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Old 4th May 2008, 11:06 PM
harold_tr
CE - Newbie
 
Join Date: 5th July 2007
I'm a Crazy Mechanical Engineer
Posts: 5
Default What about volumetric loss in blowers and fans at high altitudes

Hi crazy people!

It's well know that at high altitude (> 1000 masl) there's a volumetric loss in blowers and fans. (usually air)

And I work at 3800 m.a.s.l. in a Cement Plant.


So I have a doubt:

- Does a blower or fan produce the same amount of VOLUME at 3800 m.a.s.l. than at Standard conditions (20ºC, 1 atm, 0 m.a.s.l., ...), but there's less amount of MASS (i.e. there's < AIR DENSITY) ?

or

- Does a blower or fan produce less amount of VOLUME at 3800 m.a.s.l. than at Standard conditions (20ºC, 1 atm, 0 m.a.s.l., ...) , and also less amount of MASS (i.e. also there's < DENSITY) ?

* And moreover there's less OXIGEN in the AIR (<23%) at high altitudes ...

Could you please recommend some literature about this topic ? , I like to understand about blowers and fans, and also about combustion at high altitudes.

Thanks for your help

HAROLD

Pd.
How does a blower, fan, combustion engine change with altitude?
Just for comparison a alternative mechanism and roots blower, and centrifugal fan. And on the other hand Internal combustion engines (diesel or otto cycle)
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