Description
Introduction to modes of heat transfer; One-dimensional steady-state conduction; Un-steady state conduction, Lumped heat capacity systems; Introduction to convection; Hydro-dynamic and thermal boundary layers; Laminar and turbulent boundary layers, convection in external and internal flows; Empirical relations for forced convection heat transfer; Heat exchangers.
Outline
- Introduction to heat transfer in various modes: conduction, convection and radiation.
- Introduction to conduction, conduction rate equation, thermal conductivity, heat diffusion equation, Boundary and initial conditions.
- 1-D Unsteady state conduction, Lumped capacity systems.
- Introduction to convection. Convection boundary layer, Laminar and turbulent flow, Convection transfer equation Velocity and thermal boundary conditions, Boundary layer similarity.
- External flow; Flat-plate, unheated starting length, Cylinder in crossflow; Banks of tubes.
- Internal flow; Fully developed region, Energy balance equation, Heat transfer coefficient in laminar and turbulent flow, Non-circular tubes, Heat transfer enhancement.
- Heat exchangers; Heat exchanger types, Overall H.T.coefficient, Logarithmic Mean Temperature Difference (LMTD)
