Flow work and flow energy - thermodynamics, Mechanical Engineering

Flow Work and Flow Energy - thermodynamics:

Flow Work: The flow work is energy needed to move the working substance against its pressure

It is called as flow or displacement energy.

It working substance with pressure p, flow  through area A, (m2) and moves throughout distance x. (m) work required to move working substance.

Flow work = force X distance = (P.A).x = PV Joule

 

2130_Flow Work and Flow Energy.png

Flow Energy: Flow work analysis is based on consideration that there is no change in PE, KE, U. But if these energies are considered in flow process, the flow energy per unit mass can be expressed as

E = F.W + KE + PE + I.E.

Eflow  =  PV + V2/2 + gZ + U

= (PV + U) + V2/2  + gZ

E = h + V2/2 + gZ

Posted Date: 10/15/2012 2:39:35 AM | Location : United States







Related Discussions:- Flow work and flow energy - thermodynamics, Assignment Help, Ask Question on Flow work and flow energy - thermodynamics, Get Answer, Expert's Help, Flow work and flow energy - thermodynamics Discussions

Write discussion on Flow work and flow energy - thermodynamics
Your posts are moderated
Related Questions
a) Mention typical application of instrument system with illustratation. b) Write down about the functional element of instrument system with examples. c) Define the key term

Argon Argon is approximately one and one third times as heavy as air and ten times heavier than helium. Argon, after leaving the torch nozzle, forms a blanket over the weld

(Buoyancy of a floating body) Ice has a density 91.7% of liquid water. For an ice cube (1 cm per side), a) what fraction of the volume floats above the water surface at sta



Verband der Automobilindustries Flachenschnittstelle (VDAFS) This interface was developed by the Association of the German Automobile Industry for the transfer of 3-D curves an

(a) Describe the terms "Fluid jet" and "Vane" in Fluid Machine. (b) What is impulse - momentum principal in analysis and design of turbo machines.

Describe the following terms:- a) Gyroscope b) Crank-pin effort c) Piston Effort d) Crank effort e) Thrust on crank shaft bearings.  f) Brake and Dynamometer g

Q.   Why are magnetic field system employed in practical electromechanical energy conversion devices rather than electric field systems? Ans. In case of magnetic field sys

Hinged Support: Hinged (Pin) Support: At hinged end, beam cannot move in any direction support will not develop any resisting moment, but it can develop reaction in any of t