ambient at 25°C with  convective heat transfer coefficient of 50 W/m2 -K. It is proposed to apply the insulation of material having  thermal conductivity of 0.5 W/m-K. Calculate the heat loss for 2.5 mm, 7.5 mm and 15 mm thickness of  insulation over 1 m

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Q: 5 A double glazed window of 1.5 m² surface consists of two layers of glass (k = 0.78 W m-¹ K-¹) each…

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Q: A long, 150-mm-diameter cylindrical metal (k = 20 W/m-K, p = 7900 kg/m³, cp = 650 J/kg-K) billet is…

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Q: An aluminium panel, thickness 1.8 mm and initial temperature 293 K, is to be heat treated by…

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Q: A 1.0 m × 1.5 m double glazed window consists of two 4 mm thick glass (k = 0.78 W / m K) layers…

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Q: A long stainless-steel (AISI 316) steam pipe, with an inside diameter of 6.00 cm and an outside…

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Q: A pin fin of 2024-T6 aluminum has a length and diameter of 8.0 cm and 6.0 mm, respectively. The base…

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Q: Ql: Consider a copper ( k= 396 W/m K ) long cylindrical fin 0.25 cm in diameter that protrudes from…

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Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.