Thermal Conductivity Material Science HW4 I D

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Presentation transcript:

Thermal Conductivity Material Science HW4 I D 2009012118 2012011412 Name Yoon Dong Hwan Nam Seung Hye Mechanical Engineering GNU 1

What is Thermal Conductivity? ● Definition Thermal Conductivity [|θ3:rməl kɑ̀ndʌktívəti] properties that indicated the size of thermal conduction. [W/mk] Thermal Thermal breeder Thermal capacity Thermal conductivity mal efficiency mal equilibrium

What is Thermal Conductivity? Heat molecule Low Temperature High Temperature Heat transfer occurs at a higher rate across materials of high thermal conductivity than across materials of low thermal conductivity

What is Thermal Conductivity? T=time S d T1 Th (Th-T1)xSxT Heat transfer occurs at a higher rate across materials of high thermal conductivity than across materials of low thermal conductivity Q= k d

High vs Low (Q[W/mK]) Mix(배합) 900~2300 400 318 237 12~45 1.7 1.1 0.6 0.025

THE END. Thank you everything. 나는 승혜