Find the octave band sound power level

Reference no: EM13717431

Compute all parts of given problem:

Problem: A forward - curve centrifugal fan has 32 blades and rotates at 3000 rpm. It delivers 5000 cfm of air with a static pressure of 5 in of water.

Part A: Find the blade passing frequency and its first 2 harmonics?

Part B: Find the octave band sound power level?

Part C: Find the overall sound power level?

Please show all work and steps to determine the octave band sound power level.

Reference no: EM13717431

Questions Cloud

What is the coefficient of kinetic friction on the incline : A 3 kg block with an initial velocity of 4.2 slides 25° incline. If the block slides 1.5 m up the incline before coming to rest, What is the coefficient of kinetic friction on the incline

Appropriate forms of the energy balance and entropy balances : Superheated steam at 600 C and 4000 kPa is fed into a turbo expander at a rate of 10 kg/s. The steam expands and leaves the expander at 500 kPa pressure and 300 C. It is known that there is a heat loss of 50 kJ/sec. This heat loss can be assumed to t..

What would be the maximum static charge density : Air is capable of supporting an electric field of about 3 x 106 N/C before a spark occurs. What would be the maximum static charge density you could put onto that cable if air separated the conductors

Dell is selling 30,000 units in europe at an average price : Dell is selling 30,000 units in Europe at an average price of euro1500 per unit. Both the spot and forward exchange rate are $1.20/euro. The cost of each unit in dollars is $1300 per unit. The elasticity of demand for dell computers in Europe ..

Find the octave band sound power level : A forward - curve centrifugal fan has 32 blades and rotates at 3000 rpm. It delivers 5000 cfm of air with a static pressure of 5 in of water. Find the octave band sound power level

Calculate the power generated by the turbine in mw : The mass flow rate through a steam turbine operating under steady conditions is 100 kg/s. Steam enters the turbine at 12 MPa and 400oC. A mixture of vapour and liquid water exits the turbine at 10 kPa. At the exit state 93% of the mass of the water i..

Evaluate the average power developed by the engine : A 1.50 x 103-kg car starts from rest and accelerates uniformly to 17.3 m/s in 12.0 s. Find the average power developed by the engine

Find the initial total mechanical energy of the projectile : A 56.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.28 x 102 m/s from the top of a cliff 138 m above level ground, find the initial total mechanical energy of the projectile

Determine the temperature of propane at the end of process : A quantity of propane is contained in a piston-cylinder assembly. This working fluid undergoes a process starting from an initial state of 2.0 MPa and 60oC. At the end of the process the pressure of the propane is 1.0 MPa and the specific entropy is ..

User Account

All Pages