Highest possible average flow velocity in the duct

Assignment Help Mechanical Engineering
Reference no: EM13706615

A central heating system has a 60 W fan used to circulate air through the building ducts. A previous flow analysis showed that the fan needs to raise the air pressure by 50 Pa to maintain proper flow through the ducts. The fan is located in a horizontal section of circular duct whose diameter is 30 cm at both the inlet and outlet. Determine the highest possible average flow velocity in the duct.

Reference no: EM13706615

Questions Cloud

Assume that the average life expectancy of a beagle : Assume that the average life expectancy of a Beagle is 13.3 years, and that 60% of Beagles lives to 12 to 15 years, and that their age follows normal distribution. Calculate the standard deviation of the distribution.
Turbine is proportional to the circular area swept : The average wind speed on the north Texas plains around Amarillo is approximately 6 m/s. An efficient wind turbine can convert 35% of the kinetic energy of the air (wind) into electrical energy at optimum conditions. If a turbine has blades 25 m in l..
Challenges facing all-electric vehicle transportation : One of the challenges facing all-electric vehicle transportation is the electrical infrastructure need to support rapid recharging of electric cars. Residential power circuits commonly supply alternating current (A/C) with maximum residential voltage..
Compression-ignition engine operates on ideal diesel cycle : A six-cylinder, four-stroke, 4.5-L compression-ignition engine operates on the ideal diesel cycle with a compression ratio of 17. The air is at 95 kPa and 55oC at the beginning of the compression process and the engine speed is 2000 rpm. The engine u..
Highest possible average flow velocity in the duct : A central heating system has a 60 W fan used to circulate air through the building ducts. A previous flow analysis showed that the fan needs to raise the air pressure by 50 Pa to maintain proper flow through the ducts. The fan is located in a horizon..
Piston-cylinder device-determine the final energy of system : A vertically mounted piston-cylinder device contains 1.5 kg of water and is being heated over a coal burning stove. During the process, 75 kJ of heat is transferred to the water and heat losses from the side walls amount to 9 kJ.
Carbon diffuses in iron via an interstitial mechanism : Carbon diffuses in iron via an interstitial mechanism—for FCC iron from one octahedral site to an adjacent one. In Section 4.3 (Figure 4.3a), we note that two general sets of point coordinates for this site are 0 ½ 1 and ½ ½ ½ . Specify the family of..
Determine internal energy change as saturated liquid steam : Determine the internal energy change as saturated liquid steam at 600F goes to a two phase mixture of quality 0.40 at 600F. Saturated vapor water at 130?C undergoes an isometric process to 0.4 MPa. Determine the final fluid phase and the enthalpy cha..
Determine the final temperature of the ammonia : Ammonia vapor in a piston-cylinder assembly undergoes a constant-pressure process from saturated vapor at 10 bars. The work is +16.5kJ/kg. Changes in kinetic and potential energy are negligible. Determine (a) the final temperature of the ammonia in d..

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  A composite wall is to be constructed of 14 inch stainless

a composite wall is to be constructed of 14 inch stainless steel k10.5 buthr-ft-degrees f 3.0 inches of corkboard

  The wood absorbs 90 of the late afternoon solar radiation

a 1 foot square 14 inch thick piece of oak floats in a large pool of water. the convective heat transfer coefficients

  Find the heat flux through the wall in si units find the

the inside surface of an 8-in-thick common brick wall is maintained at 100 f. thermal conductivity of th brick is 1.0

  Calculate the actual belt speed and the actual center

a belt drive is desire to couple the motor with a mixer for processing corn syrup. the 10-hp electric motor is rated at

  Where a is a scaling constant and v is the relative speed

wind drag can be approximated as being quadratic in speedfd av2where a is a scaling constant and v is the relative

  Determine the mass flow rate through the boiler needed for

a steam power plant implements an ideal reheat rankine cycle. steam enters the inlet of the high-pressure turbine at 8

  The air surrounding the piston-cylinder is at 147 psi what

one cubic foot 1 ft3 of air is contained in a piston - cylinder arrangement. the axis of the cylinder is oriented in

  Make a schematic drawing of amorphous si glass with 10 h

if silcion is cooled quickly it will form glass instead of crystallyzingone way to do this is to deposit si atoms onto

  Carbon dioxide at 20 degrees c and a pressure of 575 kpa

1 water flows through a 45 ft pipe with a 0.5 in diameter at a flow rate of 5 gpm. what facrtion of this pipe can be

  Mass of oxygen gas in a container with a volume

What is the mass of oxygen gas in a container with a volume of 25 ft3, at a pressure of 14.7 psia and a temperature of 75oF?

  Device creates or destroys energy or destroys entropy

The Acme Company claims to have designed an adiabatic turbine that will produce 126.2 BTU per pound of steam. The operating conditions are labeled on the diagram below. Is this company's claim valid or is this a perpetual motion machine? Hint: Determ..

  Find the equation of motion and the natural frequency

Three springs and a mass are attached to a rigid, weightless bar PQ. Find the equation of motion and the natural frequency of vibration of the system.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd