NUCLEAR POWERED AIRCRAFT CARRIER
SUBMITTED BY:
AAKASH K. RAVERKAR
ABHIMANYU SINGH
ABHISHEK BHANDARI
ANKIT ABHISHEK
ANKIT KUMAR
WHAT IS AN AIRCRAFT CARRIER
CONFIGURATION
• Catapult-assisted take-off but arrested-recovery (CATOBAR)
• Short take-off but arrested-recovery (STOBAR)
• Short take-off vertical-landing (STOVL)
• Helicopter Carrier
LAND BASED REACTORS & NAVAL REACTORS: DIFFERENCE
• The power of land based reactors is in the range of 3,000 MW; In contrast, a submarine reactor’s power is smaller in the range of the hundreds of MW
• Land based systems use uranium fuel enriched to the 3-5 percent range; Highly enriched fuel at the 93-97 percent level is used in naval reactors.
• Naval Reactors use only Pressurized Water Reactors.
COMPOSITION OF ENRICHED FUEL
REACTOR CONTAINMENT
• There exists a multitude of naval reactor designs.
• Because of the weight of the power plant and shielding, the reactor and associated steam generation equipment is located at the centre of the ship.
• Watertight bulkheads isolating the reactor components surround it.
• The greater part of the system is housed in a steel containment, preventing any leakage of steam to the atmosphere in case of an accident.
• The containment vessel can withstand a pressure of 13 atm.(Savannah design)
SECONDARY SHIELDING
• The secondary shielding consists of concrete, lead, and polyethylene and is positioned at the top of the containment
• . A pre-stressed concrete wall with a thickness of 122 cm surrounds the lower section of the containment.
• This wall rests on a steel cushion. The upper section of the secondary shielding is 15.2 cm of lead to absorb gamma radiation, and 15.2 cm of polyethylene to slow down any neutrons.
• The space between the lead plates is filled with lead wool.
• The lead used in the shielding is cast by a special method preventing the formation of voids and in homogeneities.
NEED FOR NUCLEAR POWERED AIRCRAFT CAREER IN INDIA
• The mission of the aircraft carrier force is to provide a credible, sustainable, independent forward presence and a conventional deterrence in peace times.
• In times of crisis, it operates as the cornerstone of joint and/or allied maritime expeditionary forces.
• It operates and support air attacks on enemies, protects friendly forces and engages in sustained independent operations in times of war.
• Presently deployed aircraft carriers run on heavy diesel engines.
• They are smaller in size, less powerful, more fuel consumptive and need constant resupplying.
COMPARISON
PROPOSED VITAL STATS
• Power Plant: Two nuclear reactors, four shafts.
• Length: 1,092 feet.
• Beam: 134 feet.
• Displacement: 97,000 tons at full load.
• Speed: 30 knots, 34.5 miles per hour.
• Aircraft: 85-100
• Crew: 500 officers, 5,000 enlisted.
THANK YOU AND HAPPY HUNTING
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