Compare otto cycle with diesel cycle, Mechanical Engineering

Compare otto cycle with Diesel cycle:

Sol.: These two cycles can be compared on the basis of either the same compression ratio or the same maximum pressure and temperature.

1413_Compare otto cycle with Diesel cycle.png

        1 - 2 - 3 - 5 = Otto Cycle,

          for the identical heat rejection Q2  the higher the

1 - 2 -4 - 5 = Diesel Cycles, heat given Q1,

the higher is cycle efficiency.

So from T-S figure for cycle 1 - 2 - 3 - 5, Q1 is more than that for 1 - 2 - 7 - 5 (area under curve represents Q,).

Hence  ηOtto > ηDiesel

For same heat rejection by otto and diesel cycles both.

Both can be compared on the basis of same maximum pressure and temperature.

1973_Compare otto cycle with Diesel cycle1.png      

1 - 2 - 3 - 4  = Otto Cycle; Here area under curve

1 - 2  - 3 - 4 = Diesel Cycle

1 - 2  - 3 - 4 is more than 1 - 2 - 3 - 4

So diese l > otto; for the same Tmax  and Pmax

 

Posted Date: 10/15/2012 4:25:33 AM | Location : United States







Related Discussions:- Compare otto cycle with diesel cycle, Assignment Help, Ask Question on Compare otto cycle with diesel cycle, Get Answer, Expert's Help, Compare otto cycle with diesel cycle Discussions

Write discussion on Compare otto cycle with diesel cycle
Your posts are moderated
Related Questions
Wrought Aluminium Alloys Extrusion ingots and sheets are cast through semi-continuous direct chill method. The sheet ingots are scalped in which about 12 millimeter of ingot s

Clutch cable routing : Ensure that the cable is routed as per standard routing, through the brackets provided.

T emperatur e Measurement by Using Thermometers: To measure temperature at temperature scale should be devised assigning arbitrary numbers to a known specific level of hotne

what is equilibrium of rigidity?

how to understand what is carnot vapour cycle???please understand me..??

The Contractor is responsible for obtaining all drawings, standards and specifications referred to in the bid documents and to request as needed additional or missing reference dat

Find the coefficient of friction between ladder and floor: A ladder of 5m long rests on horizontal ground and leans against smooth vertical wall at an angle of 70° with the h

what are the essentials of a good steam generator?

Radiu s of Gyration (K) The radius of gyration of given lamina about given axis is that distance from te given axis at which all the elemental parts of lamina would have to be