에너지 절약을 위한 "유용성"(Availability)의 열역학적 고찰

Study on the Thermodynamic concept of "Availability" in Energy Conservation

This paper is to present basic concepts of availability, irreversibility, dead states, its relationship to other thermodynamic functions, and the history of availability. The balance of availability and effectiveness has also been formulated in order to build basis on which further study and actual application of availability in estimation of available energy are to be thought.