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LUND UNIVERSITY LIBRARIES

Cold Moderator Hydrogen Flow and Cooling

Pucilowski, Mateusz LU and Wenaas Smeby, Paal LU (2014) MVK920 20141
Department of Energy Sciences
Abstract
In this master thesis, cold moderator flow concepts have been developed on behalf of the European Spallation Source, ESS AB in Lund. The function of the cold moderator is to slow down neutrons, generated in the spallation process. The moderation is done in liquid para-hydrogen at 15 bar and 17 K. Moderating neutrons is the primary function of the liquid hydrogen, but it also removes nuclear heat load, which is deposited in the hydrogen and the moderator aluminum vessel. The flow in the cold moderator has to therefore meet requirements for the cooling performance and limit pressure losses. In order to analyze and develop the flow in the cold moderator, commercial CFD and structural analysis codes has been used.
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author
Pucilowski, Mateusz LU and Wenaas Smeby, Paal LU
supervisor
organization
course
MVK920 20141
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Liquid Hydrogen, Cryogenic Liquid, Conjugate Heat Transfer
language
English
id
4857885
date added to LUP
2015-02-26 13:51:12
date last changed
2015-02-26 13:51:12
@misc{4857885,
  abstract     = {{In this master thesis, cold moderator flow concepts have been developed on behalf of the European Spallation Source, ESS AB in Lund. The function of the cold moderator is to slow down neutrons, generated in the spallation process. The moderation is done in liquid para-hydrogen at 15 bar and 17 K. Moderating neutrons is the primary function of the liquid hydrogen, but it also removes nuclear heat load, which is deposited in the hydrogen and the moderator aluminum vessel. The flow in the cold moderator has to therefore meet requirements for the cooling performance and limit pressure losses. In order to analyze and develop the flow in the cold moderator, commercial CFD and structural analysis codes has been used.}},
  author       = {{Pucilowski, Mateusz and Wenaas Smeby, Paal}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Cold Moderator Hydrogen Flow and Cooling}},
  year         = {{2014}},
}