Mitsubishi Heavy Industries Technical Review
    Vol. 59 No. 2 (2022)   Plants and Infrastructure Projects
    Technical Papers

    AI Remote Monitoring and Operational Support System
    MaiDAS® for the Sustainability of Waste to Energy Plants

    YOSHINORI TERASAWA
    WATARU SUZUKI
    TOMOMICHI EGUSA
    KEIICHI HAYASHI
    YUTARO YAMAOKA
    TOSHIHIKO SETOGUCHI

    Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. (MHIEC) has developed MaiDAS®, which is a next-generation AI-based remote monitoring and operational support system for Waste to Energy (WtE) plants. This system enables advanced automatic operation while maintaining the health of important equipment for plant operation and optimizing the amount of evaporation and the output of exhaust gas concentration while eliminating the effect of variable factors associated with individual operators. The use of this system can predict in real time values such as Low Heating Value (LHV), the amount of waste feed, and combustion conditions. The advanced automatic operation, which is controlled by the system, can considerably reduce manual intervention. The stabilization of the main steam flow rate has also been confirmed. Together with this system, the improvement of the already-developed waste pit mixing and feeding support system is considered to make it possible to realize both stable operation and cost reduction, while maximizing the sustainability of WtE plants.