SAMPLE PROBLEM MATRA Input Preparation

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Presentation transcript:

SAMPLE PROBLEM MATRA Input Preparation

SAMPLE PROBLEM – GE 3X3 2-PHASE FLOW TEST BUNDLE Cross section geometry of TS Axial geometry and spacer grids Test information Parameter Value Heated length, inch Rod diameter, inch Rod pitch, inch Rod-to-wall gap, inch Radial power distribution Axial power distribution Pressure loss coefficient - Spacer grid form loss - Rod friction factor Pressure, psia TS inlet enthalpy, Btu/lbm TS inlet mass flux, Mlb/hr-ft2 TS average heat flux, MBtu/hr-ft2 72 0.570 0.738 0.135 Uniform 1.0 0.184 Re-0.2 1000 392.7 0.53 0.225

INPUT CARD DESCRIPTION Requirements of MATRA Input Cards and Card Groups Group No. Description Case First Subsequent – Initial card Required Not required Case control card 1 Fluid properties Optional 2 Friction factor, heat transfer coefficient, and two-phase flow correlations 3 Axial heat flux distribution 4 Channel layout and dimensions 5 Channel area variation 6 Gap spacing variation 7 Wire wrap and grid spacer information 8 Rod layout, dimensions, and properties 9 Calculation control 10 Lateral transport models 11 Operating conditions and transient forcing functions 12 Output display options

INITIAL & CASE CONTROL CARD

CARD-1: FLUID PROPERTY

CARD-2: FRICTION, HTC, TWO-PHASE FLOW CORRELATIONS

CARD-3: AXIAL HEAT FLUX DISTRIBUTION Ex) cosine distribution

CARD-4: CHANNEL LAYOUT AND DIMENSION AC (inch2) PW (inch) PH (inch) Ch.-1 0.0391 0.558 0.224 Ch.-2 0.1824 1.633 0.895 Ch.-3 0.1447

CARD-7: GRID SPACER INFORMATION

CARD-8: ROD LAYOUT, DIMENSION, AND PROPERTY

CARD-9: CALCULATION CONTROL

CARD-10: LATERAL TRANSPORT MODEL

CARD-11: OPERATING CONDITION & TRANSIENT FORCING FUNCTIONS

CARD-12: OUTPUT DISPLAY OPTION

MATRA INPUT FOR GE 3X3 TEST BUNDLE

SAMPLE PROBLEM MATRA Output

ITERATION RESULTS

CHANNEL RESULTS – CHANNEL EXIT SUMMARY

CHANNEL RESULTS – BUNDLE AVERAGE

CHANNEL RESULTS – FOR EACH CHANNEL

CROSSFLOW RESULTS

ROD RESULTS Results when fuel temperature calculation option was selected (Card 8, N3≠0)

CHF SUMMARY RESULTS

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