Mass flow rate - thermodynamics, Mechanical Engineering

Assignment Help:

Mass Flow Rate (m ):

In absence of any mass getting stored system we can write;
Mass flow rate at inlet = Mass flow rate at outlet

That is, mf1 = mf2

as mf = density X volume flow rate = density X Area X velocity = .A.V

1.A1.V1 = 2.A2.V2

or, mf = A1.V1/ 1  = A2.V2/ ν2; Where:   ν1, ν2  = specific volume

Q. 13: Derive steady flow energy equation                                                                                          

 Sol:  Since the steady flow process is that in which the condition of fluid flow within a control volume do not vary with time, that is the mass flow rate, volume, pressure, work and rate of heat transfer are not the function of time.

That is, for steady flow

(dm/dt)entrance  = (dm/dt)exit ;

that is, dm/dt = constant

dP/dt = dV/dt = d  /dt = dEchemical = 0

 


Related Discussions:- Mass flow rate - thermodynamics

Find out the final extension and the work done, Find out the final extensio...

Find out the final extension and the work done: Problem:  (i) A spring of stiffness 4 N/cm of extension is extended steadily yet the force of 20 N is reached. Find out th

The radius dimension command, The Radius Dimension Command The Radius c...

The Radius Dimension Command The Radius command is quite identical to the Diameter command except that the dimension measurements a radius rather than a dimension and the resul

Hydrostatic law for incompressible and compressible fluid, Illustrate Newto...

Illustrate Newton's law of viscosity. Explain the importance of viscosity in fluid motion. Describe the effects of temperature on viscosity of water and that of air? Discuss hyd

Determine magnitude and direction of the resultant force, Determine magnitu...

Determine magnitude and direction of the resultant force: A system of forces is acting at the corner of a rectangular block as shown in the figure. Determine magnitude and di

calculate the arc-belt length-distance and ratio , A powered metal-working...

A powered metal-working crank press (a generic press is shown at the end) has been designed to be capable of punching blanks from mild steel sheet up to 3 mm thick. 1. the ultim

Shielding gases, SHIELDING GASES Shielding gas is directed by the to...

SHIELDING GASES Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.  Argon

Theory of machines, What'' is balancing and vibration in machines Need of ...

What'' is balancing and vibration in machines Need of balancing? Causes of vibration and their harmful effects and remedies?

Write Your Message!

Captcha
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