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Can hydrogen be the transportation fuel in an otherwise nuclear economy?
Let’s face it: The global economy should be powered primarily by nuclear power. And it probably will by the end of this century, with a still-significant assist from renewables and hydro. Once nuclear systems are dominant, the costs come down to where gas is now; and when carbon emissions are reduced to a small portion of their present state, it will become obvious that most other sources are only good in niche settings. I mean, why use small modular reactors to load-follow when they can just produce that power instead of buffering it?
A. Kumar, C. Sahraoui, S. Azam
Fusion Science and Technology | Volume 15 | Number 2 | March 1989 | Pages 1315-1323
Blanket Nucleonics Experiment | doi.org/10.13182/FST89-A39871
Articles are hosted by Taylor and Francis Online.
Under the ongoing experimental program of fusion neutronics at the LOTUS facility, a number of activation and tritium breeding measurements were recently completed. The presence of the Lithium Blanket Module (LBM) made a number of measurements also possible in it alone and in a number of more complex assemblies, incorporating it as one of the components. The foil activations were done in the following assemblies: (a) 6, 12 and 18 cm thick single Be slabs, (b) 5, 10 and 15 cm thick Pb slabs, (c) 27.7cm thick ThO2 slab, (d) 27.7cm ThO2 + 80cm thick LBM, (e) 5cm Pb + 27.7cm ThO2 + LBM, (f) 6cm Be + 27.7cm ThO2 + LBM. Only five activation reactions were measured : 90Zr(n,2n), 58Ni(n,2n), 93Nb(n,2n), 58Ni(n,p) and 115In(n,n′). The tritium breeding measurements were conducted in three assemblies : (i) LBM, (ii) 5cm Pb + LBM, (iii) 6cm Be + LBM. Both axial and off-axis measurements were made. All the experiments have been analyzed using the two dimensional discrete ordinates code DOT3.5 coupled to the first collision source evaluator GRTUNCL. The agreement between the measured and computed reaction rates is better than 10% for ThO2; it is not so good for others.