Question

When the engine is suddenly accelerated there will be a small time delay before the extra energy discharged into the turbine housing volute can speed up the turbine wheel.

(a) True

(b) False

The question was posed to me in class test.

This intriguing question comes from Turbocharging in section Supercharging of IC Engine

Answer 1

Answer: (a) True

Explanation: When an engine is suddenly accelerated, there is indeed a small time delay before the extra energy discharged into the turbine housing volute can speed up the turbine wheel. This delay occurs because it takes time for the exhaust gases to build up enough energy to spin the turbine faster, which in turn boosts the compressor to provide more air to the engine. This phenomenon is known as "turbo lag," and it is one of the challenges associated with turbocharging systems.