What is Combustion Chamber and its types?

A combustion chamber is a space within an engine or furnace where fuel and air mix and ignite to produce energy. The primary types of combustion chambers include open, closed, and semi-closed chambers. Open chambers allow for unrestricted airflow and are often used in simpler applications, while closed chambers contain the combustion process and are more efficient, commonly found in modern engines. Semi-closed chambers offer a balance, providing some control over the combustion process while allowing for partial exhaust flow.