MECH3400 Lecture Notes - Lecture 1: Heat Transfer Coefficient, Heat Transfer, Thermal Resistance
Document Summary
General steps to solving questions: express heat conduction equation by integrating differential equation accordingly, find arbitrary constants c1 and c2, solve for question using formed equation. Eg heat transfer coefficient h or surface temperature t. General steps to solving questions: determine resistance using resistance equation, find heat transfer rate, q. Infinitely long fine and adiabatic fin tip: apply fin equation for heat transfer rate, express m, find area, as, solve for heat transfer rate, q, determine fin effectiveness, . Assumptions: steady operating conditions exists, convection heat transfer coefficient is constant over entire surface, thermal properties are constant, biot number bi < 0. 1 so lumped system analysis is applicable. (to be verified. ) General steps to solving questions: determine characteristic length lc, find bi number and determine if it is < 0. 1, solve for temperature using b if lumped system analysis is applicable.
