Evaluation of a self-heat recuperative thermal process based on thermodynamic irreversibility and exergy

Yasuki Kansha, Yui Kotani, Muhammad Aziz, Akira Kishimoto, Atsushi Tsutsumi

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

In this paper, an exergy analysis and a calculation method for a self-heat recuperative thermal process are described. Self-heat recuperation technology has recently been developed and has the characteristics whereby total process heat can be recirculated within the process, leading to a marked reduction in energy consumption. Although this technology can achieve perfect heat circulation in the process, the minimum energy required for the thermal process has not previously been described. According to both the theoretical and graphical analyses in this paper, self-heat recuperative thermal processes can achieve energy requirements close to the energy required for heat transfer from an exergy point of view. In addition, the simple calculation method for the minimum energy required for heat transfer was derived to be fixed as a target value of heat recovery technology. Thus, this technology supports process intensification and is promising for industry to examine the energy saving potential when designing a thermal process.

Original languageEnglish
Pages (from-to)87-91
Number of pages5
JournalJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Volume46
Issue number1
DOIs
Publication statusPublished - Jan 31 2013
Externally publishedYes

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Keywords

  • Energy
  • Exergy
  • Process Design
  • Self-Heat Recuperation
  • Thermal Process

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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