Conduction_Analysis_Dimensional_Analysis_and_Fin_Design.pptx

HMT

1. Conduction Analysis, Dimensional Analysis, and Fin Design A Comprehensive Overview Md. Helal Hossain World University of Bangladesh, Department of Mechanical Engineering Date

2. Introduction Overview of Heat Conduction - Heat conduction is the transfer of heat through a material without the movement of the material itself. Importance of Dimensional Analysis - Dimensional analysis helps in simplifying physical relationships by reducing the number of variables. - It aids in the understanding and solving of complex engineering problems. Role of Fins in Thermal Systems - Fins are used to increase the surface area for heat transfer, enhancing the efficiency of thermal systems.

3. Conduction Analysis Definition of Conduction - Conduction is the process by which heat energy is transmitted through collisions between neighboring molecules. Fourier's Law of Heat Conduction - q = -k dT/dx - q: Heat flux (W/m²) - k: Thermal conductivity (W/m·K) - dT/dx: Temperature gradient (K/m) Thermal Conductivity - Thermal conductivity is a material property that indicates its ability to conduct heat. Steady-State and Transient Conduction - Steady-state: Temperature does not change with time. - Transient: Temperature changes with time.