Numerical investigation of steady state characteristics and stability of supercritical water natural circulation loop of a heater and cooler arrangements
The present paper studies the thermal-hydraulic behaviour of the rectangular supercritical natural circulation loop (SCNCL) using numerical model of one dimensional. Then the results of this model is confirmed with experimental and benchmark results. Variations with several geometric parameters like...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-11-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573321003004 |
| _version_ | 1818458217438511104 |
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| author | Santosh Kumar Rai Pardeep Kumar Vinay Panwar |
| author_facet | Santosh Kumar Rai Pardeep Kumar Vinay Panwar |
| author_sort | Santosh Kumar Rai |
| collection | DOAJ |
| description | The present paper studies the thermal-hydraulic behaviour of the rectangular supercritical natural circulation loop (SCNCL) using numerical model of one dimensional. Then the results of this model is confirmed with experimental and benchmark results. Variations with several geometric parameters like loop diameter, riser length, and heater length and operating conditions like heater inlet enthalpy, pressure, friction factor, and inlet and exit loss coefficient on steady-state performance are investigated for various orientations like HHHC, HHVC, VHVC and VHHC of the heater and cooler. The chances of existing static instability (Ledinegg excursion) has been investigated, which reveals that it can arise only in a low inlet enthalpy condition, far from the suggested various orientations of heater and cooler. |
| first_indexed | 2024-12-14T22:54:57Z |
| format | Article |
| id | doaj.art-395544d0185e4b689a8dabd73b339f25 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-14T22:54:57Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-395544d0185e4b689a8dabd73b339f252022-12-21T22:44:37ZengElsevierNuclear Engineering and Technology1738-57332021-11-01531135973611Numerical investigation of steady state characteristics and stability of supercritical water natural circulation loop of a heater and cooler arrangementsSantosh Kumar Rai0Pardeep Kumar1Vinay Panwar2Department of Mechanical Engineering, SRM Institute of Science and Technology, NCR Campus, Ghaziabad, U.P. - 201204, IndiaDepartment of Mechanical Engineering, Meerut Institute of Engineering and Technology, Meerut, U.P. - 250005, India; Corresponding author.Mechanical Engineering Department, Netaji Subhas University of Technology, Dwarka, New Delhi 110078, IndiaThe present paper studies the thermal-hydraulic behaviour of the rectangular supercritical natural circulation loop (SCNCL) using numerical model of one dimensional. Then the results of this model is confirmed with experimental and benchmark results. Variations with several geometric parameters like loop diameter, riser length, and heater length and operating conditions like heater inlet enthalpy, pressure, friction factor, and inlet and exit loss coefficient on steady-state performance are investigated for various orientations like HHHC, HHVC, VHVC and VHHC of the heater and cooler. The chances of existing static instability (Ledinegg excursion) has been investigated, which reveals that it can arise only in a low inlet enthalpy condition, far from the suggested various orientations of heater and cooler.http://www.sciencedirect.com/science/article/pii/S1738573321003004Supercritical water reactorHeater and cooler orientationNatural circulation loopSteady stateLedinegg instability |
| spellingShingle | Santosh Kumar Rai Pardeep Kumar Vinay Panwar Numerical investigation of steady state characteristics and stability of supercritical water natural circulation loop of a heater and cooler arrangements Nuclear Engineering and Technology Supercritical water reactor Heater and cooler orientation Natural circulation loop Steady state Ledinegg instability |
| title | Numerical investigation of steady state characteristics and stability of supercritical water natural circulation loop of a heater and cooler arrangements |
| title_full | Numerical investigation of steady state characteristics and stability of supercritical water natural circulation loop of a heater and cooler arrangements |
| title_fullStr | Numerical investigation of steady state characteristics and stability of supercritical water natural circulation loop of a heater and cooler arrangements |
| title_full_unstemmed | Numerical investigation of steady state characteristics and stability of supercritical water natural circulation loop of a heater and cooler arrangements |
| title_short | Numerical investigation of steady state characteristics and stability of supercritical water natural circulation loop of a heater and cooler arrangements |
| title_sort | numerical investigation of steady state characteristics and stability of supercritical water natural circulation loop of a heater and cooler arrangements |
| topic | Supercritical water reactor Heater and cooler orientation Natural circulation loop Steady state Ledinegg instability |
| url | http://www.sciencedirect.com/science/article/pii/S1738573321003004 |
| work_keys_str_mv | AT santoshkumarrai numericalinvestigationofsteadystatecharacteristicsandstabilityofsupercriticalwaternaturalcirculationloopofaheaterandcoolerarrangements AT pardeepkumar numericalinvestigationofsteadystatecharacteristicsandstabilityofsupercriticalwaternaturalcirculationloopofaheaterandcoolerarrangements AT vinaypanwar numericalinvestigationofsteadystatecharacteristicsandstabilityofsupercriticalwaternaturalcirculationloopofaheaterandcoolerarrangements |