Multi-function units system LCA based on matrix method

Kenichi Nakajima, Tetsuya Nagasaka, Kohmei Halada, Kiyoshi Ijima

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


LCA (life cycle assessment) is an environmental evaluation tool for a product system based on life cycle thinking. After ISO14040 established in 1997, seven years have passed, and LCA has begun to be use in business. However, it is difficult to evaluate an open-loop recycling system or a system which produces several kinds of products. It seems to be a cause that a conventional LCA is an evaluation tool for a product system with single function unit, In this study, a new LCA method for a system with multi-function units was developed, which was based on matrix LCA method.

Original languageEnglish
Pages (from-to)221-224
Number of pages4
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Issue number2
Publication statusPublished - 2005 Feb


  • Function unit
  • I/O table
  • Life cycle assessment (LCA)
  • Life cycle inventory (LCI)
  • Recycle

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry


Dive into the research topics of 'Multi-function units system LCA based on matrix method'. Together they form a unique fingerprint.

Cite this