Phase stability, thermal properties and microstructure characteristics of U-15 wt.% Cr alloy

Rameshkumar, Santhosh; Raju, S.; Mythili, R.; Saroja, S.

doi:10.1016/j.jallcom.2018.07.356

Cited by 2 publications

(2 citation statements)

References 32 publications

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“…By measuring this timetemperature (T) change, the enthalpy increments were obtained by time integration of the instantaneous heat flow using Eq. 1, as reported by Rameshkumar et al [17]. The average of the values of the individual sample drops was calculated.…”

Section: Thermoanalytical Analysismentioning

confidence: 98%

Microstructural and thermoanalytical characterization of super duplex stainless steel - UNS S32760-F55

Khoshnaw

Marinescu

Sofronia

et al. 2021

Materials Today Communications

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Section: Thermoanalytical Analysismentioning

confidence: 98%

Microstructural and thermoanalytical characterization of super duplex stainless steel - UNS S32760-F55

Khoshnaw

Marinescu

Sofronia

et al. 2021

Materials Today Communications

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“…This eutectic is characterised by a high thermal conductivity 30.54 Wm −1 K −1 and a high actinide concentration, which results in a higher performance and a better neutron economy (lower moderation, lower enrichment, smaller absorption, the increase of the neutron number). For the specific simulations, we applied the uranium‐chromium eutectic fuel with the weight fractions: 54 Cr − 4.78 % , 235 U − 12.80 % , 238 U − 82.42 % , giving liquid metal eutectic fuel at the lowest possible melting temperature of 860° C (cf. Figure , p. 426 of Venkatraman et al).…”

Section: Reactor Design Descriptionmentioning

confidence: 99%

Determination of the liquid eutectic metal fuel dual fluid reactor (DFRm) design – steady state calculations

et al. 2019

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Summary The dual fluid reactor (DFR) is a novel concept of a very high‐temperature (fast) reactor that falls off the classification of generation 4 international forum (GIF). DFR makes best of the two previous designs: molten salt reactor (MSR) and lead‐cooled fast reactor (LFR). In this paper, we present a new reactor design Dual Fluid Reactor metallic (DFRm) with the liquid eutectic U‐Cr metal fuel composition and the lead coolant of which general idea was patented recently. By performing the first steady state neutronic calculations for such a reactor (the neutron flux density as a function of energy, the burnup, the effective multiplication factor/reactivity), we show that this 250‐MWth reactor is critical, and that it can operate almost 20 years without refuelling. We also optimise the geometry (reflector thickness, fuel tubes pin pitch) with respect to the multiplication factor. The optimisation together with some other opportunities for the liquid metal fuel design (eg, the use of electromagnetic pumps to circulate the medium) allows DFRm to be of a small size. This rises economy of the construction as expressed nicely in terms of the energy return on invested (EROI) factor, which is even higher than for the molten salt fuel design (DFRs). Last but not least, we show that DFRm has all the (fuel, coolant, reflector) temperature coefficients negative, which is an important factor of the passive safety.

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Phase stability, thermal properties and microstructure characteristics of U-15 wt.% Cr alloy

Cited by 2 publications

References 32 publications

Microstructural and thermoanalytical characterization of super duplex stainless steel - UNS S32760-F55

Microstructural and thermoanalytical characterization of super duplex stainless steel - UNS S32760-F55

Determination of the liquid eutectic metal fuel dual fluid reactor (DFRm) design – steady state calculations

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Phase stability, thermal properties and microstructure characteristics of U-15 wt.% Cr alloy

Cited by 2 publications

References 32 publications

Microstructural and thermoanalytical characterization of super duplex stainless steel - UNS S32760-F55

Microstructural and thermoanalytical characterization of super duplex stainless steel - UNS S32760-F55

Determination of the liquid eutectic metal fuel dual fluid reactor (DFRm) design – steady state calculations

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Phase stability, thermal properties and microstructure characteristics of U-15 wt.% Cr alloy