Boosting Incoming Gas Supply
Boosting Incoming Gas Supply
(OP)
I need to boost an incoming natural gas supply of 22mb to 120mb. The process that it supplies, aluminium melting furnaces, are always cycling so the flow rate is very dynamic, from very low flow (10000 cfh) to max (90000 cfh). I have installed a booster fan (as per IGE/UP/2) but I am experiencing high temp at the booster at low flow. I need an alternative solution or any help is appreciated. A by-pass over the boosters to allow flow at min demand does not work, i've tried.





RE: Boosting Incoming Gas Supply
Here are different solutions:
1. Change to inlet vane control. Doubtful that this will enable low enough turndown.
2. Install two fans in parallel. Run one or two fans depending on capacity with inlet vane control.
3. A two speed motor combined with inlet vanes.
4. A variable speed drive would be the cadillac solution.
Reference Fan Engineering published by Howden Buffalo chapter 15 "Fan Control". This discusses the plusses and minuses of each control.
RE: Boosting Incoming Gas Supply
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RE: Boosting Incoming Gas Supply