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
We seek to test if an auto-associative network is capable of recalling certain memories. Here you will test if patterns can be completed or recovered. You are given a single patter

Hazardous Areas are formally ranked as being a designated hazardous area using the relevant regional or country standards that are directly applicable to the plant design under con

what is viscosity?

steady state amplitude

FRICTION: you have learnt laws of friction and problems involving dry friction. The relative sliding motion of one body on another body is resisted by forces called as frictio

a) A pair of 20 degree full depth involute spur gears having 30 and 50 teeth respectively of module 4mm are in mesh. The smaller gear rotates at 1000 rpm. Determine- 1) Contact

Free body diagram: Sol.: In a free body diagram, the body is considered by itself and also the effect of the surroundings on the body is shown by forces and moments. Free bod

Problem specification 5 kg of air is contained in a piston-cylinder device, initially at a pressure of 2MPa and a specific volume of 0.08m3/kg. The air then expands, as an ideal ga

A wooden cylinder (specific gravity = 0.6) of circular cross - section having length L and diameter D floats in water. Find the maximum permissible (L/D) ratio so that the cylinder

What are the Safety consideration in under batteries and gear ? Ans: Alternator:- 1. Suspension pin with cotter pin and anti- rotation plate 2. Alternator safety cha