plz solve it within 30-40 mins I'll give you multiple upvote(hand written) A straight triangular fin of length L and thickness t at the base is madeof porous material of porosity P. The fin exchanges heat by convectionalong its surface. The heat transfer coefficient is h and the ambienttemperature is To. The base is maintained at temperature To. Coolant attemperature T. and flow rate per unit surface area m/A flows normal tothe surface. The coolant specific heat is Cpf and the thermal conductivityof the solid-fluid matrix is k. Determine the ratio of the heat transferfrom the porous fin to that of a solid fin.16.17The

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A straight triangular fin of length L and thickness t at the base is made of porous material of porosity P. The fin exchanges heat by convection along its surface. The heat transfer coefficient is h and the ambient temperature is T. The base is maintained at temperature To. Coolant at temperature T, and flow rate per unit surface area mi/A flows normal to the surface. The coolant specific heat is Cpf and the thermal conductivity of the solid-fluid matrix is k. Determine the ratio of the heat transfer from the porous fin to that of a solid fin. 16. 00 17 Th

A straight triangular fin of length L and thickness t at the base is made of porous material of porosity P. The fin exchanges heat by convection along its surface. The heat transfer coefficient is h and the ambient temperature is T. The base is maintained at temperature To. Coolant at temperature T, and flow rate per unit surface area mi/A flows normal to the surface. The coolant specific heat is Cpf and the thermal conductivity of the solid-fluid matrix is k. Determine the ratio of the heat transfer from the porous fin to that of a solid fin. 16. 00 17 Th

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.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.29P

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1.21 In an experimental set up in a laboratory, a long cylinder with a 5-cm diameter, and an electrical resistance heater inside its entire length is cooled with water flowing crosswise over the cylinder at and a velocity of 0.8 m/s. For these flow conditions, 20 kW/m of power is required to maintain a uniform temperature of at the surface of the cylinder. When water is not available, air at is used with a velocity of 10 m/s to maintain the same surface temperature. However, in this case, the cylinder surface heat dissipation rate is reduced to 400 W/m. Calculate the convection heat transfer coefficients for both water and air, and comment on the reason for the differences in the values.
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