Thermal engineering comprises the discipline of thermodynamics and the specialisation of energy technology.
Thermodynamics as a general study of energy is a fundamental science of technology. It is a fundamental subject in almost all technical courses of study and training.
Thermodynamics is particularly important for energy engineering, e.g. in the planning, construction and operation of power plants. It also plays a key role in the design of fluid machinery such as turbines, compressors, internal combustion engines or drive mechanisms.