A double-pane window has two large vertical parallel T-50 C glass that are maintained at 50°C and 20°C, respectively. Th

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A Double Pane Window Has Two Large Vertical Parallel T 50 C Glass That Are Maintained At 50 C And 20 C Respectively Th 1 (79.29 KiB) Viewed 12 times

A double-pane window has two large vertical parallel T-50 C glass that are maintained at 50°C and 20°C, respectively. The movement of the air in the space between the two surfaces causes convective heat transfer. The convective heat transfer coefficient he (W/m²K) is given by hc = 0.95(T₁-T₂)¹/³ Qconv where T₁ (K) and T₂ (K) are the temperatures of the surfaces. Calculate, (i) the convective heat transfer rate between the surfaces, and (ii) the external energy input rate to the two plates. T-20 C