Evaluates the overall economic efficiency of a closed resource cycle. Uses elementary thermodynamic definitions of overall thermal efficiency for determining an economically quantifiable basis. Selects aluminum for investigation and includes a value-entropy diagram for a closed aluminum cycle. (MVL)

This packet is one of the "Exploration" series of curriculum materials developed for junior high and middle school industrial educators. The Exploration Series is intended to help them provide seventh- and eighth-grade students an opportunity to explore a wide range of industrial situations as well as some of the technologies used in the industry.…

This learning guide on conserving limited resources is part of a series of learning guides developed for competency-based adult consumer and homemaking education programs in community colleges, adult education centers, community centers, and the workplace. Focus is on the connections among personal, family, and job responsibilities so that these…