Name of the ideal cycle which represents sparkignition engin

Name of the ideal cycle which represents spark-ignition engines Name of the ideal cycle which represents compression-ignition engines What ignites the fuel-air mixture of compression-ignition engines What feature distinguishes Stirling and Ericsson cycles Name the ideal cycle which represents turboshaft and turbojet engines How does increased shaft-power demand affect a turboshaft engine turbine inlet condition

Solution

1. ottocycle - is the basic cycle behind the working of a petrol engine or spark ignition engine.
the difference between the otto cycle and diesel cycle are in the heat addition process where in otto cycle its a constant volume heat addittion but in diesel cycle the process is constant pressure process

2. deisel cycle. it is the thermodyanamic cycle on which a compreesion ignition system works.

3. highly compressed hot air ignites the mixture. (in compression ignition engine air is compressed imside the cylinder where its pressure and temperature increases and fuel is injected at this state in the form of droplets. the drops first vapourise and then burn because of the high temperature air in the cylinder.)

4.The difference between the Ericsson and the Stirling cycle is only in the regeneration process. In the Stirling cycle, the regeneration was constant volume. In the Ericsson cycle, it is constant pressure regeneration. The heat edition is isothermal in both the cycles, Stirling as well as the Ericsson cycles.

5.The operation of a turbojet is modelled approximately by the Brayton Cycle
In concept, turboshaft engines are very similar to turbojets, with additional turbine expansion to extract heat energy from the exhaust and convert it into output shaft power. They are even more similar to turboprops, with only minor differences, and a single engine is often sold in both forms.
so brayton cycle is the ideal cycle for both turbojet and turboshaft engines.

6.increased shaft power inturn increases the mass flow rate in the turbine inlet. alloewing more work output deamnd obtained