449 CEMSによる病院および大学キャンパスの二酸化炭素削減対策に関する検討(省エネルギー(4))

概要

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In order to reduce primary energy consumption and CO_2 emission, optimizing energy utilization systems in terms of the effective utilization of thermal energy, is an unavoidable process. A new energy management system is proposed by simulating energy utilization within Keio University campuses. Cogeneration systems (CGS) can operate at the nominal load with the maximum utilization of exhaust heat, and the electricity can be utilized by the network among five Keio University campuses. This system creates to utilize thermal energy with high level from second-law view-point and to contribute the electric-load leveling. The optimized energy-utilization system can be brought to realization by combining appropriate energy-demand units with a win-win relationship, which we call "Cluster Energy Management System (CEMS)". The CEMS was applied to five Keio University campuses in this report. As a result, the annual primary energy consumption of the five campuses could be reduced by 14 %, and the annual CO_2 emission could be reduced by 19 %, if the optimum CGS would be installed at Shinanomachi Campus, whose energy consumption account for a half of the five campuses. In addition, by surplus electricity from the CGS in Shinanomachi Campus to be shared within other Campuses, the primary energy consumption of five campuses could be reduced by 17 %, and the CO_2 emission could be reduced by 24 %.
2009-07-08