ME 8792 PPE Notes

Anna University Regulation 2017 EEE ME 8792 PPE Notes, POWER PLANT ENGINEERING Engineering Lecture Handwritten Notes for all 5 units are provided below. Download link for EEE 3RD SEM ME 8792 POWER PLANT ENGINEERING Engineering Lecture Handwritten Notes are listed down for students to make perfect utilization and score maximum marks with our study materials.

OTTO CYCLE

An Otto cycle is an idealized thermodynamic cycle that describes the functioning of a

typical spark ignition piston engine. It is the thermodynamic cycle most commonly found in

automobile engines.

The Otto cycle is a description of what happens to a mass of gas as it is subjected to changes

of pressure, temperature, volume, addition of heat, and removal of heat. The mass of gas that

is subjected to those changes is called the system. The system, in this case, is defined to be

the fluid (gas) within the cylinder. By describing the changes that take place within the

system, it will also describe in inverse, the system’s effect on the environment. In the case of

the Otto cycle, the effect will be to produce enough net work from the system so as to propel

an automobile and its occupants in the environment.

The Otto cycle is constructed from:

Top and bottom of the loop: a pair of quasi-parallel and isentropic

processes (frictionless, adiabatic reversible).

Left and right sides of the loop: a pair of parallel isochoric processes (constant

volume).

The isentropic process of compression or expansion implies that there will be no

inefficiency (loss of mechanical energy), and there be no transfer of heat into or out

of the system during that process. Hence the cylinder, and piston are assumed

impermeable to heat during that time. Work is performed on the system during the

lower isentropic compression process. Heat flows into the Otto cycle through the left

pressurizing process and some of it flows back out through the right depressurizing

process. The summation of the work added to the system plus the heat added minus

the heat removed yields the net mechanical work generated by the system.

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ME 8792 PPE Notes

Anna University 3RD SEM EEE PPE Lecture Handwritten Notes

ME 8792 POWER PLANT ENGINEERING Engineering Notes free download

Anna University EEE PPE Notes Regulation 2017

ME 8792 Notes, PPE Unit wise Lecture Handwritten Notes – EEE 3RD Semester

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