memo 1 project design conditions
Download
Skip this Video
Download Presentation
Memo #1 Project design conditions

Loading in 2 Seconds...

play fullscreen
1 / 3

Memo #1 Project design conditions - PowerPoint PPT Presentation


  • 113 Views
  • Uploaded on

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

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Memo #1 Project design conditions' - kuame-ochoa


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
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
  • 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%
slide2

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
slide3
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
ad