Example 10.7-1 Error in Thermocouple Measurement > restart; > N:=(h,L,k,B)->sqrt(h*L^2/(k*B)); eq. 10.7-8 > inch:=ft/12.; > N1:=N(120*Btu/(hr*ft^2*F),0.2*ft,60*Btu/(hr*ft*F),0.08*inch); > Tw:=350*F; > Theta:=zeta->(T(zeta)-Ta)/(Tw-Ta); Eq. 10.7-6 > eq:=Theta(1)=cosh(0)/cosh(N1); Eq. 10.7-13 > T(1):=500*F; This is what the thermocouple reads.
> solve(eq,Ta); This is the real air temperature.