Fuel cycle impact

The assessment in this paper is necessary to demonstrate that sufficient decay heat conservatism is retained in the UNF-ST&DARDS bounding as-loaded spent fuel analysis methodology. This paper also demonstrates the time dependent impact of various parameters such as last cycle power on decay heat values.

25p vironald 15-12-2022 6 3   Download

A comparison between stochastic and deterministic depletion calculations based on a graphite-filled MOX fuel assembly configuration is presented in this paper. The infinite multiplication factors and isotope inventory changes as a function of burnup obtained by Monte Carlo method module SCALE/KENO and deterministic method module SCALE/NEWT are compared with those obtained by deterministic code HELIOS. The impact in calculation results by using different nuclear data library is also investigated.

10p trinhthamhodang9 10-12-2020 10 0   Download

The paper aimed to identify the environmental impact towards the consumption of biogas feeding into fuel cells for electricity generation. The result showed that in this modelling of system boundary, the greenhouse gas emissions were high due to large contributions from the transportation and storage processes. Hopefully, the outcome from this study could help future researchers or stakeholders in making decisions to design fuel cells for electricity generation with minimum environmental impact contribution.

5p nguyenxuankha_bevandan 13-08-2020 20 1   Download

In this paper, a simplified methodology for the design of targets is coupled with a method for the optimization of transmutation which takes into account both transmutation performances and fuel cycle impacts. The uncertainties and performances of this methodology are evaluated and shown to be sufficient to carry out scoping studies.

12p christabelhuynh 29-05-2020 10 2   Download

The recent credit crisis in the United States ushered in a new era of uncertainty. In some ways it was just another bubble in a long line of fi nancial manias. Like any other bubble, it was born out of an extended period of easy money that fueled prosperity, engendered speculation, and ended in a spectacular crash. In some very important ways, however, the lingering impacts are different than the bubbles of recent memory.

254p baobinh1311 25-09-2012 65 8   Download

To appropriately mitigate environmental impacts from transportation, it is necessary for decision makers to consider the life-cycle energy use and emissions. Most current decision-making relies on analysis at the tailpipe, ignoring vehicle production, infrastructure provision, and fuel production required for support. We present results of a comprehensive life-cycle energy, greenhouse gas emissions, and selected criteria air pollutant emissions inventory for automobiles, buses, trains, and airplanes in the US, including vehicles...

8p vantrungtran 01-02-2010 126 12   Download