Compare rankine cycle with carnot cycle - thermodynamics, Mechanical Engineering

Compare Rankine cycle with Carnot cycle:

Sol.: Rankine cycle without superheat: 1 - A - 2 - 3 - 4 - 1.

Rankine cycle with superheat : 1 - A - 2 - 2′ -3′ - 4 - 1.

       Carnor cyle without superheat: A - 2 - 3 -4″ - A.

Carnot cycle with superheat: A - 2″ - 3′ - 4² - A.

1495_Compare Rankine cycle with Carnot cycle.png

(1) The thermal efficiency of a Rankine cycle is lower than the equivalent Carnot cycle. Temperature of heat supply to Carnot cycle = TA; Mean temperature of heat supply to Rankine

470_Compare Rankine cycle with Carnot cycle1.png 

(2) Carnot cycle requires a compressor to handle wet steam mixture whereas in Rankine cycle, small pump is used.

(3) The steam can be superheated at constant pressure along 2 - 2' in a Rankine cycle. Superheating of steam in Carnot cycle at constant temperature along A - ?" is accompanied by a fall of pressure which is difficult to attain in practice because heat transfer and expansion process should go side by side. Therefore Rankine cycle is taken as ideal cycle for steam power plants.

Posted Date: 10/15/2012 7:09:44 AM | Location : United States







Related Discussions:- Compare rankine cycle with carnot cycle - thermodynamics, Assignment Help, Ask Question on Compare rankine cycle with carnot cycle - thermodynamics, Get Answer, Expert's Help, Compare rankine cycle with carnot cycle - thermodynamics Discussions

Write discussion on Compare rankine cycle with carnot cycle - thermodynamics
Your posts are moderated
Related Questions
Rich Mixture: It generally ranges from approximately 7 : 1 to 13 : 1 proportion of air to fuel by weight. To get a high power rich mixture is required. In fact to start the e

Dryness fraction measurement: Sensible Hea t of Water or Heat of Liquid or Enthalpy of Liquid (h) Sol.: It is quantity of heat which is required to raise unit mass

Determine the Shear Force and Bending Moment Equation The 13-ft long beam ABCDE is simply supported with concentrated loads of 2000 lb at points A and D and a distributed

Consider a simple single machine system. It consists of workpieces that enter the system, wait their turn to be processed on a single machine, and then depart the system. The workp

Tensile strength: What will be its ultimate tensile strength? Solution The condition for necking is = n = 0.3077 Hence using this value of , the true stress at ne

Explain concepty of Worktable in radial drilling machine The worktable is supported on an arm mounted to the column. The worktable can be adjusted vertically to accommodate dis

IMPO R T AN T TERMS: Fi r e Box: Place where fuel is burnt. Grat e : The fuel is burnt on this. Baffles : Plates are used for directing the flow of flue gass

howto calculate area in hysteresisn..

Resistant Body: A body is called resistant body if this is capable of transmitting the needed forces with negligible deformation. Machine: A machine is a mechanism or a se

diference between thermal and thermodynamic equallibrim