What kind of engine is the Miller cycle?
The Miller cycle engine The Miller cycle was proposed by Miller [5], with the main objective of improving engine efficiency. It is an over-expanded cycle, i.e. a cycle with an expansion ratio higher than its compression ratio.
When to close the valve on a Miller cycle engine?
The ideal supercharged Miller cycle with early and late intake valve closing. When a Miller cycle engine has delayed (late) intake valve closure, it reduces the load on the piston as it rises to begin the compression stroke.
What are the processes in the Miller cycle?
Answer: T1 = 4580 K. The operation of the Miller cycle is shown on a p – V diagram in Fig. 5.6. It includes five processes: adiabatic compression 1 → 2, isochoric heat addition 2 → 3, adiabatic expansion 3 → 4, isochoric heat removal 4 → 5, and isobaric heat removal 5 → 1.
What is the compression ratio of a Miller cycle?
A four-cylinder, 3.50 liter automobile engine operates on an ideal Miller cycle with early closing intake valves shown in Figure 13.52b. It has a compression ratio of 8.00 to 1 and an expansion ratio of 10.0 to 1.
What are the advantages of the Miller cycle?
Miller cycle The Miller cycle is a modification of an over-expanded cycle which provides a higher expansion ratio than compression ratio, with the advantage of providing improved thermal efficiency compared to conventional internal combustion engine operating conditions (Branyon and Simpson, 2012).
What kind of engine is a Miller cycle?
A Miller cycle engine depends on a turbocharger or supercharger. 2. A Miller cycle engine has either an early or late intake valve closing during the compression stroke.
A four-cylinder, 3.50 liter automobile engine operates on an ideal Miller cycle with early closing intake valves shown in Figure 13.52b. It has a compression ratio of 8.00 to 1 and an expansion ratio of 10.0 to 1.
The ideal supercharged Miller cycle with early and late intake valve closing. When a Miller cycle engine has delayed (late) intake valve closure, it reduces the load on the piston as it rises to begin the compression stroke.