What is the difference between the Otto cycle and the diesel cycle?

In Otto cycle the heat addition is takes place at constant volume where as in diesel cycle heat is added at constant pressure. Petrol engines work on Otto cycle and diesel engines work on diesel cycle.

What is the basic difference of a diesel and an Otto engine?

The main difference that separates these two cycles is the way they supply heat to the engine to begin the ignition. Another noteworthy difference is that the Otto cycle heat occurs at constant volume, whereas the diesel cycle works on constant pressure.

Is a diesel engine an Otto cycle?

The Diesel cycle is a combustion process of a reciprocating internal combustion engine. This is in contrast to igniting the fuel-air mixture with a spark plug as in the Otto cycle (four-stroke/petrol) engine.

Why is diesel cycle better than Otto cycle?

Although for a given compression ratio the Otto cycle has higher efficiency, because the Diesel engine can be operated to higher compression ratio, the engine can actually have higher efficiency than an Otto cycle when both are operated at compression ratios that might be achieved in practice.

What is the other name for Diesel cycle?

Explanation: Diesel cycle is also known as constant pressure cycle as pressure is constant in this cycle.

Which fuels can an Otto engine run on?

The Otto Cycle engine was eventually adopted to run on Ligroin and eventually gasoline, and many gases. During WWII Otto engines were run on more than 62 different fuels, such as wood gas, coal gas, propane, hydrogen, benzene, and many more. The engine is limited to light fuels.

What is Otto cycle used for?

The Otto Cycle provides the energy for most transportation and was essential for the modern world. Specifically, the vast majority of automobiles seen on the road today use the Otto Cycle to convert gasoline into motion.

What is the difference between Otto cycle and Diesel cycle?

In Otto cycle at the time of heat addition, the piston is at TDC where as in diesel cycle when the piston is in backward stroke, the heat addition begins and last at a portion of piston stroke. The Otto cycle has less compression ratio (7:1 to 10:1) but in diesel cycle the compression ratio is high (11:1 to 22:1).

What is an ideal Otto cycle?

The ideal Otto cycle consists of four internal reversible processes: 2 Isentropic compression 3 Constant volume heat addition 4 Isentropic expansion 1 Constant volume heat rejection

What does Otto cycle mean?

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.

What is the efficiency of Otto cycle?

The Otto cycle has less compression ratio (7:1 to 10:1) but in diesel cycle the compression ratio is high (11:1 to 22:1). In Otto cycle as well as in diesel cycle heat rejection takes place at constant volume. The efficiency of Otto cycle is less as compared with the Diesel cycle.