Rankine cycle with respect to p-v, t diagrams, Mechanical Engineering

Assignment Help:

Rankine cycle with respect to P-V, T diagrams:

The steam having high pressure is expanded to a low pressure within a reciprocating engine or a turbine.

If expansion is ideal (that is one of constant entropy), the cycle is called as Rankine cycle.

However, in actual plant friction takes place in the flow of steam through engine or turbine which    results in expansion with increasing entropy. By applying 1st law to this method:

2094_Rankine cycle with respect to P-V, T diagrams.png 

(c) 3 - 4:The low-pressure wet steam is condensed completely at constant condenser pressure back into saturated water. The latent heat of condensation is rejected to the condenser cooling water which, in turn, rejects this heat to atmosphere. By applying 1st law of the thermodynamics,

1543_Rankine cycle with respect to P-V, T diagram1.png 

(d) 4 - 1:The low pressure saturated water is pumped back up to boiler pressure and it becomes sub saturated. The water then enters again in the boiler and begins a new cycle. By applying the first law:

970_Rankine cycle with respect to P-V, T diagram2.png

However, Win can be neglected with the accuracy and we can assume  h1 = h4.

The thermal efficiency of cycle can be given by:

687_Rankine cycle with respect to P-V, T diagram3.png 
Specific steam consumption can be given by:
622_Rankine cycle with respect to P-V, T diagram4.png


Related Discussions:- Rankine cycle with respect to p-v, t diagrams

Sequencing, jane reed bakes bread and cakes in her home for parties and oth...

jane reed bakes bread and cakes in her home for parties and other affairs

Evaluate the throat diameter of choke, (a) Illustrate why a rich mixture is...

(a) Illustrate why a rich mixture is required for the following (i) idling (ii) sudden acceleration (iii) Maximum power (b) A simple jet carburetor is required to supply 5Kg

Find the tension in each wire, A 54 kg chandelier is suspended 1.5 m below ...

A 54 kg chandelier is suspended 1.5 m below a ceiling by 3 wires, each of which has the similar tension and the similar length of 2.0 m (see the drawing). Find the tension in every

Determine the direction and magnitude of the work, Illustrate throttling pr...

Illustrate throttling process and free expansion process in details? A fluid is confined in a cylinder by a spring loaded frictionless piston so that pressure in the fluid is a

Objectives-computerized scheduling and control manufacturing, Objectives ...

Objectives After studying this section, you should be familiarized about: The typical job shop scheduling problem, Characteristics of computer controlled scheduling,

Control cables and rubber parts, Control Cables: Never bend or distort con...

Control Cables: Never bend or distort control cables. This will lead to stiff operation and premature cable failure. Rubber Parts: Beware of parts containing O-rings or oil s

Shielding gas-helium, Helium Helium (He) is an inert, very light mon...

Helium Helium (He) is an inert, very light monoatomic gas, of atomic weight of 4. It is obtained by separation from natural gas. Helium is refined to a purity of min.  99.99

Wrought al alloys, Wrought Al Alloys This aluminium alloys are acquir...

Wrought Al Alloys This aluminium alloys are acquired by addition of Mn and Mg. The Al-Mn and Al-Mg alloys cannot be heat treated. Al-Mn alloy combines high ductility along wi

Measurement of hardenability, Measurement of Hardenability: Two testi...

Measurement of Hardenability: Two testing techniques have been enhancement to measure the harden-ability of steels. The first, termed as cylinder series test, offers a single

Show leak area preparation, Q. Show Leak Area Preparation? Clearly mark...

Q. Show Leak Area Preparation? Clearly mark the location of the leak on the flange with a permanent marker. Notes: 1. Depressurizing hydrocarbon lines in non-emergency event

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