Rankine cycle - thermodynamics, Mechanical Engineering

Assignment Help:

Rankine cycle - Thermodynamics:

The major problems of Carnot cycle is compressing very wet steam mixture from the condenser pressure up to boiler pressure. The trouble can be avoided by condensing steam in the condenser and then compressing the water in a comparatively small feed pump. The effect of modification is to make the cycle practical one. Further, far less work is required to pump liquid than to compress vapour and therefore this modification has the result that the feed pump's work is one or two per cent only of the work developed by turbine. We can thus neglect this term in our cycle analysis.

 

1566_Rankine cycle.png

The idealized cycle for simple steam power plant taking into account above modification is called as Rankine cycle shown in the figure given above. It is made from four practical processes:

2309_Rankine cycle1.png

(a) 1 - 2 :Heat is added to increase temperature of the high-pressure water up to its saturation value (process 1 to A). The water is evaporated at constant temperature and pressure (process A to 2). Both processes occur within boiler, but not all the heat supplied is at the maximum cycle temperature. Therefore, the mean temperature at which heat is supplied is lower than the equivalent Carnot cycle. Therefore, the basic steam cycle thermal efficiency is lower inherently. Applying first law of thermodynamics to this process.


Related Discussions:- Rankine cycle - thermodynamics

The many uses of iron, 5000 word assignment 25/10/2018 due date Research P...

5000 word assignment 25/10/2018 due date Research Project for ENGR8752 Engineering Physics and Material write down about the iron history and all about iron my detail yesh patel

Aluminium cast alloys, Aluminium Cast Alloys: Aluminium alloys the ca...

Aluminium Cast Alloys: Aluminium alloys the cast through any one of the given processes. Sand Casting is the easiest and most versatile process minute castings, complex ca

Stress strain curves for the brittle materials, Stress strain curves for th...

Stress strain curves for the brittle materials: Stress strain curves for the brittle materials : Materials which show small elongation before they fracture are called as br

Fracton steam, calculate the dryness fractin of steam which has 1.5kg of wa...

calculate the dryness fractin of steam which has 1.5kg of water in suspension with 50kg of steam

GOVERNORS, Explain Wilson HArtnell Governor

Explain Wilson HArtnell Governor

Hermite curve, A hermite curve passes through the points (1,0), (0.866, 0.5...

A hermite curve passes through the points (1,0), (0.866, 0.5), (0.5, 0.866), (0,1) which are parameterized at u=0,0.25,0.75,1 respectively. determine geometric coefficient of the c

Explain the study of readial drilling machine with spindle, Explain the stu...

Explain the study of readial Drilling machine with spindle The objective of this study is to study of readial Drilling machine with spindle. As in Radial Drilling machine th

Explain objectives of radial drill machine, Explain Objectives of Radial dr...

Explain Objectives of Radial drill machine There are many objectives such like, 1.   With the help of angle drill machine, an angle hole can be produced at any angle.  2.

Explain general phase of radial drilling machine, General Phase of Radial D...

General Phase of Radial Drilling Machine Steps- 1. Prepare a strong foundation for the value study. In radial drilling machine hole can not be produce in any angle.

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