Thermodynamics HW Solutions 310

Thermodynamics HW Solutions 310 - T [C] T L [C] 500 321.6...

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Chapter 4 Transient Heat Conduction 4-37 "!PROBLEM 4-37" "GIVEN" L=0.03/2 "[m]" T_i=25 "[C]" T_infinity=700 "[C], parameter to be varied" time=10 "[min], parameter to be varied" h=80 "[W/m^2-C]" "PROPERTIES" k=110 "[W/m-C]" alpha=33.9E-6 "[m^2/s]" "ANALYSIS" Bi=(h*L)/k "From Table 4-1, corresponding to this Bi number, we read" lambda_1=0.1039 A_1=1.0018 tau=(alpha*time*Convert(min, s))/L^2 (T_L-T_infinity)/(T_i-T_infinity)=A_1*exp(-lambda_1^2*tau)*Cos(lambda_1*L/L)
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Unformatted text preview: T [C] T L [C] 500 321.6 525 337.2 550 352.9 575 368.5 600 384.1 625 399.7 650 415.3 675 430.9 700 446.5 725 462.1 750 477.8 775 493.4 800 509 825 524.6 850 540.2 875 555.8 900 571.4 time [min] T L [C] 2 146.7 4 244.8 6 325.5 8 391.9 10 446.5 12 491.5 14 528.5 16 558.9 18 583.9 20 604.5 22 621.4 24 635.4 26 646.8 28 656.2 4-21...
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