Thermodynamics HW Solutions 171

Thermodynamics HW Solutions 171 - R_ins=(L_ins*Convert(cm...

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Chapter 3 Steady Heat Conduction 3-32 "GIVEN" A=2*1.5 "[m^2]" T_s=80 "[C]" T_infinity=30 "[C]" h=10 "[W/m^2-C]" "k_ins=0.038 [W/m-C], parameter to be varied" f_reduce=0.90 "ANALYSIS" Q_dot_old=h*A*(T_s-T_infinity) Q_dot_new=(1-f_reduce)*Q_dot_old Q_dot_new=(T_s-T_infinity)/R_total R_total=R_conv+R_ins R_conv=1/(h*A)
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Unformatted text preview: R_ins=(L_ins*Convert(cm, m))/(k_ins*A) "L_ins is in cm" k ins [W/m.C] L ins [cm] 0.02 1.8 0.025 2.25 0.03 2.7 0.035 3.15 0.04 3.6 0.045 4.05 0.05 4.5 0.055 4.95 0.06 5.4 0.065 5.85 0.07 6.3 0.075 6.75 0.08 7.2 0.02 0.03 0.04 0.05 0.06 0.07 0.08 1 2 3 4 5 6 7 8 k ins [W/m-C] L ins [cm] 3-14...
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