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

Composite Materials, One can increase the toughness of a ceramic material b...

One can increase the toughness of a ceramic material by introducing fibers to the structure of the ceramic and create a ceramic-matrix composite. However, unlike other fiber-reinfo

Define inversion of a mechanism, Define Inversion of a mechanism ? Illustra...

Define Inversion of a mechanism ? Illustrate in detail about any three of the Inversions of the single slider crank chain Mechanism. (a) What do you understand by Degree of Free

Hooks law, State Hook's law: Sol.: It states that when material is l...

State Hook's law: Sol.: It states that when material is loaded within the elastic limit, the stress is proportional to strain produced by the stress. This means that the rat

Clutch-free pedal play -factors in clutch design , Clutch-free Pedal Play :...

Clutch-free Pedal Play : To reduce effective clamping load on the carbon thrust bearing and wear thereof, sufficient clutch free pedal play must be provided in the clutch.

Rapid prototyping, Give justification toward the development of rapid proto...

Give justification toward the development of rapid prototyping?

Energy balance for a vapor stream, Write down the energy balance for a vapo...

Write down the energy balance for a vapor stream going through a throttling valve (a valve that just reduces the pressure).  State your assumptions. Suppose a nonvolatile materi

Determine the stress in steel rod, A steel rod of 3 cm diameters and 5 m lo...

A steel rod of 3 cm diameters and 5 m long is connected to two grips and the rod is maintained pull exerted when the temperature falls to 30 o C if (a) The ends do not yield, an

Explain working of steam drum, Q.Explain working of Steam Drum? Total so...

Q.Explain working of Steam Drum? Total solids concentration in the steam at steam manifold outlet shall not exceed 0.5 ppm during steady operation at MCR.  Fabricator must indic

CIM, CIM in architecture?

CIM in architecture?

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