Mechanical engineers use computer-aided engineering software to calculate the temperature of turbine blades in a jet engine.

Quantities, Symbols, and Units That Arise When Analyzing Thermal and Energy Systems

After completer chapitre 6, you should answer these questions:

1. How are gravitational and elastic potential energy, and kinetic energy
   calculated?

2. What is the difference between work and power? What are their
   conventional units in the SI and USCS?

3. What is the heating value of a fuel?

4. What is the specific heat of a material?

5. Give examples of situations where heat is transferred through
   conduction, convection, and radiation.

6. Define the term “thermal conductivity.”

7. What is a heat engine?

8. How is efficiency defined?

9. What are some of the differences between real and ideal Carnot
   efficiencies? Which is always higher?

10. How are absolute temperatures calculated on the Rankine and Kelvin
    scales?

11. Sketch the piston, connecting rod, and crankshaft mechanism in an
    internal-combustion engine.

12. Explain how the four-stroke and two-stroke engine cycles operate.

13. What are the relative advantages and disadvantages of four-stroke and two-stroke engines?

14. Sketch a diagram of an electric power plant and briefly explain how it
    works.