A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop
Nowadays, a prime technology in generation IV nuclear reactors, the supercritical water reactor (SCWR), is the main object of focus. The current article aims to develop a thermal hydraulic numerical model for predicting density wave oscillation (DWO) in a supercritical water natural circulation loop...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Computation |
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| Online Access: | https://www.mdpi.com/2079-3197/10/2/25 |
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| author | Santosh Kumar Rai Neha Ahlawat Raghvendra Upadhyay Pardeep Kumar Vinay Panwar |
| author_facet | Santosh Kumar Rai Neha Ahlawat Raghvendra Upadhyay Pardeep Kumar Vinay Panwar |
| author_sort | Santosh Kumar Rai |
| collection | DOAJ |
| description | Nowadays, a prime technology in generation IV nuclear reactors, the supercritical water reactor (SCWR), is the main object of focus. The current article aims to develop a thermal hydraulic numerical model for predicting density wave oscillation (DWO) in a supercritical water natural circulation loop (SCWNCL). A one-dimensional thermal hydraulic mathematical model was developed. The numerical model consists of nonlinear mass, momentum, and energy conservation equations, which were discretized by applying the implicit finite difference technique. The numerical model was validated with experimental results, and numerical simulations were carried out to find the marginal stability boundary (MSB) and draw the stability map for the loop. Further, the effects of geometry (i.e., diameter and hot leg length) and operating parameters (i.e., inlet system pressure and friction factor) on the density wave oscillation of the SCWNCL were analyzed. |
| first_indexed | 2024-03-09T22:16:11Z |
| format | Article |
| id | doaj.art-57e2ab1aa605413987ab8bfa634ab29d |
| institution | Directory Open Access Journal |
| issn | 2079-3197 |
| language | English |
| last_indexed | 2024-03-09T22:16:11Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Computation |
| spelling | doaj.art-57e2ab1aa605413987ab8bfa634ab29d2023-11-23T19:22:29ZengMDPI AGComputation2079-31972022-02-011022510.3390/computation10020025A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation LoopSantosh Kumar Rai0Neha Ahlawat1Raghvendra Upadhyay2Pardeep Kumar3Vinay Panwar4Department of Mechanical Engineering, NCR Campus, SRM Institute of Science and Technology, Ghaziabad 201204, IndiaDepartment of Mathematics, Jaypee Institute of Information Technology, Noida 201304, IndiaDepartment of Mechatronics, Terna Engineering College, Navi Mumbai 400706, IndiaDepartment of Mechanical Engineering, Chandigarh Engineering College Jhanjeri, Mohali 140307, IndiaMechanical Engineering Department, Netaji Subhas University of Technology, New Delhi 110078, IndiaNowadays, a prime technology in generation IV nuclear reactors, the supercritical water reactor (SCWR), is the main object of focus. The current article aims to develop a thermal hydraulic numerical model for predicting density wave oscillation (DWO) in a supercritical water natural circulation loop (SCWNCL). A one-dimensional thermal hydraulic mathematical model was developed. The numerical model consists of nonlinear mass, momentum, and energy conservation equations, which were discretized by applying the implicit finite difference technique. The numerical model was validated with experimental results, and numerical simulations were carried out to find the marginal stability boundary (MSB) and draw the stability map for the loop. Further, the effects of geometry (i.e., diameter and hot leg length) and operating parameters (i.e., inlet system pressure and friction factor) on the density wave oscillation of the SCWNCL were analyzed.https://www.mdpi.com/2079-3197/10/2/25supercritical waterdensity wave instabilitynatural circulation loop |
| spellingShingle | Santosh Kumar Rai Neha Ahlawat Raghvendra Upadhyay Pardeep Kumar Vinay Panwar A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop Computation supercritical water density wave instability natural circulation loop |
| title | A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop |
| title_full | A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop |
| title_fullStr | A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop |
| title_full_unstemmed | A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop |
| title_short | A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop |
| title_sort | study on the effect of geometry and operating variables on density wave oscillation in a supercritical natural circulation loop |
| topic | supercritical water density wave instability natural circulation loop |
| url | https://www.mdpi.com/2079-3197/10/2/25 |
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