National Thermal Engineer Day is celebrated annually on July 24 to commemorate the great contributions or important role of thermal engineers and also highlight the significance of thermal energy in our daily lives worldwide.  This international day provides an opportunity to share the importance of thermal energy on several social media websites including Facebook, Twitter, Instagram, and many more among common people across the world. The main aim of this global day is to commemorate or honor the role of thermal engineers in several big companies, mainly in the progression and development of technology and electronics. 

Thermal energy is a form of energy that is contained in a system and is responsible for its temperature and heat is also another form of thermal energy, and thermal energy is directly proportional to the change in temperature of any object. It means an increase in temperature that raises thermal energy because of the faster movements of molecules and atoms of the substances. Thermodynamics is the branch of popular subject physics that deals with the transfer of energy from one form to another and also from one place to another and also deals with the basic concepts of temperature, heat, and other forms of energy.

Thermal engineering is the branch of engineering, which mainly concentrates on fluid mechanics, heat transfer, cooling systems, and heating. This type of engineering involves fluid mechanics, heat, and thermodynamics. Thermal engineers play an important role in their big companies that require temperature regulation. The main work or responsibility of a thermal engineer is to design systems that utilize or use several thermal sources of generated energy to create mechanical, electrical, or chemical energy. Thermal engineers use their great knowledge of thermodynamics and heat transport to improve the efficiency and effectiveness of several technologies and systems that are used daily life.