1 / 3

Memo #1 Project design conditions

Memo #1 Project design conditions. Objective : To determine whether replacement of standard oxide fuel in a large BWR by hydride fuel will result in a higher power Conditions Reference core: see tables in Lecture #2 Rod pitch and rod OD are variables, but must fit in existing duct

kuame-ochoa
Télécharger la présentation

Memo #1 Project design conditions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Memo #1 Project design conditions • Objective: To determine whether replacement of standard oxide fuel in a large BWR by hydride fuel will result in a higher power • Conditions • Reference core: see tables in Lecture #2 • Rod pitch and rod OD are variables, but must fit in existing duct • The number of rods in bundle is a variable • The hydride fueled fuel assembly has no water rods • Cladding thickness and initial fuel-cladding gap are variables, but can be chosen around the values in Figs 2.7 and 2.8 of NUREG – 1754 • enrichment of hydride fuel not to exceed 20%; oxide  5%

  2. For calculating the thermal conductivity of hydride fuel use: kU = 0.28 W/cm-K (dispersed phase); kZrH = 0.18 W/cm-K (continuous phase) • Burnup goal: Total energy output equivalent to 60 MWd/kgU in oxide design • no refueling • LHR distribution (pending neutronic analysis): where  = r/Rcore -1/2 < z/L < 1/2 • liquid-metal bond can be used in hydride design; He bond in oxide

  3. Inlet nozzle orificing: - none (same flow rate to all bundles) - to produce the same enthalpy rise for all bundles • Constraint on outlet quality: 0.23 • maximum pressure drop over core: 200 kPa • main T-H constraint: Critical power ratio (CPR) • fuel composition: 21 vol. % U metal in ZrH1.6; or 45 wt % U

More Related