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

Hydrostatic pressure, can a swimming pool that is full be cracked or lifted...

can a swimming pool that is full be cracked or lifted by hydrostatic pressure?

Find out the number of revolution, Find out the number of revolution: ...

Find out the number of revolution: A flywheel of mass 20 kg and radius 100 mm is made to rotate at 600 RPM. Determine the KE of the flywheel. If the frictional couple at its b

Thermodynamics essay, Write an essay on air, water and soil-based heat pump...

Write an essay on air, water and soil-based heat pumps. Discuss the advantages and the disadvantages of each system. For each system identify the conditions under which that system

Hartung governer., #quesThe spring controlled governor of the “Hartung” typ...

#quesThe spring controlled governor of the “Hartung” type has two rotating masses each of 3.5 kg and the limits of their radius of rotation are 100 mm and 125 mm. The each mass is

Degree of super heat - thermodynamics, Degre e of Super Heat: It is d...

Degre e of Super Heat: It is difference between the temperature of superheated steam and saturation temperature resultant to the given pressure. So, the degree of superhea

Varignon theorem - mechanics, Varignon theorem: State Varignon's theo...

Varignon theorem: State Varignon's theorem. How it helps in determining of the moments? In which type of condition is it used? Sol.: Varignon's theorem also called Law

Classification of welding based on mode of energy transfer , Classification...

Classification of welding Based on Mode of Energy Transfer Energy is converted from one form to another. Any form of energy can be converted to heat energy, which can be used f

Evaluate the angle of heel, A motor cycle with rider, weight of 250 Kg., th...

A motor cycle with rider, weight of 250 Kg., the centre of Gravity of the machine and rider combined being 60 cm above from ground level when the machine is standing upright. Each

Adhesives, Adhesives Adhesives are a substance able of holding materia...

Adhesives Adhesives are a substance able of holding materials together. A joint is formed among two solids is called adherends with a thin layer of adhesive among them. Mainly

Illustrate different methods of merit rating, a) What are essential needs o...

a) What are essential needs of a job evaluation plan. Illustrate the point plan method b) Describe factor comparison method of job evaluation. a) What are basic objectives an

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