Su 30 MKI Fuel System HAl

SUMMER TRAINING REPORTon “Sukhoi Su 30 MKI-Fuel System”From HAL Accessories DivisionLucknowduring16th Jul-14th Aug 10 : 

SUMMER TRAINING REPORTon “Sukhoi Su 30 MKI-Fuel System”From HAL Accessories DivisionLucknowduring16th Jul-14th Aug 10 Prepared By: ROHIT GUPTA 0705232018 EI Final Year

ABOUT HAL : 

ABOUT HAL HAL came into existence on 1st October 1964. The Company was formed by the merger of Hindustan Aircraft Limited with Aeronautics India Limited and Aircraft Manufacturing Depot, Kanpur. The Company traces its roots to the pioneering efforts of an industrialist with extraordinary vision, the late Seth Walchand Hirachand, who set up Hindustan Aircraft Limited at Bangalore in association with the erstwhile princely State of Mysore in December 1940. The Government of India became a shareholder in March 1941 and took over the Management in 1942.

HAL Divisions 19 Production Units & 9 R&D in 7 location over India : 

HAL Divisions 19 Production Units & 9 R&D in 7 location over India Bangalore Division Kanpur Division Koraput Division Hyderabad Division Nasik Division Lucknow Division Korwa Division

HAL Services : 

HAL Services

ABOUT HAL ACCESSORIES DIVISION LUCKNOW : 

ABOUT HAL ACCESSORIES DIVISION LUCKNOW Established in 1970. Primary Objective - To manufacture systems and accessories for various aircrafts and engines and attain self sufficiency in this area. Spread over an area of 94,000 sq m. Division Manufactures - Civil Aircrafts like Avro, Dornier, Cheetah, Cheatak & Advanced Light Helicopters(ALH) & SU-30.

Divisions of HAL Lucknow : 

Divisions of HAL Lucknow LCA Division ALH Division Sukhoi Division Instrument Factory Accessories Division

Specification of Sukhoi SU-30 MKI : 

Specification of Sukhoi SU-30 MKI Crew: 2 Length: 21.935 m Wingspan : 14.7 m Height: 6.36 m Wing area: 62.0 m² Empty weight: 17,700 kg Loaded weight: 24,900 kg Max takeoff weight: 38,800 kg Maximum speed: Mach 2.35(2,500 km/h) at 11,000m. Range: 5,000 km (2,700 nmi) with internal fuel tank.

Fuel Tanks: : 

Fuel Tanks: Number of fuel tanks: 6 Name of fuel tanks: 1, 2, 3RT, 3LT, 4, 5 Fuel Capacity: 1200 kg Special detail: Tank no. 2 is the main tank & also known as service tank having fuel capacity of 600 kg

Fuel Systems: : 

Fuel Systems: Purpose of an aircraft fuel system is: To store & deliver the proper amount of clean fuel at the correct pressure to the engine Fuel systems should provide positive and reliable fuel flow through all phases of flight such as 1)Changes in altitude 2)Violent maneuvers 3)Sudden acceleration and deceleration Fuel systems should also continuously monitor system operation such as: Fuel pressure Fuel flow Warning signals Tank quantity

Types of Fuel Systems: : 

Types of Fuel Systems: Types of Fuel Systems can be classified in two broad categories: Gravity-Feed Systems: Gravity-Feed Systems use only the force of gravity to push fuel to the engine fuel-control mechanism . Reason for this system to exist in an aircraft: 1)The bottom of the fuel tank must be high enough to provide adequate pressure to the fuel-control component. 2)This type of system is often used in light aircraft.

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Pressure-Feed Systems: Pressure-Feed Systems require the use of a fuel pump to provide fuel-pressure to the engine’s fuel-control component. Reason for this system to exist in an aircraft: 1)The fuel tanks are too low to provide enough pressure from gravity. 2)The fuel tanks are at great distance from the engine. 3) Also, most large aircraft with higher powered engines require a pressure system regardless of the fuel tank location because of the large volume of fuel used by the engines.

Fuel flow & metering system: STR7-51 : 

Fuel flow & metering system: STR7-51 This system measures fuel quantity available in aircraft. This system performs following major function: Fuel flow metering: - This part computes total quantity of fuel available in aircraft & transmits to various airborne system for display & recording. Fuel quantity gauging :- This part exclusively computes quantity of fuel available in service tank & transmit to various airborne system for display & warning. Automatic control :- This part manages sequence of fuel flow to/from various tanks during refueling as well as during consumption.

Fuel quantity transmitters: DT41 : 

Fuel quantity transmitters: DT41 This sensors are used for computing fuel quantity in service tank. Capacitance of the probes changes based on the variation in fuel level in tank. Resultant capacitance of following probes acts as an input for computing fuel in service tank. Different capacitance probes used in Su-30MKI are DT41-4, DT41-5, DT41-6, DT41-7, DT41-8.

Fuel flow transmitters: DRT2-2A : 

Fuel flow transmitters: DRT2-2A These are impeller types of sensors which produces signal proportional to the rate of flow of fuel through it. Fuel consumed by aircraft is computed based on the signals provided by these sensors.

Fuel Quantity Unit: BT3-4 : 

Fuel Quantity Unit: BT3-4 This instrument computes quantity of fuel in service tank based on signals from sensors which are fuel probes (DT41). It delivers computed information to following instruments: Digital light indicator(ITSS7-1) Refueling Control Panel(PKUZ&-2) Stand by Equipment(SBI) Complex Information Signaling System(KISS) It gives warning signal to pilot for residual fuel of 150 kg in main tank.

Fueling Control Panel: PKUZ7-2 : 

Fueling Control Panel: PKUZ7-2 This instrument is a display device & is used on ground during refueling. It performs following functions: To display total fuel quantity To display fuel quantity of service tank To display actual fuel density

Electronic transducer unit:BEP51-1 : 

Electronic transducer unit:BEP51-1 This unit is main processing part of automatic control portion of STR7-51 system. It manages fuel flow based on signals from sensors, magnetic operated level switches (DSMKs) fitted in various tanks. It also senses total residual fuel quantity & transmits the warning signal to pilot.

Semiconductor Relay Control Unit: BUPR21-1 : 

Semiconductor Relay Control Unit: BUPR21-1 This is a part of automatic control portion of STR7-51 system. This instrument works as an amplifier & a switching device for the signals required for opening & closing of valve of various tanks of aircraft.

Cockpit: : 

Cockpit: It has multi-function display. Made up of special LCD. This LCDs can withstand a temperature of -40 degree Celsius. It can absorb repeated violent impacts of landing on aircraft carriers. The display is easily readable even in bright sunlight & dim enough for the pilot to read at night without losing night vision.

Engines: : 

Engines: Su-30MKI is powered by the Al-31FP (F for forsazh & P for povorotnoye means afterburning movable) engines. The Al-37FU engine have 2D Thrust Vectoring Control (TVC) Nozzles. 2D TVC means that the Nozzles can be directed/pointed in 2 axis or directions - up or down. TVC makes an aircraft much more maneuverable.

Continued….. : 

Continued….. The nozzles of the MKI are capable of deflecting 32 degrees in the horizontal plane and 15 degrees in the vertical plane.

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Thank You