E3S Web Conf.
Volume 321, 2021XIII International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2021)
|Number of page(s)||6|
|Section||Heat and Mass Transfert|
|Published online||11 November 2021|
Mathematical modeling and numerical investigation of density wave instability of supercritical natural circulation loop
Department of Mechanical Engineering, SRM Institute of Science and Technology, NCR Campus, Ghaziabad, UP 201204, India
2 Department of Mathematics, Jaypee Institute of Information Technology, Noida,, UP 201304, India
3 Department of Mechanical Engineering, Meerut Institute of Engineering and Technology, Meerut, UP 250005, India
4 Mechanical Engineering Department, Netaji Subhas University of Technology, Dwarka, New Delhi 110078, India
In present paper, a mathematical model based on the one dimensional nonlinear mass, momentum and energy conservation equations has been developed to study the density wave instability (DWI) in horizontal heater and horizontal cooler supercritical water natural circulation loop (HHHC-SCWNCL). The one dimensional nonlinear mass, momentum and energy conservation equations are discretized by using finite difference method (FDM). The numerical model is validated with the benchmark results (NOLSTA model). Numerical simulations are performed to find the threshold stability zone (TSZ) and draw the stability map for natural circulation loop. Further, effect of change in diameter and riser height on the density wave instability of SCWNCL has been investigated.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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