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RELAP5 Model Benchmark for Thermal Performance of DRACS Test Facilities

Lin, Hsun-Chia
http://orcid.org/0000-0003-4186-2646
http://rave.ohiolink.edu/etdc/view?acc_num=osu1462889408

Abstract Details

2016, Master of Science, Ohio State University, Nuclear Engineering.
Direct Reactor Auxiliary Cooling System (DRACS), a passive safety system proposed for Fluoride-salt-cooled High-temperature Reactors (FHRs), is driven by natural convection/circulation to remove the decay heat during accidents. Two test facilities were designed and built following a scaling analysis at The Ohio State University to test the thermal performance of the DRACS, including a low-temperature DRACS test facility (LTDF) and a high-temperature DRACS test facility (HTDF). RELAP5 MOD 4.0 is utilized to model the DRACS thermal performance and predict the heat removal capability of the LTDF and HTDF. The code results are benchmarked with the experimental data obtained from the LTDF, which uses water as a surrogate for both primary and secondary fluids in DRACS. Two transient scenarios have been investigated, including a startup scenario and a pump trip scenario. Comparisons between the experimental data and simulation results from the RELAP5 show good agreement. The HTDF uses FLiNaK and KF-ZrF4, respectively, as the working fluids for the scaled down DRACS primary and secondary loops. Fluid properties of FLiNaK and KF-ZrF4 have been implemented into the RELAP5 code. Startup and pump trip scenarios in the HTDF are also simulated by the code.
Xiaodong Sun (Advisor)
Tunc Aldemir (Committee Member)
117 p.
Nuclear Engineering
DRACS, FHR, RELAP5, AHTR

Recommended Citations

Citations

  • Lin, H.-C. (2016). RELAP5 Model Benchmark for Thermal Performance of DRACS Test Facilities [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462889408

    APA Style (7th edition)

  • Lin, Hsun-Chia. RELAP5 Model Benchmark for Thermal Performance of DRACS Test Facilities . 2016. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1462889408.

    MLA Style (8th edition)

  • Lin, Hsun-Chia. "RELAP5 Model Benchmark for Thermal Performance of DRACS Test Facilities ." Master's thesis, Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462889408

    Chicago Manual of Style (17th edition)

osu1462889408
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© 2016, some rights reserved.Creative Commons License RELAP5 Model Benchmark for Thermal Performance of DRACS Test Facilities by Hsun-Chia Lin is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by The Ohio State University and OhioLINK.