L&T Heavy Engineering - Nuclear Power Plants
A pioneer in the field of manufacturing technology development, equipment manufacture and site / plant services for the Indian nuclear power plant programme, L&T is a recipient of the prestigious ‘INS Industrial Excellence Award’ for outstanding contribution in the nuclear power plant sector.
Control Rod Drive Mechanism (CRDM)
Controlling nuclear reactions is a matter of ensuring that reactor control rods assume their correct position at precisely the right time. A control rod drive mechanism is designed to insert, withdraw or maintain the position of these control rods from which neutron absorbers are suspended.
L&T has expertise in design and manufacturing of CRDMs. We have supplied 100s of CRDMs so far for nuclear utilities across the nation.
Fuel Transfer Arm & Tool Delivery System
Fuel handling machines or fuel transfer arm transfers handle the fresh as well as irradiated core subassemblies between core, internal storage locations and in-vessel transfer pot.
We have manufactured and installed Fuelling Machine carriage columns, Fuel Transfer arm for nuclear utilities.
Heat Exchanger
Steam generators are heat exchangers used to convert water into steam from heat produced in a nuclear reactor core. The coolant is pumped, at high pressure to prevent boiling, from the reactor coolant pump, through the nuclear reactor core, and through the tube side of the steam generators before returning to the pump.
L&T Heavy Engineering has expertise in manufacturing steam generators and various types of heat exchangers (Bleed Condenser, Bleed Cooler, Stand-by Cooler, Moderator Heat Exchanger, etc.) for various nuclear power plants.
We have a proven track record of manufacturing Steam Generators for the major nuclear utilities across the nation.
Critical Sodium to Water heat transfer steam generators are manufactured in Dust Free Enclosures, using high end technology innovation.
Heavy Water Production Equipment
Heavy water is used as a coolant and moderator in CANDU type reactors.
L&T specialises in manufacturing different types of heavy water Distillation Columns and Trays.
Plasma Reactor & Research Reactor
L&T has manufactured Tokamak Reactor Vessel for the fusion reactor ADITYA, the first indigenously designed and built Tokamak of India.
We are actively involved in the fabrication of various components for research reactors like Deck Plate, Fueling Machine, Carriage and Trolley, Steam Generator Test Facility, etc.
We have supplied equipment and services to all indigenous Nuclear Power Plants and Research & Allied Projects since 1967.
Reactor End Shields
Reactor Head (Roof Slab) for PFBR Reactors
Reactor Heads or End-Shields are used to prevent the direct radiation field that comes from the reactor’s core region. Heavy water is circulated within End-Shield system to remove the heat generated by the radiation
L&T has manufactured and delivered more than 30 reactor heads to cater the need of Indian Nuclear Power programme.
The Roof Slab is installed as the head on the reactor main vessel to mount the reactivity control devices in PFBR design. Manufacturing of Roof Slab involves Stainless Steel Fabrication with flatness requirement of ± 12mm in ~13 meter diameter. L&T is the only organisation in India to manufacture Roof Slabs.
Reactor Vessels
Nuclear reactor vessels contain core internals and coolant. They are designed to withstand high temperature and high pressure.
Reactor Vessel (Calandria) for PHWR (Candu) Reactors
Calandria is reactor core vessel of CANDU type reactors, made from Stainless Steel, contains heavy water, a moderator used to moderate neutrons to achieve nuclear fission.The pressure tubes inside calandria contains heavy water as coolant which carries the heat from the reactor core.
L&T has a track record of manufacturing the Calandria since, 1969 (RAPP-II). The manufacturing of reactors more than 10m diameter involves precision fabrication with stringent tolerances.
Reactor Vessel for Prototype Fast Breeder Reactor (PFBR)
L&T delivered the main vessel and safety vessel with highest accuracy level (i.e. within ±12mm for ~13 meter diameter vessels), manufactured from Stainless Steel at Kalpakkam for India’s First commercial Fast Breeder Reactor on schedule.
The main vessel of reactor assembly houses hot and cold sodium pools separated by an inner vessel. To contain the sodium in the unlikely event of leak in the main vessel, a Safety Vessel is provided surrounding the main vessel.
Spent Fuel Handling Equipment
Spent nuclear fuel shipping casks are used to transport spent nuclear fuel used in nuclear power plants and research reactors. Each shipping container is designed to maintain its integrity under normal transportation conditions and during hypothetical accident conditions.
L&T fabricates Spent Fuel Canisters & Casks, High Level radioactive waste storage tanks, Dump Tanks, etc.
Steam Generators
Steam generators are heat exchangers used to convert water into steam from heat produced in a nuclear reactor core. The coolant is pumped, at high pressure to prevent boiling, from the reactor coolant pump, through the nuclear reactor core, and through the tube side of the steam generators before returning to the pump.
L&T has expertise in manufacturing steam generators and various types of heat exchangers (Bleed Condenser, Bleed Cooler, Stand-by Cooler, Moderator Heat Exchanger, etc.) for nuclear power plants. Critical Sodium to Water heat transfer steam generators are manufactured in Dust Free Enclosures, using high end technology innovation.
We have a proven track record of manufacturing Steam Generators for major nuclear utilities across the nation.
Source:-
Nuclear Power Plant | Heavy Engineering | L&T India
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