ConvectionCoolant_Part2_web

ConvectionCoolant_Part2_web - ENU 4134 Convection to...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ENU 4134 Convection to Coolant and Full Single-Channel Analysis Part II D. Schubring November 13, 2009 (Driving Towards) Single-Channel Analysis I Conduction in fuel 1+ I Gap conductance 1 I Conduction in cladding << 1 I Convection to coolant 2-3 Included in these final notes (in several parts) is the full single-channel analysis problem Convection to Coolant I General equation for T co- T m I Single-phase coolant, constant properties & heat transfer coefficient (analytical solutions) I Single-phase coolant, variable properties & heat transfer coefficient (numerical solution) I Two-phase coolant I Miscellanea I Engineering judgment and single-channel analysis In this set of notes (part 2), well develop a simple numerical scheme for single-channel analysis (single-phase or two-phase coolant). Outline of Numerical Scheme I Divide channel axially into a sufficient number of control volumes. I Start with entrance conditions and march through the control volumes. I Perform an energy balance in the coolant flow in, flow out, heat flux out of rod to compute outlet temperature. I Compute a heat transfer coefficient and apply the equation for T co- T m to find T co . I Compute a mean cladding conductivity and apply the equation for T ci- T co to find T ci . I Compute a gap conductance and apply the equation for T fo- T ci to find T fo . I Compute a fuel mean conductivity and apply the equation for T m- T fo to find T m I Estimate P in the control volume. Opening Remarks T m , T co , T ci , T fo & T max will be found at the control volume boundaries . Some other parameters are computed at control volume centers . To use this numerical scheme, we need to know m , P m , in , and T m , in . If T m , out is given in lieu of m , another calculation (integration, potentially numerical integration) would need to be performed first to get m ....
View Full Document

This note was uploaded on 07/14/2011 for the course ENU 4133 taught by Professor Schubring during the Spring '11 term at University of Florida.

Page1 / 23

ConvectionCoolant_Part2_web - ENU 4134 Convection to...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online