Increasing Air flow
Increasing Air flow
(OP)
Sorry if this is the wrong forum for this question.
We have one electrical dryer (oven) which has a centrifucal fan to recirculate inside air. I dont have the fan´s curve and I need to increase the air flow inside the dryer
I can increase fan rpm by simply changing it´s pulley.
Motor is 5,5kW
FLC= 12 A
Motor current with the actual pulley configuration is only 6 A so I have "room" to increase load on the motor
Question: Increasing fan rpm will increase air flow?
Any thoughts?
We have one electrical dryer (oven) which has a centrifucal fan to recirculate inside air. I dont have the fan´s curve and I need to increase the air flow inside the dryer
I can increase fan rpm by simply changing it´s pulley.
Motor is 5,5kW
FLC= 12 A
Motor current with the actual pulley configuration is only 6 A so I have "room" to increase load on the motor
Question: Increasing fan rpm will increase air flow?
Any thoughts?





RE: Increasing Air flow
RE: Increasing Air flow
RE: Increasing Air flow
Product: Stick electrodes
I am looking to achieve more air turbulence
RE: Increasing Air flow
the rpm is proportional to the flow
and
the static pressure is proportional to square flow
and
power is proportional to cubic flow
so, in you case the current (witch proportional to power)is 6 A and the max. current is 12 A
then simply theoretically: the max. available flow rate is about 1.25 times your flow rate now
RE: Increasing Air flow
RE: Increasing Air flow
i don't see how more flow itself will guarantee more uniformity. with cold air you can always have issue of air stream drop if velocity is too low, but it's not the case with warm/hot air.
RE: Increasing Air flow
RE: Increasing Air flow
Yes. first thing I did was improve the air distribiution. I installed bufflers with good results.
RE: Increasing Air flow
RE: Increasing Air flow
can you exlain more? "with cold air you can always have issue of air stream drop if velocity is too low, but it's not the case with warm/hot air"
I dont understand
RE: Increasing Air flow
RE: Increasing Air flow
we see now how electrodes are laying, but we don't see how air distribution elements look like. anyhow, increasing flow would rather disturb uniform distribution than improve it. that's only general statement, of course.
your original question is answered by others, i was just suspicious about your intentions and now i'm little more confident that you are not going in right direction.
i will switch back to my sausage experience
RE: Increasing Air flow
RE: Increasing Air flow
Left side is the same