0
In an axial flow turbo fan engine there are two compressors. The first compressor is the low pressure compressor or it can also be referred to as the fan and is the first rotating assembly in the engine located aft of the engine inlet. The second rotating assembly located aft of the low pressure compressor or fan is the high pressure compressor. The basic difference between the low and high pressure assemblies is the amount of air pressure they generate. Low pressure compressors usually have a small number of stages and fewer and larger blades. Whereas the high pressure section has more stages and smaller blades. As the air passes through each stage of the compressors it is squeezed thus the pressure and temperature increase. When the air flow exits the high pressure compressor it is at its highest temperature and pressure generated by the cold section (compressor section) of the engine. Hot section/combustion section is another matter.
Keep in mind that there are numerous turbo fan/turbine engines and each one probably will be configured differently as far as the number of stages and blades in each compressor section.
What else can I help you with?
What is a tapered pressure plug?
google. "Unbrako" They make pressure plugs and describe what they are. In short. A pressure plug is often used in Hydraulics to seal off 5000 psi oil. the taper ensures the formation of a tight seal in the thread.
What is the pressure of a 100 foot height pipe?
The pressure of a pipe at a 100-foot height is dependent on the fluid inside the pipe and the acceleration due to gravity. The pressure can be calculated using the equation P = ρgh, where P is the pressure, ρ is the fluid density, g is the acceleration due to gravity, and h is the height of the column of fluid.
Why do you measure electricity in volts and amps?
Because they are different characteristics. If you'd compare electricity to water, Volts would be the pressure, and Amps would be the flow. So you can have high pressure but little flow - like a water pistol. Or you can have high flow and little pressure - like upending a bucket.
What are the advantages and disadvantages of Chinese education?
Advantages of Chinese education include high academic standards and emphasis on core subjects like math and science. However, disadvantages may include high pressure on students to perform well on standardized tests, limited focus on creativity and critical thinking, and lack of individualized teaching methods.
What are the modern methods employed for food preservation?
Some modern methods for food preservation include refrigeration, freezing, canning, vacuum packaging, irradiation, and high-pressure processing. These methods help extend the shelf life of food products by slowing down microbial growth, enzyme activity, and oxidation.
What is intermediate pressure turbine?
Some varieties of gas turbine engines (e.g. RR Trent and RB211) have 3 concentric rotating shafts. Each shaft connects a compressor with a turbine. The low pressure compressor, or fan, is driven by the low pressure turbine. The high pressure compressor is driven by the high pressure turbine. Between the low and high pressure compressors there is an intermediate pressure compressor and, guess what... it's driven by the intermediate pressure turbine.
How does hmu works in turbine engine?
In a turbine engine, the High-Pressure Compressor (HPC) compresses incoming air, increasing its pressure and temperature before it enters the combustion chamber. Here, fuel is injected and ignited, producing high-temperature, high-pressure gas. This gas expands rapidly and is directed through the turbine, causing it to spin and drive the compressor. The remaining energy in the exhaust gas is used to produce thrust, propelling the aircraft forward.
What is the Airflow or a turbine engine?
Airflow in a turbine engine refers to the movement of air through the engine's various components, including the intake, compressor, combustion chamber, and turbine. This airflow is crucial for the engine's operation, as it facilitates the combustion of fuel and the generation of thrust. The compressor increases the pressure of incoming air, while the turbine extracts energy from the high-temperature exhaust gases, driving the compressor and producing thrust. Efficient airflow management is essential for maximizing performance and fuel efficiency in turbine engines.
GAS Turbine parts and function of each part?
A gas turbine consists of three main sections: the compressor, combustion chamber, and turbine. The compressor draws in and compresses air, increasing its pressure and temperature. In the combustion chamber, fuel is mixed with the compressed air and ignited, producing high-temperature, high-pressure gases. Finally, the turbine extracts energy from these gases, converting it into mechanical energy to drive the compressor and produce power.
What is stalling in gas turbine compressor?
the engine is having high pressure inside the combustion chamber.the flow has to move trough nozzle.incase the pressure is very high at nozzle compared to the intake pressure the flow moves forward.then the compressors shape changed it is not enough to compress the intake air.it is compressor stall
How gas turbine work?
Gas turbine works with the use of many kinds of fuel to run a compressor. The compressor will bring the atmospheric air flows through its highest pressure and with the addition of fuel into the air it will ignite and then the combustion will generate a high-temperature flow.
Where is bleed valve located on engine?
The bleed valve on an engine is typically located on the compressor section, often near the turbine or in the high-pressure compressor stages. Its primary function is to regulate airflow and prevent compressor stall by venting excess air. In aircraft engines, this valve is crucial for managing engine performance during various phases of flight, particularly during takeoff and landing. The exact position can vary depending on the engine design and manufacturer.
How many stages of compresion on a j79 gas turbine engine?
The J79 gas turbine engine features a single-stage fan and a nine-stage axial compressor, which together provide efficient air compression before combustion. This design allows the engine to achieve high thrust levels and operational efficiency. Overall, the engine has a total of nine stages of compression in the axial compressor.
How do you pressurize an aircraft?
There's an engine-driven compressor. On a turbine engine they pull bleed air off one of the turbine sections; on a piston engine plane it's an accessory to the engine. (Having said that, very few piston planes have pressurized cabins--they don't go high enough to need them.)
What is surge in gas turbine?
Surging in gasturbine means that the pressure at the delivery end of the gas turbine compressor becomes very high (as a result of reduced flow at the compressor outlet). When this happens, the compressor pressure at the delivery end increases as the flow decreases upto an extent after which the pressure does not increase and there is a flow reversal. This flow reversal releases the sudden pressure that developed on account of reduced flow. The flow reversal is accomplanied with a loud noise and tremendous vibration. Surging affects the whole machine and if it is of high magnitude, the gas turbine can be ripped apart. Anti-surge devices (Bleed valves) are installed which do not allow the flow to reduce even on low speeds and keep a certain air flow from the compressor during times of low air requirement (startup and shutdown) Surging in gasturbine means that the pressure at the delivery end of the gas turbine compressor becomes very high (as a result of reduced flow at the compressor outlet). When this happens, the compressor pressure at the delivery end increases as the flow decreases upto an extent after which the pressure does not increase and there is a flow reversal. This flow reversal releases the sudden pressure that developed on account of reduced flow. The flow reversal is accomplanied with a loud noise and tremendous vibration. Surging affects the whole machine and if it is of high magnitude, the gas turbine can be ripped apart. Anti-surge devices (Bleed valves) are installed which do not allow the flow to reduce even on low speeds and keep a certain air flow from the compressor during times of low air requirement (startup and shutdown)
On the F108 engine the purpose of the HPT nozzle assembly is to accelerate the energy from the combustion gases to drive the?
High Pressure Turbine
How the compressor working?
Refrigerant enters the compressor inlet as a low pressure vapor. The compressor increases the pressure, and discharges it as a high pressure vapor.
