How can we measure the static pressure of the fan?
What is another way we could go about doing this project. Basically, we have to make the fan do more work using the same power or the same work using less power.
Thanks
We are trying to improve the efficiency of a fan for an engineering project. However, we first need to figure out what the efficiency of the fan is now.
Since we know how many watts the fans motor is using at each setting, we figured we could just find how much power is in the air the fan is...
so did a little more research and found that cvt on the small scale are too heavy and ineffecient. so now our options become:
- some create/ buy an automatic transmission
-make/buy a manual transmission
-choose a single gear ratio that will get us the best average
and ideas on most efficient...
i believe funneling the air is against the rules.
but couldn't we just put a big gear on the fan and a really small one on the motor? therefore the fan doesn't have to spin very fast to get the generator going good.
But I am still set on making a cvt, or at least trying. its probably not...
what exactly am i trying to find by using the drill. I get what youre saying, but what's the point? I don't believe the multimeter has a frequency counter, its a pretty cheap one.
THe website that sells the motor/generator has a graph and table for voltage output and such at certain rpms. i...
oh ok it makes more sense now. I know you can't get more power out than you started with which is why it was confusing me. i have the generator and a multimeter, but nothing for rpm. honestly I am not even sure what youd use for that.
It is 30 seconds to align and test it, and then 30 seconds...
so basically we're going to lose more power than we would appear to increase it. makes sense i think.
Just picking some very random numbers for conversation sake, if we had say 1 volt and 1 amp, and we stepped down the voltage to .5 volts, we would have 2 amps. in theory we would start off...
could we use a bridge rectifier to convert the voltage to ac before the transformer. Would this not give us a greater power output? I think I am missing something crucial because it doesn't quite make sense.
I know we want our motor spinning as fast as possible for the most power but we're just...
we need to make a wind turbine using this motor http://www.kidwind.org/xcart/product.php?productid=15&cat=79&page=1"
the rules can be found here: http://www.mrmaloney.com/nssl/events/2009-2010/0910_4-jan-wind.pdf"
We were thinking, since they will be using P=(I^2)R instead of P=IV to...
Homework Statement
I have to make something that will roll down an incline as slow as possible. It needs to have a uniform radius of 0-.5m and have a mass between .25kg and .5kg. The ramp it needs to go down is a pine board 12' long, with a starting height of 6", and the ramp is 7.5" wide. I...