完全廃棄物変換ソリューションに向けた効率的・低炭素発電プラント構成の多目的最適化
Multi-objective Optimization of an Efficient, Low-Carbon Power Plant Configuration for a Complete Waste Conversion Solution (原題)
Sk Arafat Zaman, Fahad Alzahrani
🤖 gxceed AI 要約
日本語
都市固形廃棄物（MSW）を原料に、蒸気ガス化・タール改質・外部燃焼ガスタービン（EFGT）・超臨界CO2サイクルを統合した低炭素発電システムを提案。応答曲面法とNSGA-IIによるパレート解析で、エネルギー性能・排出削減・経済性のトレードオフを最適化した。最適条件で18.9MWの発電、発電コスト0.02065$/kWh、効率82.08%、CO2排出は従来石炭火力比約50%減の54キロトン/年と試算。
English
This study proposes an integrated low-carbon power pathway from municipal solid waste combining steam gasification, in-line tar cracking, an externally fired gas turbine, and a supercritical CO2 cycle. Using response surface methodology and NSGA-II Pareto analysis, it optimizes trade-offs among energetic performance, emissions, and economics. The optimum yields 18.9 MW at 0.02065 $/kWh, 82.08% efficiency, and ~54 kt CO2/year—about 50% lower than a conventional coal plant.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では廃棄物発電はFIT/FIP制度や地域循環共生圏の文脈で重要だが、本論文は技術最適化が主眼で、SSBJや有報開示への直接的な示唆は限定的。ただし、廃棄物由来の低炭素電源はScope1排出削減や再エネ調達の選択肢として、製造業の脱炭素戦略に間接的に寄与しうる。
In the global GX context
Globally, waste-to-energy with CCS or high-efficiency conversion is increasingly recognized as a hard-to-abate decarbonization lever, though it sits outside mainstream disclosure frameworks like TCFD/ISSB. The paper's techno-economic optimization offers a quantitative basis for transition finance and project-level carbon accounting in the waste sector.
👥 読者別の含意
🔬研究者:廃棄物ガス化とsCO2サイクルを統合した多目的最適化の手法と性能指標を参考にできる。
🏢実務担当者:廃棄物発電事業の低炭素化・コスト低減の可能性を評価する際の技術的ベンチマークとして利用可能。
🏛政策担当者:廃棄物管理とエネルギー政策の統合において、高効率・低炭素技術の導入インセンティブ設計に示唆を与える。
📄 Abstract（原文）
Clean energy production and effective waste management are two imperative requirements of the modern energy world as both serve significant roles solving the ever-increasing energy need and emission control to decarbonize the energy sector. This study proposes an integrated pathway for low-carbon power generation from municipal solid waste (MSW) that combines steam gasification with an in-line tar-cracking reactor, an externally fired gas turbine (EFGT) as the prime mover, and a compact, high-efficiency supercritical CO 2 (sCO 2 ) power cycle for flue gas heat recovery. The proposed configuration is evaluated from environmental and techno-economic perspectives and the effects of changing the individual decision variables as well as their combined effects were analyzed on the response variables. Finally, the plant has been systematically optimized using response surface methodology, including Non-dominated Sorting Genetic Algorithm II (NSGA-II)-based Pareto analysis to quantify trade-offs among energetic performance, emissions mitigation, and economic feasibility. The optimization study shows that the proposed system is capable of producing 18.9 MW of electricity at a production cost of 0.02065 $/kWh, with efficiency as high as 82.08 % (about 135% higher compared to the conventional coal-based subcritical plant). On the other hand, the CO 2 emission at the optimum operating condition has been found to be around 54 kilo tonne/year, which is approximately 50% lower than that of the conventional plant, for the same power generation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.energy.2026.142607first seen 2026-10-16 04:54:45
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