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Assessing and Measuring Environmental Impact and Sustainability by Jiri J Klemes

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Chapter 3

Sustainable process index

Michael Narodoslawsky,    Graz University of Technology, Institut feur Prozess und Partikeltechnik, Graz, Austria

Sustainable development requires environmental concerns to be integrated into engineering design on the same level as economic considerations. The Sustainable Process Index (SPI) addresses this need and provides a comprehensive evaluation of ecological sustainability based on the concept of strong sustainability using only material and energy balances known to an engineer, even in the early stages of design. The SPI calculates an ecological footprint by taking the whole life cycle of a product or service provided by a technology into account. It calculates the area that is necessary to embed the ...

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