https://scholars.lib.ntu.edu.tw/handle/123456789/407941
標題: | Global optimization of microalgae-to-biodiesel chains with integrated cogasification combined cycle systems based on greenhouse gas emissions reductions | 作者: | Wu W. Wang P.-H. Lee D.-J. Chang J.-S. |
關鍵字: | Global optimization;Heat integration;Integrated cogasification combined cycle;Life cycle assessment;Microalgae | 公開日期: | 2017 | 卷: | 197 | 起(迄)頁: | 63-82 | 來源出版物: | Applied Energy | 摘要: | A microalgae-based energy system, which is a combination of different microalgae-to-biodiesel chains and an integrated cogasification combined cycle (ICGCC) system, is presented. To address the low environmental impacts, the electricity is generated from ICGCC to meet the load demand from the microalgae-to-biodiesel chains and the flue gas exits from ICGCC to meet the demand of growing algal culture. To achieve the microalgae-based energy system with minimum life cycle greenhouse gas (GHG) emissions, the first step is to develop the superstructure model based on GAMS, the second step is to use the optimal heat exchanger network to maximize the heat recovery of ICGCC, and the third step is to find the optimal combination of the microalgae-to-biodiesel chain and optimal operating conditions of ICGCC by solving the global optimization of nonconvex mixed-integer nonlinear programming (MINLP) problem. For the scope of well-to-tank (WTT), the optimal microalgae-based energy system reduces 16.80% greenhouse gas (GHG) emissions compared to the other reported microalgae-to-biodiesel chains. For the scope of well-to-wheel (WTW), the optimal microalgae-based energy system reduces 45.77% GHG emissions compared to the conventional diesel process. ? 2017 Elsevier Ltd |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407941 | ISSN: | 03062619 | DOI: | 10.1016/j.apenergy.2017.03.117 | SDG/關鍵字: | Algae; Biodiesel; Chains; Gas emissions; Global optimization; Heat exchangers; Integer programming; Life cycle; Microorganisms; Waste heat; Combined cycle; Greenhouse gas emissions reductions; Heat exchanger network; Heat integration; Life Cycle Assessment (LCA); Micro-algae; Nonconvex mixed-integer nonlinear programming; Optimal operating conditions; Greenhouse gases; biofuel; biotechnology; electricity generation; emission control; environmental impact assessment; greenhouse gas; heating; integrated approach; life cycle analysis; microalga; nonlinearity; optimization; phase transition; recovery; algae |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。