- #1
physicsdude17
- 11
- 0
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 moving using P=1/2(rho)A(v^3), however this didn't work(maybe we're just all really bad at math?). It could be because we tried to calculate velocity based on cfm.
What is the best way for us to calculate the efficiency of the fan? We know how much power the motor is using and how many cfm of air it is moving. Thank you
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 moving using P=1/2(rho)A(v^3), however this didn't work(maybe we're just all really bad at math?). It could be because we tried to calculate velocity based on cfm.
What is the best way for us to calculate the efficiency of the fan? We know how much power the motor is using and how many cfm of air it is moving. Thank you