Youngjae Kim*, Toshihiko Matsuto* and Nobutoshi Tanaka*

*Department of Environmental and Sanitary Engineering, Faculty of Engineering, Hokkaido University

+ Correspondence should be addressed to Toshihiko Matsuto:
Faculty of Engineering, Hokkaido University
(North 13 West 8, Kita-ku, Sapporo 060 Japan)

Abstract

Energy analysis was done for the RDF production and utilization system in Sapporo. The analysis covered the whole range of the system: from refuse collection to landfilling of residue. Excluding minor parameters in calculation with a sensitivity analysis, the authors' energy calculating procedure can be easily applied to other systems. The RDF system can produce larger net energy output than input energy requirements, although it consumes much energy to produce RDF. In terms of the energy yield, the ratio of the net energy output to the calorific value of the refuse input, the RDF system is comparable to the Atsubetsu refuse incinerator, which has the highest energy recovery rate in Japan.

Key words: refuse derived fuel, energy evaluation, energy analysis, refuse incineration