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

Control , hey i really need someone to help doing my control course work as...

hey i really need someone to help doing my control course work asap cuse it is due sunday it is about Control of water level in a nonlinear ‘V’ shaped tank

Explain hard or fixed automation, Explain Hard or Fixed Automation Mech...

Explain Hard or Fixed Automation Mechanical controls consist of numbers of mechanism that create the required relative motion to complete an activity. These mechanisms include:

What do you mean by flares and vents, Q. What do you mean by Flares and Ven...

Q. What do you mean by Flares and Vents? A vent is a potential gas fuel source and a potential liquid fuel source due to carry-over from the vent. This is also true for a flare

What do you mean by issued for review, Q. What do you mean by Issued for Re...

Q. What do you mean by Issued for Review? This drawing issue of P&IDs is a draft and is intended for the Colt-internal review process involving affected disciplines. This draw

Thormodynamics, define thormodynamics and its laws

define thormodynamics and its laws

Illustrate the euler-poincare formula, The Euler-Poincare Formula  The ...

The Euler-Poincare Formula  The Euler-Poincaré formula describes the relationship of the number of vertices, the number of edges and the number of faces of a manifold. It has b

Cold pierce, Material S48C thickness 4mm pierce hole daimeter 4 mm can do o...

Material S48C thickness 4mm pierce hole daimeter 4 mm can do or not? please advise

Design the pavement, As spring approaches, your design rm has been tasked ...

As spring approaches, your design rm has been tasked with designing a two-lane highway in rural Wyoming. The highway descends a hill, crosses a river, and must shift to a parallel

Cover left crank case and check shifter drum, Open cover left crank case an...

Open cover left crank case and check shifter drum bolt and washer: Check shifter drum bolt torque and washer direction and avail ability.

Design the keys - shear keys, Design the keys - Shear Keys: A solid ci...

Design the keys - Shear Keys: A solid circular shaft is to transmit 200 kN at 200 rpm. If the maximum shear stress is not to exceed 80 n/mm 2 design the shaft. Design the key

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