ConductionFuelCladding_web - ENU 4134 – Conduction in...

This preview shows pages 1–5. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ENU 4134 – Conduction in Fuel & Cladding D. Schubring October 27, 2010 Learning Objectives I 3-c Solve the equations for conduction in fuel and cladding and articulate assumptions/models used regarding fuel thermal conductivity I 5-b Use correlations and/or models to analyze problems in nuclear thermal hydraulics I 5-f Identify TH-related safety limits for light water reactor operation I 5-g Consider conservatism (or lack thereof) present in a model and evaluate implications of this for reactor safety analysis Nuclear Heat Transfer The heat from fission is primarily deposited in the fuel and must eventually be dissipated into the coolant. It passes through the following materials: I Fuel I Gap I Cladding I Clad-coolant interface What mechanisms of heat transfer dominate in each? Nuclear Heat Transfer (2) We will derive the following equations in the next few days: T co- T m = q 2 π R co htc (1) T ci- T co = q 2 π k c ln R co R ci (2) T fo- T ci = q 2 π R g htc g = q π ( R ci + R fo ) htc g (3) T max- T fo = q 4 π k f (4) Coupling the changing coolant temperature through the core ( i.e. , including the function dependence on z ), comparing q 00 to CHF limits, and consideration of subcooled boiling limits will be...
View Full Document

{[ snackBarMessage ]}

Page1 / 14

ConductionFuelCladding_web - ENU 4134 – Conduction in...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online