suppliers.Any excess pressure drop due wrong sizing , both the generator & chiller manufacturers will put blame on you.Suggest you call engineers from both suppliers to discuss this.

You have to follow Mr. Ducon's suggestion. However to understand the theory of duct design you can refer any air conditioning text books .

Good morning Guest. If each DGS emits 23,410 cfm, the total for all 3 would be 70,230 cfm, not 116,952 cfm.

Actually that is 38984cfm mass flow @ density of 0.5 kg/m3 at 450 deg C at the outlet of DG for 19492 kg/hr weight, so for 3 DGS 3*38984 = 116952 CFM 7 NOT 70230 CFM. The 23,410 cfm is typo error.Thanks for that.

I have wanted to do things like this but never had the money.

One consideration I have always thought prudent would be to monitor the exhaust gas back-pressure as changes are made.

By using inducer fans and pressurizing the exhaust, or exhaust fans and creating a negative pressure, I would think it wise to maintain the same back-pressure as the manufacturer sent the machine out the door with.

Coldspot you are scareing Mirza