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