This online engineering PDH interactive presentation presents the fundamentals of heat transfer and describes how specific parameters affect the rate of heat transfer.
Temperature is a measure of the amount of energy possessed by the molecules of a substance. It is a relative measure of how hot or cold a substance is and can be used to predict the direction of heat transfer. Heat is energy in transit. The transfer of energy as heat occurs at the molecular level as a result of a temperature difference. Heat is capable of being transmitted through solids and fluids by conduction, through fluids by convection, and through empty space by radiation.
When a temperature difference exists across a boundary, the Second Law of Thermodynamics indicates the natural flow of energy is from the hotter body to the colder body. The Second Law of Thermodynamics denies the possibility of ever completely converting into work all the heat supplied to a system operating in a cycle.
This 1 PDH online interactive presentation is intended primarily for mechanical and chemical engineers and professionals who are interested in learning more about the basics of heat transfer.
This PE continuing education interactive presentation is intended to provide you with the following specific knowledge and skills:
- Understanding the difference between heat, temperature and work
- Familiarizing with heat transfer terminology
- Understanding the Second Law of Thermodynamics
- Learning about the three modes of heat transfer; conduction, convection, and radiation
- Performing heat transfer calculations
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