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

V pulley design, What will be the criteria to be looked into get the pulley...

What will be the criteria to be looked into get the pulley rpm increase

Design ventilation systems for plant, Q. Design Ventilation Systems for pla...

Q. Design Ventilation Systems for plant? While some natural ventilation may sometimes be used, a pressurized HVAC (heating, ventilation and air-conditioning) system is more typ

Material handling equipment, In selection of material handling equipment...

In selection of material handling equipment itself Hageman indicates that the final consideration are: 1. Methods of Installation: Operating controls should be accessibl

Determine the work done, Determine the work done per minute by a punch tool...

Determine the work done per minute by a punch tool making 20 working strokes min when a 30 mm diameter hole is punched in 5 mm thick plate with ultimate shear strength of 450 MPa i

Angle of repose, Angle of Repose(α): It is the maximum angle of inclin...

Angle of Repose(α): It is the maximum angle of inclined plane on which body tends to move down the plane because of its own weight. Consider the equilibrium of body when body

Production technology, How is gas cutting torch different from the gas weld...

How is gas cutting torch different from the gas welding torch .explain

Reversible and irreversible processes - thermodynamics, Reversible and irre...

Reversible and irreversible processes: Thermodynamic system which is capable of restoring the original state of it by reversing the factors responsible for occurrence of proc

Describe cope and drag pattern, Cope and drag pattern These are similar...

Cope and drag pattern These are similar to split patterns. In addition to splitting the pattern, the cope and drag halves of the patterns along with the gating and risering sys

Alloy steels, Alloy Steels: Carbon steels in their commercial forms al...

Alloy Steels: Carbon steels in their commercial forms all times comprise specific amounts of other elements. A lot of of these elements enter the steel from the ores and it is

Feed speed-spindle rpm-cutting time material removal rate, A hole of 25 mm ...

A hole of 25 mm diameter and 62.5 mm depth is to be drilled. The suggested feed is 1.25 mm/rev.and the cutting speed is 60 m/min. Assume the clearance height is 5 mm. Determine: f

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