Mixed/Dual Cycle

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Thermodynamic cycles
Atkinson cycle Brayton/Joule cycle Carnot cycle Combined cycle Crower cycle Diesel cycle Ericsson cycle Hirn cycle Kalina cycle Lenoir cycle Linde-Hampson cycle Miller cycle Mixed/Dual Cycle Otto cycle Rankine cycle Scuderi cycle Stirling cycle Two-stroke cycle One-stroke cycle Bourke cycle Wankel cycle
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Dual Combustion Cycle (also known as the limited pressure or mixed or Sabathe cycle) is a thermal cycle that is a combination of the Otto cycle and the Diesel cycle. Heat is added partly at constant volume and partly at constant pressure, the advantage of which is that more time is available for the fuel to completely combust. Because of lagging characteristics of fuel this cycle is invariably used for diesel and hot spot ignition engines.

The dual cycle consists of following operations:

1. Adiabatic compression
2. Addition of heat at constant volume.
3. Addition of heat at constant pressure.
4. Adiabatic expansion.
5. Rejection of heat at constant volume.