Heat Transfer Analysis in Supercritical Hydrogen of Decoupled Poisoned Hydrogen Moderator with Non-Uniform Heat Source of Chinese Spallation Neutron Source

Jianfei Tong, Lingbo Zhu, Yiping Lu, Tianjiao Liang, Youlian Lu, Songlin Wang, Chaoju Yu, Shikui Dong and Heping Tan
Additional contact information
Jianfei Tong: School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Lingbo Zhu: Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Yiping Lu: Department of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150001, China
Tianjiao Liang: Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Youlian Lu: Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Songlin Wang: Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Chaoju Yu: Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Shikui Dong: School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Heping Tan: School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Energies, 2021, vol. 14, issue 15, 1-17

Abstract: The flow field distribution and thermal properties of supercritical hydrogen are crucial factors affecting the quality of neutrons output from spallation neutron source, which may contribute to the optimization design of the moderator. Several sensitivity studies on affecting heat transfer characteristics of liquid hydrogen inside a moderator were executed, and a choice was made to use a computational fluid dynamics method for numerical simulation. The sensitivity degree of factors affecting the heat transfer characteristics of liquid hydrogen are in sequence of inlet mass flow, beam power and operating pressure. Especially when the beam power is 500 kW (the temperature range of liquid hydrogen is about 20~30 K); where the effect of mass flow rate is remarkable, the cooling effect is best in the range of 60~90 g/s × 394 mm 2 . Meanwhile, the maximum temperature of liquid hydrogen is close to the bottom recirculation zone due to the influence of the flow field and the heat deposition distribution of the poisoned plate. The effect of variable pressure on the temperature of liquid hydrogen is not significant, whereas the sudden rise of wall temperature is observed near the large specific heat region of 15 bar.

Keywords: Chinese spallation neutron source; decoupled poisoned hydrogen moderator; non-uniform heat source; numerical simulation; supercritical pressure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/15/4547/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/15/4547/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:15:p:4547-:d:602650

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().