Carnot theorem and efficiency - thermodynamics, Mechanical Engineering

Assignment Help:

Carnot Theorem:

No heat engine operating in cycle between the two given thermal reservoir, having fixed temperature can be more efficient than reversible engine operating between same thermal reservoir.

* Thermal efficiency  η th  = Work out/Heat supplied

* Thermal efficiency of a reversible engine (  ηrev)

ηrev= (T1  - T2)/T1  ;

* No engine can be much efficient than reversible carnot engine that is ηrev > ηth

Carnot Efficiency

= (Heat added - Heat rejected) / Heat added = [mRT2lnV2/V1 - mRT4lnV3/V4]/ mRT2lnV2/V1

= 1- T1/T2

 


Related Discussions:- Carnot theorem and efficiency - thermodynamics

Design a soda vending machine, Design a soda vending machine that can deliv...

Design a soda vending machine that can deliver three kinds of soda, A, B and C. All the three soda cost the same amount - 70 cents. The vending machine has four coin slots, one eac

Angle of twist is zero on the shaft, Angle of twist is zero on the shaft: ...

Angle of twist is zero on the shaft: A shaft 10 m long and 100 mm diameter during its length is fixed at the ends and is subjected to two opposite torques of 8 kN-m and 10 kN-

Geometric defects-undercut-excess reinforcement-distortion, Geometric Defec...

Geometric Defects   Undercut Undercut represents a depression into the base metal adjacent to the toe of the weld and if it forms a notch, it is a potential danger for th

Front top view of the motorcycle part of motorcycle, Figure : Front Top Vie...

Figure : Front Top View of the Motorcycle Part No. Part Name Functions 1 Turn signal switch Used to give

Stages in making a spot welding, Q.Show the procedure of spot welding ? ...

Q.Show the procedure of spot welding ? The steps involved in making a spot weld are listed below and shown but before spot welding one must make sure that (i) The job is clea

What is the combined stiffnes, A competitor in a hill-climb event finds dur...

A competitor in a hill-climb event finds during practice that his car becomes airborne at a particular point on the hill.  Shortly after landing the lowest point in the car just co

What is clad plate and overlay welding, Q. What is Clad plate and overlay w...

Q. What is Clad plate and overlay welding? Strip back cladding on clad plate a minimum of 5 mm (3/16") from the edges of weld preparation before welding on the backing plate.

Manufacturing engineering-2, Enumerate the essential features of a milling ...

Enumerate the essential features of a milling fixture

Find the machine torque angle, Find the Machine Torque Angle (a)  What...

Find the Machine Torque Angle (a)  What are the four operating conditions that must be satisfied before a synchronous machine can be synchronised to an electrical grid? (b)

Workshop, importance of workshop in mechanical

importance of workshop in mechanical

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