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Design of a renewable energy system with battery and power-to-methanol unit
Riezqa Andika,김영,Choa Mun Yun,윤석호,이문용 한국화학공학회 2019 Korean Journal of Chemical Engineering Vol.36 No.1
An energy storage system consisting of a battery and a power-to-methanol (PtM) unit was investigated to develop an energy storage system for renewable energy systems. A nonlinear programming model was established to optimize the energy storage system. The optimal installation capacities of the battery and power-to-methanol units were determined to minimize the cost of the energy system. The cost from a renewable energy system was assessed for four configurations, with or without energy storage units, of the battery and the power-to-methanol unit. The proposed model was applied to the modified electricity supply and demand based on published data. The results show that value-adding units, such as PtM, need be included to build a stable renewable energy system. This work will significantly contribute to the advancement of electricity supply and demand management and to the establishment of a nationwide policy for renewable energy storage
윤좌문,이동엽,조아연,이상엽,박선원,Yun, Choa-Mun,Lee, Dong-Yup,Cho, A-Youn,Lee, Sang-Yup,Park, Sun-Won 제어로봇시스템학회 2005 제어·로봇·시스템학회 논문지 Vol.11 No.10
The computational modeling and simulation of complex biological systems are indispensable for new knowledge extraction from huge experimental data and ever growing vast amount of information in systems biology. Moreover, gathering and sharing of the existing information and newly-generated knowledge can speed up this research process. In this regard, several modeling projects have been undertaken for quantitatively analyzing the biological systems via the internet. They include Virtual Cell, JWS and OBIYagns. We also develop an integrated web-based environment, which facilitate investigation of dynamic behavior of cellular systems.
Co-electrolysis for power-to-methanol applications
Andika, Riezqa,Nandiyanto, Asep Bayu Dani,Putra, Zulfan Adi,Bilad, Muhammad Roil,Kim, Young,Yun, Choa Mun,Lee, Moonyong Elsevier 2018 RENEWABLE & SUSTAINABLE ENERGY REVIEWS Vol.95 No.-
<P><B>Abstract</B></P> <P>This article reviews the issues facing co-electrolysis and its applications to the power-to-methanol process. Co-electrolysis is an attractive process for syngas production that uses excess generated electricity. In extended applications, syngas produced from co-electrolysis can be used for various applications like methanol production. In this review, the power-to-methanol process is comprehensively discussed from a process systems engineering viewpoint. The subjects discussed include the reason to choose methanol as a final product, the latest progress in power-to-methanol projects, and a comparison of methanol production from H<SUB>2</SUB>-CO (from co-electrolysis) and H<SUB>2</SUB>-CO<SUB>2</SUB> mixtures (from electrolysis). Syngas production pathways from co-electrolysis and electrolysis are further investigated, and potential power-to-methanol schemes using co-electrolysis are deployed. Lastly, research directions are proposed to accelerate power-to-methanol commercialization.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Power-to-methanol (PtM) technology using co-electrolysis is intensively reviewed. </LI> <LI> The PtM technology regulates fluctuate power supply from renewable energy and consumer demand. </LI> <LI> Co-electrolysis applications for PtM process are comprehensively discussed. </LI> <LI> A comparison of methanol productions from co-electrolysis and from electrolysis is done. </LI> <LI> Start-up time and ramping flexibility are critical to commercialize the PtM process. </LI> </UL> </P>