Consider a 1 nominal pipe (0D=3.340 cm) covered with kapok insulation (K=0.035 W/m.K). Assume that the outside pipe wall temperature is 200?C and that the insulation covering the pipe transfers heat to ambient air at 20?C, with hc=1.7 W/(m2.K). We have not stated an insulation thickness but instead will allow the thickness to vary from 0 (no insulation) to 2.5 cm. A sketch and thermal circuit for the system are shown in Figure 4. Examine how the effect of insulation thickness affects the heat transfer rate.

Transcribed Image Text:

Insulation 74 7 Pipe D₂ Pipe 00-D, T₁ T₂ inform R₂ Insulation 74 7 Pipe D₂ Pipe 00-D, T₁ T₂ inform R₂

Answer rating: 100% (QA)

OD 334cm K insul 0035 Wmk T 1 200C T 20C h c 17 Wm 2 k ... View the full answer