Thermal Engineering is a branch of mechanical engineering that focuses on the principles of heat transfer, thermodynamics, and fluid mechanics to design, analyze, and optimize systems involving thermal energy. Thermal engineers work on applications ranging from power generation and refrigeration to HVAC systems, heat exchangers, and thermal management of electronic devices. They analyze heat flow, temperature distribution, and energy conversion processes to improve efficiency, reduce energy consumption, and ensure the reliable operation of various technologies. Understanding conduction, convection, and radiation is fundamental to this field, which plays a crucial role in many industrial and technological advancements, including sustainable energy solutions.