1. bookVolume 62 (2017): Issue 1 (March 2017)
Journal Details
License
Format
Journal
eISSN
1508-5791
First Published
25 Mar 2014
Publication timeframe
4 times per year
Languages
English
Open Access

Thermal-hydraulic analysis of LTS cables for the DEMO TF coil using simplified models

Published Online: 04 Mar 2017
Volume & Issue: Volume 62 (2017) - Issue 1 (March 2017)
Page range: 23 - 28
Received: 10 Jun 2016
Accepted: 08 Nov 2016
Journal Details
License
Format
Journal
eISSN
1508-5791
First Published
25 Mar 2014
Publication timeframe
4 times per year
Languages
English
Abstract

The conceptual design activities for the DEMOnstration reactor (DEMO) – the prototype fusion power plant – are conducted in Europe by the EUROfusion Consortium. In 2015, three design concepts of the DEMO toroidal field (TF) coil were proposed by Swiss Plasma Center (EPFL-SPC, PSI Villigen), Italian National Agency for New Technologies (ENEA Frascati), and Atomic Energy and Alternative Energies Commission (CEA Cadarache). The proposed conductor designs were subjected to complete mechanical, electromagnetic, and thermal-hydraulic analyses. The present study is focused on the thermal-hydraulic analysis of the candidate conductor designs using simplified models. It includes (a) hydraulic analysis, (b) heat removal analysis, and (c) assessment of the maximum temperature and the maximum pressure in each conductor during quench. The performed analysis, aimed at verification whether the proposed design concepts fulfil the established acceptance criteria, provides the information for further improvements of the coil and conductors design.

Keywords

1. Zani, L., Bayer, C. M., Biancolini, M. E., Bonifetto, R., Bruzzone, P., Brutti, C., Ciazynski, D., Coleman, M., Duran, I., Eisterer, M., Fietz, W. H., Gade, P. V., Gaio, E., Giorgetti, F., Goldacker, W., Gömöry, F., Granados, X., Heller, R., Hertout, P., Hoa, C., Kario, A., Lacroix, B., Lewandowska, M., Maistrello, A., Muzzi, L., Nijhuis, A., Nunio, F., Panin, A., Petrisor, T., Poncet, J.-M., Prokopec, R., Sanmarti Cardona, M., Savoldi, L., Schlachter, S. I., Sedlak, K., Stepanov, B., Tiseanu, I., Torre, A., Turtù, S., Vallcorba, R., Vojenciak, M., Weiss, K.-P., Wesche, R., Yagotintsev, K., & Zanino, R. (2016). Overview of progress on the EU DEMO reactor magnet system design. IEEE Trans. Appl. Supercond., 26(4), 4204505. DOI: 10.1109/TASC.2016.2536755.10.1109/TASC.2016.2536755Search in Google Scholar

2. Fietz, W. H., Barth, Ch., Drotziger, S., Goldacker, W., Heller, R., Schlachter, S. I., & Weiss, K.-P. (2013). Prospects of high temperature superconductors for fusion magnets and power applications. Fusion Eng. Des., 88, 440–445. DOI: 10.1016/j.fusengdes.2013.03.059.10.1016/j.fusengdes.2013.03.059Search in Google Scholar

3. Uglietti, D., Bykovsky, N., Wesche, R., & Bruzzone, P. (2015). Development of HTS conductors for fusion magnets. IEEE Trans. Appl. Supercond., 25(3), 4202106. DOI: 10.1109/TASC.2014.2364715.10.1109/TASC.2014.2364715Search in Google Scholar

4. Sedlak, K. (2015). TF conductor and WP#1 design based on 2015 reference. Report WPMAG-MCD-2.1-T01 RS02. (IDM reference: EFDA_D_2MHQQ5).Search in Google Scholar

5. Muzzi, L., Turtù, S., Fiamozzi Zignani, C., & Anemona, A. (2015). Design of 2015 TF Winding Pack Option 2 (WP#2) and of “ENEA” LTS cable. Report for WPMAG-MCD-2.1-T02 RS02. (IDM reference: EFDA_D_2LF3Z8).Search in Google Scholar

6. Ciazynski, D., & Torre, A. (2015). TF WP#3 design based on 2015 EUROfusion configuration. Report WPMAG-MCD 2.1-T003 RS03. (IDM reference: EFDA_D_2MDLUL).Search in Google Scholar

