Table of Contents
Why is air compressed before combustion?
Because hot air has higher volume than cold air at the same pressure, there is more hot air available to decompress than there was cold air to compress. Therefore, the engine collects more energy from the decompression of the larger volume of hot air than it expends on compressing the smaller volume of colder air.
Why is a compressor needed in a gas turbine?
The compressor section of the gas turbine engine has many functions. Its primary function is to supply air in sufficient quantity to satisfy the requirements of the combustion burners. At times it may be necessary to cool this high-pressure air.
What is the purpose of the compressor section?
The compressor section of the engine has the important task of providing a sufficient quantity of compressed air to satisfy the requirements of combustion. It increases the pressure of the mass of air that is received at the inlet and provides it to the combustion section at the required pressure.
Why it is all turbine engines have a compressor?
The compressor funcitons to increase the pressure of the air to provide conditions favorable for combustion and expansion of the hot gases through the turbine. At first glance, one may wonder why an engine needs a compressor at all. However, without a compressor, the engine could never develop static thrust.
How does air get into the combustion chamber?
In the basic jet engine, air enters the front intake and is compressed (we will see how later). Then the air is forced into combustion chambers where fuel is sprayed into it, and the mixture of air and fuel is ignited. Gases that form expand rapidly and are exhausted through the rear of the combustion chambers.
Why do jets compress air?
Combustion is a reaction within a mixture of fuel and air. The more air available, the more fuel can be mixed in, resulting in a bigger bang (more energy release). So engines extract work through a thermodynamic cycle, which require compression.
What is combustion chamber in gas turbine?
A combustor is a component or area of a gas turbine, ramjet, or scramjet engine where combustion takes place. It is also known as a burner, combustion chamber or flame holder. In a gas turbine engine, the combustor or combustion chamber is fed high-pressure air by the compression system.
What is the purpose of combustion chamber?
A Combustion Chamber is the area within the Cylinder where the fuel/air mix is ignited. As the Piston compresses the fuel/air mix and makes contact with the Spark Plug, the mixture is combusted and pushed out of the Combustion Chamber in the form of energy.
What is compressor section of gas turbine?
The compressor section of the gas turbine engine has many functions. Its primary function is to supply air in sufficient quantity to satisfy the requirements of the combustion burners.
Why compressor is used in jet engine?
The compressor section of the gas turbine engine has many functions. Its primary function is to supply air in sufficient quantity to satisfy the requirements of the combustion burners. A secondary function of the compressor is to supply bleed-air for various purposes in the engine and aircraft.