Irreversibility approach for sustainability analysis of a netshape manufacturing system

Jayasankar Sankara, Dusan P. Sekulic

Research output: Contribution to journalConference articlepeer-review


The approach advocated in this work implements energy/exergy analysis and indirectly an irreversibility evaluation to a continuous manufacturing process involving discrete netshape production of compact heat exchangers through a complex controlled atmosphere brazing (CAB) process. To the best knowledge of the authors, this investigation constitutes the first effort in merging a thorough study of materials processing phenomena and an exergy/irreversibility approach for sustainability analysis in manufacturing. The system under consideration involves fifteen cells of a continuous ramp-up heating, melting, reactive flow, isothermal dwell, and rapid quench solidification processing sequence during a controlled atmosphere brazing of aluminum compact heat exchangers. Detailed mass, energy, and exergy balances were performed. The irreversibility sources were identified and the quality of energy utilization at different processing steps determined.

Original languageEnglish
Article numberIMECE2004-61592
Pages (from-to)255-261
Number of pages7
JournalAmerican Society of Mechanical Engineers, Advanced Energy Systems Division (Publication) AES
StatePublished - 2004
Event2004 ASME International Mechanical Engineering Congress and Exposition, IMECE - Anaheim, CA, United States
Duration: Nov 13 2004Nov 19 2004

ASJC Scopus subject areas

  • Mechanical Engineering
  • Energy Engineering and Power Technology


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