7. Lewandowska, M., & Sedlak, K. (2014). Thermal-hydraulic analysis of LTS cables for the DEMO TF coil. IEEE Trans. Appl. Supercond., 24(3), 4200305. DOI: 10.1109/TASC.2013.2281625.10.1109/TASC.2013.2281625Search in Google Scholar

8. Lewandowska, M., & Sedlak, K. (2016). Thermal-hydraulic analysis of the improved LTS conductor design concepts for the DEMO TF coil. Prz. Elektrotech., 92(4), 179–182. DOI: 10.15199/48.2016.04.39.10.15199/48.2016.04.39Search in Google Scholar

9. Lewandowska, M., Sedlak, K., & Zani, L. (2016). Thermal-hydraulic analysis of the low Tc superconductor (LTS) winding pack design concepts for the DEMO toroidal field (TF) coil. IEEE Trans. Appl. Supercond., 26(4), 4205305. DOI: 10.1109/TASC.2016.2542003.10.1109/TASC.2016.2542003Search in Google Scholar

10. Bagnasco, M., Bottura, L., & Lewandowska, M. (2010). Friction factor correlation for CICC’s based on a porous media analogy. Cryogenics, 50(11/12), 711–719. DOI: 10.1016/j.cryogenics.2010.06.016.10.1016/j.cryogenics.2010.06.016Search in Google Scholar

11. Lewandowska, M., & Bagnasco, M. (2011). Modified friction factor correlation for CICC’s based on a porous media analogy. Cryogenics, 51(9), 541–545. DOI: 10.1016/j.cryogenics.2011.07.003.10.1016/j.cryogenics.2011.07.003Search in Google Scholar

12. Shah, R. K., & Sekulić D. P. (2003). Fundamentals of heat exchanger design. New Jersey, USA: Wiley.10.1002/9780470172605Search in Google Scholar

13. Zanino, R., Santagati, P., & Savoldi, L. (2000). Friction factor correlation with application to the central cooling channel of Cable-in-Conduit superconductors for fusion magnets. IEEE Trans. Appl. Supercond., 10(1), 1066–1069.10.1109/77.828416Search in Google Scholar

14. Zanino, R., Giors, S., & Savoldi-Richard, L. (2007). CFD modelling of ITER cable-in-conduit superconductors. Part III: correlation for the central channel friction factor. In 21st International Cryogenic Engineering Conference (ICEC 21), 17–21 July 2006 (pp. 207–210).Search in Google Scholar

15. Vallcorba, R., Lacroix, B., Ciazynski, D., Torre, A., Nunio, F., Zani, L., Le Coz, Q., Lewandowska, M., & Coleman, M. (2016). Thermo-hydraulic analyses associated with a CEA design proposal for a DEMO TF conductor. Cryogenics, 80(Pt. 3), 317–324. DOI: 10.1016/j.cryogenics.2016.05.004.10.1016/j.cryogenics.2016.05.004Search in Google Scholar

16. Brighenti, A., Bonifetto, R., Savoldi, L., & Zanino, R. (2016). Preliminary thermal-hydraulic analysis of the performance of the ENEA updated WP during plasma burn. Report for WPMAG-MCD-2.2-T002 D002. (IDM reference: EFDA_D_2N28R4).Search in Google Scholar

17. Lacroix, B., & Vallcorba, R. (2015). Common approach for quench analyses. Report for WPMAG-MCD-2.2. (IDM reference: EFDA_D_2M6DW4).Search in Google Scholar

18. Bottura, L., Rosso, C., & Breschi, M. (2000). A general model for thermal, hydraulic and electric analysis of superconducting cables. Cryogenics, 40(8/10), 617–626. DOI: 10.1016/S0011-2275(01)00019-4.10.1016/S0011-2275(01)00019-4Search in Google Scholar

19. Savoldi Richard, L., Casella, F., Fiori, B., & Zanino, R. (2010). The 4C code for the cryogenic circuit conductor and coil modeling in ITER. Cryogenics, 50(3), 167–176. DOI: 10.1016/j.cryogenics.2009.07.008.10.1016/j.cryogenics.2009.07.008Search in Google Scholar

20. ITER. (2006). ITER Design Description Document. Magnets. Section 1: Engineering Description. ITER_D_22HV5L v2.2.Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo