O 113ll 3ullthe plate:a) Laminar Flow:Nu = 0.664RE/2Pr3a) Turbulent Flow:Nu = 0.037ResPr3Numerical Exercise1. A flat plate is supplied with a constant heat flux of 100 [W/m2]from bottom. The plate has 0.5m2 area and is kept in a room withambient temperature 20°C. If it has a steady state temperature of32°C what is the heat transfer coefficient?Ta = 293[K]4 = h(T, - Ta)T, = 305[K]q = 100'[W/m2]Numerical Exercise2. The air has the following properties at 27C: Density = 1.18[kg.m-3], Dynamic Viscosity = 1.85X105 [kg.m1.s'], SpecificHeat capacity, Cp = 1.005 [kJ.kg!.K-1. If the thermal conductivityof air at that temperature is = 0.026 [W.m1.K), what is theaverage Nusselt Number over a flat plate of dimension 10 cm X10 cm when air is flowing parallel to its surface with a speed 1[ms ']?pVL.Re =V = 1 [m/s]pCpPr =Le = 0.1 [m]Nu = 0.664Režpr3

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Numerical Exercise 1. A flat plate is supplied with a constant heat flux of 100 [W/m2] from bottom. The plate has 0.5m2 area and is kept in a room with ambient temperature 20°C. If it has a steady state temperature of 32°C what is the heat transfer coefficient? Ta = 293[K] ģ = h(T, - Ta) %3D T, = 305[K] %3D q = 100 [W/m²] %3D Numerical Exercise 2. The air has the following properties at 27C: Density 1.18 [kg.m-3], Dynamic Viscosity i.85X105 [kg.m'.s'], Specific Heat capacity, Cp = 1.005 [kJ.kg'.K-]. If the thermal conductivity of air at that temperature is 1 = 0.026 [W.m-1.K), what is the average Nusselt Number over a flat plate of dimension 10 cm X 10 cm when air is flowing parallel to its surface with a speed 1 [ms ']? V = 1 [m/s] Re pCp Pr = Le = 0.1 [m] Nu = 0.664Režpr3

Numerical Exercise 1. A flat plate is supplied with a constant heat flux of 100 [W/m2] from bottom. The plate has 0.5m2 area and is kept in a room with ambient temperature 20°C. If it has a steady state temperature of 32°C what is the heat transfer coefficient? Ta = 293[K] ģ = h(T, - Ta) %3D T, = 305[K] %3D q = 100 [W/m²] %3D Numerical Exercise 2. The air has the following properties at 27C: Density 1.18 [kg.m-3], Dynamic Viscosity i.85X105 [kg.m'.s'], Specific Heat capacity, Cp = 1.005 [kJ.kg'.K-]. If the thermal conductivity of air at that temperature is 1 = 0.026 [W.m-1.K), what is the average Nusselt Number over a flat plate of dimension 10 cm X 10 cm when air is flowing parallel to its surface with a speed 1 [ms ']? V = 1 [m/s] Re pCp Pr = Le = 0.1 [m] Nu = 0.664Režpr3

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.36P

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