Indeed, in the international thermodynamics community, he has been very influential. His crystal clear understanding of the entropy balance made him a leader in the 1970s and the 1980s, when the methods of availability analysis (today better known as second law analysis or exergy analysis) were being introduced systematically in the energy-systems engineering practice. This topic was central for the international group that started the ECOS conference series on Efficiency, Cost, Optimization, Simulation, and environmental impact of energy systems, which today gathers hundreds of energy experts, as well as for the Advanced Energy Systems Division of the ASME.

At these international meetings, Professor Gyftopoulos assumed for himself the role of an untiring paladin of rigorous treatments and definitions of thermodynamic concepts, in particular that of entropy. Several European and US colleagues in this broad community consider him as one of the greatest, most generous, and...

Reference

Reference
1.
Gyftopoulos
,
E. P.
, and
Beretta
,
G. P.
,
2005
,
Thermodynamics: Foundations and Applications
,
Dover
,
Mineola, NY
,
2005
(
1st ed.
,
Macmillan, New York
,
1991
).
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