Modelling of the tritium fuel cycle

Carlos MorenoCIEMAT

2nd EU-US DCLL Workshop University of California, Los Angeles, Nov. 14-15 th, 2014

2/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

Roadmap to DEMO

Fuel Cycle schema

FC requirements

FC libraries

Current Model

ISS model and validation

Conclusions

Summary

3/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

Roadmap to DEMO

Headline 6.6 in Roadmap The development of a fuel-cycle simulator is also foreseen to provide a full parametric description of a conceptual fuel cycle of DEMO with recycling option.

4/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

Fuel Cycle schema

5/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

Fuel Cycle schema

6/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

Fuel Cycle requirements

Dynamic (not only steady-state mode): transients, failures, accidents…Complete H, D, T database libraries.Process Optimisation/Sensitivity AnalysisIndustry support

7/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

Fuel Cycle libraries

8/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

Fuel Cycle Current Model

• 30 systems

• 30 tritium flow models

• User friendly interface

• Different pulsed scenarios

• Easy Input menus

• Exportable to an exec file (no license needed)

9/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

Fuel Cycle Current Model

• Tritium library available • Steady-state model (2014)• Strong interface with BB project

• Needs implementation and validation

10/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

ISS model and validation

• First Dynamic model of Fuel Cycle library since Breeding Blanket in EcosimPro.

• Isotopic Separation System

• Main component: Cryogenic Cryodistillation Column

11/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

ISS model and validation

• EcosimPro implementation

• H, D, T, properties database

• JET experiment validation

• End 2014 deadline

NAME TYPE DEFAULT DESCRIPTION UNITS

Mix SET_OF(TRITIUM.AllComponents) Molecular_Isot species to be distilled

n INTEGER 10 Number of equivalent stages

n_extr INTEGER 2 extraction stage

n_feed INTEGER 5 feed stage

NAME TYPE DEFAULT RANGE DESCRIPTION UNITS

Kya[n] REAL 0.1 Transference constant in each stage

P_heads REAL 1.3 Top pressure bar

S REAL 0.02 Column section m2

f_pack REAL 1 Packing dependant constant

pd REAL (1.4 - 1.35) / 10 Pressure drop in the column bar

z REAL 5.5 Column height m

12/12Carlos Moreno– “Modelling of the tritium fuel cycle”2nd EU-US DCLL Workshop. 14-15 Nov 2014. Los Angeles (CA), USA.

Conclusions

Main objective: complete development of a fuel cycle simulator at a detailedness reflecting the design stability of all involved actuators

Demonstration of EcoSimPro capabilities in dynamic mode

Integrate models and data of all systems (near future).

Final objective: continuous monitoring of sub-systems involved (Torus, divertor, ,…)