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Experiment 4: complete cycle, Ideal otto cycle – PASCO TD-8565 Adiabatic Gas Law Apparatus User Manual

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Experiment 4: Complete Cycle

Objectives

Observe the Otto cycle operating in reverse and compare the ratio of the (work on the gas)/
(heat out of gas) with the Otto cycle efficiency.

Physical Principles

The ideal Otto cycle models the action of a four-stroke gasoline engine and includes the
strokes shown on the PV diagram below:

Target Students

General physics, physics for scientists and engineers, physical chemistry, engineering
thermodynamics.

Ideal Otto Cycle

P-V diagram

P

V

Heat Rejection

Power Stroke

Combustion

Process

Work

Compression Stroke