Indian Molten Salt Breeder Reactor (IMSBR) is being designed and developed in BARC with main obje... more Indian Molten Salt Breeder Reactor (IMSBR) is being designed and developed in BARC with main objective of utilizing thorium abundance in India. In order to design the reactor, it is necessary to study the thermal-hydraulic behavior of various molten salts. Moreover, considering the importance of natural circulation in high-temperature systems, experimental studies on natural circulation of molten salts are required. This paper deals with the fabrication of loop with molten salt, LiF + ThF4 (22.5–77.5 wt%), which is proposed as blanket salt for IMSBR program. Loop is fabricated with 15 NB Sch 40 pipe made of Hastelloy-N material having height of 400 mm and width of 300 mm. CFD analysis for natural circulation of the same loop is also carried out. CFD simulation is performed for steady state and transient cases at different heater powers. Various transients, such as step power change, heater trip, and start-up of natural circulation, are also carried out. Comparison of CFD results wit...
Journal of Nuclear Engineering and Radiation Science, 2017
Conceptual molten salt breeder reactor (MSBR) is under development in Bhabha Atomic Research Cent... more Conceptual molten salt breeder reactor (MSBR) is under development in Bhabha Atomic Research Centre (BARC) with long-term objective of utilizing abundant thorium available in India. It is based on molten salts, which acts as fuel, blanket, and coolant for the reactor. LiF–ThF4 (77.6–22.4 mol %) is proposed as a blanket salt for Indian MSBR. A laboratory scale molten salt natural circulation loop (MSNCL) named molten active fluoride salt loop (MAFL) has been setup for thermal-hydraulic, material compatibility, and chemistry control studies. Steady-states and transient experiments have been performed in the operating temperature range of 600–750 °C. The loop operates in the power range of 250–550 W. Steady-state correlation given for natural circulation flow in a loop is compared with the steady-state experimental data. The Reynolds number was found to be in the range of 57–114. Computation fluid dynamics (CFD) simulation has also been performed for MAFL using openfoam code, and the r...
Indian Molten Salt Breeder Reactor (IMSBR) is being designed and developed in BARC with main obje... more Indian Molten Salt Breeder Reactor (IMSBR) is being designed and developed in BARC with main objective of utilizing thorium abundance in India. In order to design the reactor, it is necessary to study the thermal-hydraulic behavior of various molten salts. Moreover, considering the importance of natural circulation in high-temperature systems, experimental studies on natural circulation of molten salts are required. This paper deals with the fabrication of loop with molten salt, LiF + ThF4 (22.5–77.5 wt%), which is proposed as blanket salt for IMSBR program. Loop is fabricated with 15 NB Sch 40 pipe made of Hastelloy-N material having height of 400 mm and width of 300 mm. CFD analysis for natural circulation of the same loop is also carried out. CFD simulation is performed for steady state and transient cases at different heater powers. Various transients, such as step power change, heater trip, and start-up of natural circulation, are also carried out. Comparison of CFD results wit...
Journal of Nuclear Engineering and Radiation Science, 2017
Conceptual molten salt breeder reactor (MSBR) is under development in Bhabha Atomic Research Cent... more Conceptual molten salt breeder reactor (MSBR) is under development in Bhabha Atomic Research Centre (BARC) with long-term objective of utilizing abundant thorium available in India. It is based on molten salts, which acts as fuel, blanket, and coolant for the reactor. LiF–ThF4 (77.6–22.4 mol %) is proposed as a blanket salt for Indian MSBR. A laboratory scale molten salt natural circulation loop (MSNCL) named molten active fluoride salt loop (MAFL) has been setup for thermal-hydraulic, material compatibility, and chemistry control studies. Steady-states and transient experiments have been performed in the operating temperature range of 600–750 °C. The loop operates in the power range of 250–550 W. Steady-state correlation given for natural circulation flow in a loop is compared with the steady-state experimental data. The Reynolds number was found to be in the range of 57–114. Computation fluid dynamics (CFD) simulation has also been performed for MAFL using openfoam code, and the r...
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Papers by RAKESH CHOUHAN