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 pelton wheel works at the foot of a dam because of which the head available at the nozzle is 400m. The nozzle diameter is 160mm and the coefficient of velocity is 0.98. The diame

Armature core and armature winding  Armature is the rotating part of the machine. It is cylindrical in shape with slots on its outer periphery. It houses the armature conducto

Determine Maximum fibre stress: A beam of rectangular section of 80 mm to 120 mm carries a uniformly distributed load of 40 kN/m over a span of 2 m an axial compressive force

Find the value of force to move a system: Th e system of particles shown in the figure given below is initially at rest. Find the value of force F which should be applied so

Dry Saturated Steam - thermodynamics: A dry saturated steam is single phase medium. It does not have any water particle. It can be obtained on complete evaporation of water at

Evaluate mechanical work in different steady flow process: Work done by steady flow process   and work done in non flow process,   1. Constant Volume Process; W 1-2 = V

Q. What is Shatter test? Shatter test: This test is measure of toughness of the moulding sand. It indicates the capacity of the moulding sand to with stand rough handling dur

Derivation of formula of thermal stress

Third Service and Fourth Service Prepare a list and explain the mandatory checks to be carried out during third and fourth service of a motorcycle.

Kineti c (Dynamic) Friction: When applied force exceeds limiting friction the body starts moving over the other body and the friction of resistance experienced by the body a