ABSTRACT
This chapter develops a convenient approach for thermodynamic analysis. It defines availability, and uses the concept of availability to develop the availability equations. The availability equations are based on the combination of the first and second laws of thermodynamics. The flow availability at a state is a function of the properties at the same state for a specified environmental condition. When the state of the system becomes identical to that of the environment, there will be no availability in the system, and the system will have no work potential relative to the environment. Based on the concept of work potential, the system should have additional availability if the system's kinetic and potential energies are different from those in the environment. The chapter discusses flow availability and nonflow availability, and presents numerical calculations for and to determine the effect of temperature and pressure change on availability.
