Determine a the air exit velocity to produce 5 lbf b the

Assignment Help Mechanical Engineering

Reference no: EM13638792

An engineering student considers using a fan as a levitation demonstation. She plans to face the box-enclosed fan
so the air blast is directed face down through a 3 ft diameter blade span area. The system weighs 5 lbf, and the
student will secure the system from rotating. By increasing the power to the fan, she plans to increase the blade rpm and air exit velocity until the exhaust provides sufficient upward force to cause the box fan to hover in the air. Determine (a) the air exit velocity to produce 5 lbf (b) the volumetric flow rate needed and (c) the minimum mechanical power that must be supplied to the airstream. Take the air density to be .078 lbm/ft^3.

Reference no: EM13638792

Questions Cloud

Calculate the collection efficiency for this device for a : a particulate control device has an efficiency which is a function of particle size as follows effdp 1 - exp- st

Use a sketch to show the change that occurs as a sulfur : use a sketch to show the change that occurs as a sulfur atom becomes a sulfide ion. describe how the distance from the

Two 10 kg masses are 20 m apart on a frictionless table : two 1.0 kg masses are 2.0 m apart on a frictionless table. each has 1.0 uc of charge.1. what is the magnitude of the

Will the reaction be spontaneous when the partial pressures : for the decomposition of 2-propanol to form propanone andhydrogench32choh g lt---gt ch32co g h2gthe equilibrium

Determine a the air exit velocity to produce 5 lbf b the : an engineering student considers using a fan as a levitation demonstation. she plans to face the box-enclosed fanso the

What type of sampling is being employed if the country is : what type of sampling is being employed if the country is divided into economic classes and a sample is chosen from

A 300 w lightbulb is 190 percent efficient this means that : a 30.0 w lightbulb is 19.0 percent efficient. this means that 19.0 percent of the electric energy is converted to light

According to the uw madison 2003-2004 factbook 11488 of the : according to the uw madison 2003-2004 factbook 11488 of the 24890 students enrolled at uw madison during that year were

Determine the magnitude of the electric field along the : a rod 22.3cm long is uniformly charges and has a total charge of -26.2 microc.determine the magnitude of the electric

User Account

All Pages