Hybrid reactors: nuclear breeding or energy production?

Piera, Mireia and Lafuente Mazuecos, Antonio and Abánades Velasco, Alberto and Martínez-Val Peñalosa, José María (2010). Hybrid reactors: nuclear breeding or energy production?. In: "14th International Conference on Emerging Nuclear Systems (ICENES 2009)", 29/06/2010 - 03/07/2010, Ericeira, Portugal.

Description

Title: Hybrid reactors: nuclear breeding or energy production?
Author/s:
  • Piera, Mireia
  • Lafuente Mazuecos, Antonio
  • Abánades Velasco, Alberto
  • Martínez-Val Peñalosa, José María
Item Type: Presentation at Congress or Conference (Article)
Event Title: 14th International Conference on Emerging Nuclear Systems (ICENES 2009)
Event Dates: 29/06/2010 - 03/07/2010
Event Location: Ericeira, Portugal
Title of Book: Energy Conversion and Management. Proceedings of the 14th International Conference on Emerging Nuclear Systems (ICENES 2009)
Date: September 2010
Volume: 51, is
Subjects:
Freetext Keywords: Hybrid nuclear reactors; Neutron multiplication; Reactivity; Tritium breeding; Coolant selection
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética y Fluidomecánica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

After reviewing the long-standing tradition on hybrid research, an assessment model is presented in order to characterize the hybrid performance under different objectives. In hybrids, neutron multiplication in the subcritical blanket plays a major role, not only for energy production and nuclear breeding, but also for tritium breeding, which is fundamental requirement in fusion–fission hybrids. All three objectives are better achieved with high values of the neutron multiplication factor (k-eff) with the obvious and fundamental limitation that it cannot reach criticality under any event, particularly, in the case of a loss of coolant accident. This limitation will be very important in the selection of the coolant. Some general considerations will be proposed, as guidelines for assessing the hybrid potential in a given scenario. Those guidelines point out that hybrids can be of great interest for the future of nuclear energy in a framework of Sustainable Development, because they can contribute to the efficient exploitation of nuclear fuels, with very high safety features. Additionally, a proposal is presented on a blanket specially suited for fusion–fission hybrids, although this reactor concept is still under review, and new work is needed for identifying the most suitable blanket composition, which can vary depending on the main objective of the hybrid.

More information

Item ID: 8364
DC Identifier: http://oa.upm.es/8364/
OAI Identifier: oai:oa.upm.es:8364
Official URL: http://www.sciencedirect.com/science/journal/01968904
Deposited by: Memoria Investigacion
Deposited on: 29 Aug 2011 10:41
Last Modified: 18 Aug 2017 11:17
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