Air standard cycles - thermodynamics, Mechanical Engineering

AIR STANDARD CYCLES - thermodynamics:

Most of the power plant operates in the thermodynamic cycle that is the working fluid undergoes a series of processes and returns to its original state finally. Thus, in order to compare the efficiencies of various cycles, a hypothetical efficiency called as air standard efficiency is determined.

If air is used as working fluid in thermodynamic cycle, then cycle is called as "Air Standard Cycle".

To simplify analysis of I.C. engines, the air standard cycles are conceived.

Assumptions

1. The working medium is imagined as a a perfect gas and follows the relation

pV = mRT                    or            P = pRT

2. There is no change in mass of working medium.

3. All the processes which constitute the cycle are reversible.

4. Heat is added and rejected with the external heat reservoirs.

5. The working medium is having constant specific heats.

 

Posted Date: 10/15/2012 3:44:41 AM | Location : United States







Related Discussions:- Air standard cycles - thermodynamics, Assignment Help, Ask Question on Air standard cycles - thermodynamics, Get Answer, Expert's Help, Air standard cycles - thermodynamics Discussions

Write discussion on Air standard cycles - thermodynamics
Your posts are moderated
Related Questions
Evaluate power transmitted by shaft: How do you evaluate power transmitted by shaft (P)? Sol.: Consider force 'F' Newton's acting tangentially on shaft of radius ' R '.

Specification s of Hardness Testing Machines and Indentors: The Brinel cum Rockwell Tester has specifications which are stated below: Ability to determine the hardness up t

explain investment casting with neat sketch

The steam that leaves the super-heater is expanded from 130bar at 535°C to 25.2bar at 310°C in a high pressure turbine. The steam from the exit of the HP turbine is reheated to 535

Q. Effect on the corrosion rate of carbon steel? The velocity of the acid has a significant effect on the corrosion rate of carbon steel. The recommended velocity range for pi

Constituents of seam welding The essential elements of a seam welding machine are: Main frame containing welding transformer and tap switch. Welding head consisting o

GAS METAL ARC WELDING-PRINCIPLE OF OPERATION Gas Metal Arc Welding (GMAW) is one of the arc welding processes in which an electric arc is formed and maintained between a continuo

working, p[rinciple, construction, uses, everything

Q. What do you mean by Thermosetting plastics? This plastic undergoes a number of chemical changes on heating and cure to infusible and practically insoluble articles. The chem

write notes on close-coiled springs ,open-coiled springs semi elliptical leaf springs ,quarter elliptical leaf springs .how to determine shear stress deflection stress energy and