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欧州農業における畜産脱炭素化のための太陽光・バイオマスハイブリッドマイクロCHPシステムの環境ライフサイクル評価

Environmental Life Cycle Assessment of a Hybrid Solar–Biomass Micro-CHP System for Livestock Decarbonization in European Agricultural Settings (原題)

Dimitrios Tyris, Anastasios Skiadopoulos, Vasileios Anestis, Dimitris Manolakos

Applied Sciences📚 査読済 / ジャーナル2026-10-20#エネルギー転換Origin: EU経営インパクト: コスト削減対象セクター: agriculture
DOI: 10.3390/app162010383
原典: https://doi.org/10.3390/app162010383

🤖 gxceed AI 要約

日本語

養豚哺育施設向けの太陽光・バイオマスハイブリッド型マイクロCHP（PEORC）を対象に、ギリシャ・デンマーク・ポーランドでcradle-to-grave LCAを実施。ハイブリッド構成はディーゼルボイラー比で気候変動影響を約90〜108%削減し、バイオマス単独構成が多くの影響カテゴリで優位だった。低GWP作動流体R1233zd(E)への転換は漏洩時の気候・オゾン影響を大幅に緩和する。

English

A cradle-to-grave LCA evaluates a solar–biomass hybrid PEORC micro-CHP for swine nursery heating across Greece, Denmark, and Poland. The hybrid cut climate change impacts 89.6–108.3% versus diesel boilers, while standalone biomass performed best in most categories. Switching to low-GWP working fluid R1233zd(E) reduced leakage-related climate and ozone risks by ~90%.

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

日本の畜産・農業分野は再エネ熱利用や営農型太陽光の導入余地が大きく、本論文の分散型脱炭素暖房のLCA手法は国内のScope1排出削減やSSBJ開示における一次データ整備の参考になる。

In the global GX context

Adds EU empirical evidence on decentralized renewable heating for agriculture, relevant to CSRD/Scope 1 accounting and to the debate on how grid decarbonization erodes substitution credits in LCA-based disclosure.

👥 読者別の含意

🔬研究者:農業分野の再エネ熱システムのLCA設計と代替クレジットの感度分析の実例として有用。

🏢実務担当者:畜産・食品企業が暖房の脱炭素化投資を検討する際の比較基準と作動流体選定の示唆を提供。

🏛政策担当者:農業脱炭素支援策や再エネ熱導入インセンティブ設計の根拠として参照可能。

📄 Abstract（原文）

The intensive livestock sector’s reliance on fossil fuels for space heating (SH) necessitates sustainable alternatives to reduce agricultural greenhouse gas (GHG) emissions. This study conducts a cradle-to-grave Life Cycle Assessment (LCA) to evaluate a Partially Evaporating Organic Rankine Cycle (PEORC) micro-combined heat and power (micro-CHP) system for swine nursery facilities. A solar–biomass hybrid (PS1) and a standalone biomass-driven architecture (PS2) are compared against conventional diesel (REF1) and biomass (REF2) boilers across Greece, Denmark, and Poland. Across the three locations, PS1 reduced Climate Change impacts by 89.6–108.3% relative to REF1 and 23.2–161.1% relative to REF2, while PS2 achieved reductions of 93.0–112.3% and 48.2–190.7%, respectively; reductions greater than 100% reflect net-negative modeled impacts driven by grid electricity displacement under the substitution assumptions. PS2 was environmentally superior in most impact categories across all locations. Omitting the solar field avoided substantial embodied burdens in resource depletion and ecotoxicity and reduced Climate Change impacts by up to 116.0% relative to PS1. Transitioning from conventional R134a to the low-GWP (Global Warming Potential) working fluid (WF) R1233zd(E) substantially mitigated severe Climate Change and Ozone Depletion Potential (ODP) risks associated with simulated operational leakages, reducing the WF’s Single Environmental Score (SES) by approximately 90%. Despite the eroding effect in substitution credits caused by the dynamic grid decarbonization at EU level, bio-mass-driven micro-CHP systems present a highly effective decentralized de-carbonization strategy for agricultural heating.

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