The one-dimensional plane wall of Figure 3.1 is of thickness L = 75 mm and thermal conductivity k = 5W/m · K. The fluid temperatures are T_∞,1 = 200°C and T_∞,2 = 100°C, respectively. Using the minimum and maximum typical values of the convection heat transfer coefficients listed in Table 1.1, determine the minimum and maximum steady-state heat fluxes through the wall for 

(i) Fee convection in gases, .

(ii) Free convection in liquids, 

(iii) Forced convection in gases, 

(iv) Forced convection in liquids, and 

(v) Convection with phase change.

Transcribed Image Text:

(a) T Hot fluid Th₁ 9x T₁1 T₂1 1_1 omo h₂A ΚΑ T₁,2 x=L T₂2 +9₂ h₂A Toz 111 Cold fluid T_zh₂ T_2