This course introduces you to a thorough understanding of convective heat transfer by focusing on laminar and turbulent boundary layers, thermal and velocity profiles, and the derivation and application of convective heat transfer coefficients between fluids and solid surfaces in engineering systems. The course also introduces you to heat transfer in ducts and pipes, including the analysis of fully developed internal flow, pressure losses, friction effects, and heat transfer rates. Additionally, it addresses natural convection phenomena, governed by buoyancy effects and temperature-driven fluid motion in practical applications. Finally, it introduces you to heat exchanger performance analysis using the LMTD and NTU methods, radial heat transfer in cylindrical systems, radiative heat transfer involving black and grey bodies, and key energy conversion systems such as power plant boilers, turbines, generators, and transformers, including power loads and power factor considerations in thermal engineering applications.
At the end of this course, you should be able to:
CLO1. Describe laminar and turbulent convection boundary layers and their influence on heat transfer.
CLO2. Solve convection heat transfer problems in internal flows such as ducts and pipes.
CLO3. Analyze heat exchanger performance using the LMTD and NTU methods.
CLO4. Evaluate power plant thermal systems including boilers, turbines, generators, and transformers.
Convection Heat Transfer:Boundary Layers (Laminar/Turbulent): laminar and turbulent boundary layers, thermal and velocity profiles, heat transfer processes. Heat Transfer Coefficients; convective heat transfer between a fluid and a surface, cooling and heating systems, engineering applications, Nusselt, Prandtl, Stanton, and Grashoff Numbers, dimensionless numbers are critical in analyzing heat transfer, Duct/Pipe Flow (Fully Developed Flow): velocity and temperature profiles, pressure drops and heat transfer rates in piping systems. Analysis of Flow in Ducts and Pipes, fluid dynamics and heat transfer principles; flow in ducts and pipes, calculation friction losses, flow rates, and thermal gradients, Natural Convection, heat transfer, temperature gradients in the fluid. Heat Exchanger Analysis: Heat exchanger performance; Log Mean Temperature Difference (LMTD) and the Number of Transfer Units (NTU) methods, counter-flow, parallel flow, and crossflow. Radial Heat Transfer: Laws; Fourier's law, and Surfaces, cylindrical heat exchangers and insulated pipes, Black and Grey Body Radiation, Radiative heat transfer: emission and absorption of thermal radiation, black bodies and grey bodies emissivities, Power Plant boilers: types; fire-tube, water-tube, Installation,Components, and Combustion Equipment, Energy, Power, Power Loads, Power Factor, Power Rates and Components; burners, combustion equipment, turbines, generators, and transformers