2010 Volume 76 Issue 772 Pages 3744-3751
The purpose of this paper is to estimate and assess a future state of domestic copper supply from a viewpoint of sustainability. The authors develop a simulation model of material flow of domestic copper resources and then estimate the demand and the supply toward 2030. A recycle flow with time series is considered as well for the estimation. Automobile, electric appliance and construction industries are considered in this paper under the scope of recycle laws in Japan. The simulation result illustrates that copper stock in market is estimated to be 4.1 million tons and the copper supply produced from scrap metal is 120000tons. Furthermore, the result prospects shortage of copper resources as much as 54000-59000tons against the domestic demand in 2030 even considering improvement of the recycle system. Therefore, the authors conclude that domestic copper resource is not sustainable in Japan and thus emphasize two important countermeasures such as reducing copper usage for the next generation vehicle and further sharing of recycled resources among other industries.
Transactions of the Society of Mechanical Engineers
Transactions of the Japan Society of Mechanical Engineers
Transactions of the Japan Society of Mechanical Engineers Series A
Transactions of the Japan Society of Mechanical Engineers Series B
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
