Impact assessment of introducing carbon dioxide reduction technologies in an environmentally friendly factory

IHARA Terukazu, MINATO Nobuaki

doi:10.24803/sdjapan.19.0_1

In response to growing environmental awareness, many manufacturing companies with factories are not only adopting renewable energy sources, but also actively reducing their direct carbon footprint. Compared to the widespread use of renewable energy to meet electricity demand, fossil fuel consumption is still the mainstay for responding to heat demand and remains a source of carbon dioxide (CO2) emissions. One solution that has garnered attention for its potential as an efficient method for reducing CO2 emissions is the use of heat from woody biomass and a system to directly capture these emissions (carbon capture storage (CCS)). The purpose of this study is to envision CO2 reduction technologies that could be used in the future by environmentally friendly factories, and to quantitatively evaluate the effects and costs of introducing these technologies through simulations using system dynamics. Simulation results for the evaluation of CCS, photovoltaic power, and biomass heat utilization technology show that the advancement of CCS technology can reduce the cost of photovoltaic power from 15,000 yen/ton-CO2 to 14,000 yen/ton-CO2 in 30 years while reducing CO2 emissions. This model is scalable and flexible enough to consider several interrelated conditions, and can guide the long-term choice of efficient CO2 reduction measures by allowing a comparison and evaluation of CO2 reduction effects.

Impact assessment of introducing carbon dioxide reduction technologies in an environmentally friendly factory

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