Mechanical Engineering Exam > Mechanical Engineering Videos > Thermodynamics > Otto Cycle
Otto Cycle Video Lecture | Thermodynamics - Mechanical Engineering
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FAQs on Otto Cycle Video Lecture - Thermodynamics - Mechanical Engineering
| 1. What is an Otto cycle? |  |
Ans. The Otto cycle is a theoretical thermodynamic cycle that represents the idealized process of a four-stroke internal combustion engine. It consists of four distinct processes: intake, compression, combustion, and exhaust. The cycle is named after Nikolaus Otto, the German engineer who invented the four-stroke engine.
| 2. How does the Otto cycle work? | |
Ans. The Otto cycle begins with the intake stroke, where a mixture of air and fuel is drawn into the cylinder. This is followed by the compression stroke, where the mixture is compressed to a much smaller volume, increasing its temperature and pressure. The combustion stroke then takes place, igniting the compressed mixture and generating power. Finally, the exhaust stroke expels the burned gases from the cylinder.
| 3. What is the purpose of the Otto cycle? | |
Ans. The purpose of the Otto cycle is to convert the chemical energy stored in the fuel into mechanical work. This work is used to power the vehicle or machinery driven by the internal combustion engine. The Otto cycle is widely used in gasoline-powered vehicles, as it provides an efficient and reliable method of converting fuel into motion.
| 4. What are the advantages of the Otto cycle? | |
Ans. The Otto cycle offers several advantages. Firstly, it provides good fuel efficiency, especially when compared to other internal combustion engine cycles. Secondly, it produces lower emissions of pollutants, such as carbon monoxide and hydrocarbons, due to the complete combustion process. Additionally, the Otto cycle allows for smooth and consistent power delivery, making it suitable for various applications.
| 5. How does the Otto cycle differ from the Diesel cycle? | |
Ans. The main difference between the Otto cycle and the Diesel cycle lies in the combustion process. In the Otto cycle, the air-fuel mixture is ignited by a spark plug, while in the Diesel cycle, the fuel is ignited solely by the heat generated from the compressed air. This difference leads to variations in the compression ratio, efficiency, and operating characteristics of the engines using these cycles.
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Nov 15, 2024 Last updated |
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