Marine Microalgal Biodiesel: Perspectives, Challenges and Opportunities Toward a Sustainable Energy Transition
海洋微細藻類バイオディーゼル：持続可能なエネルギー転換に向けた展望、課題、機会 (AI 翻訳)
Teshome Dengiso Megiso, Venkata Ramayya Ancha
🤖 gxceed AI 要約
日本語
海洋微細藻類由来のバイオディーゼル（FAME含有量94%超）をCIエンジンで試験し、グラフェン酸化物ナノ粒子添加により熱効率4.3%向上、CO・HC・NOxを最大34.5%削減。持続可能な輸送燃料としての可能性を実証。
English
This study evaluates marine microalgal biodiesel (FAME >94%) in a CI engine and shows that adding graphene oxide nanoparticles (55 ppm) improves brake thermal efficiency by 4.3% and reduces CO, HC, and NOx emissions by up to 34.5%, supporting a sustainable energy transition in transport.
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
本研究成果はカーボンニュートラル燃料の技術的可能性を示すもので、日本の次世代自動車・燃料政策（グリーン成長戦略等）に示唆を与えるが、現行のSSBJ開示や有報記載との直接的な接点は少ない。
In the global GX context
This paper provides experimental evidence for a scalable biofuel pathway with significant emission reductions, relevant to global energy transition and transport decarbonization efforts (e.g., EU RED, US RFS), but does not address climate disclosure or carbon accounting frameworks.
👥 読者別の含意
🔬研究者:Provides detailed engine performance and emission data for biodiesel-GO blends, advancing combustion science.
🏢実務担当者:Offers a promising fuel formulation for diesel engine applications with improved efficiency and lower emissions.
🏛政策担当者:Supports the case for investing in advanced biofuels as part of a diversified energy transition strategy.
📄 Abstract（原文）
Marine microalgal biodiesel derived from is investigated as a sustainable energy pathway for compression ignition (CI) engines, with emphasis on fuel quality, combustion behavior, and exhaust emissions. Gas chromatography-mass spectrometry confirmed a fatty acid methyl ester content above 94%, dominated by the C16 to C20 fraction, indicating effective transesterification. Fourier transform infrared spectroscopy revealed a strong ester carbonyl peak at 1,741 cm⁻, while ultraviolet–visible (UV–vis) and photoluminescence (PL) analyses showed negligible aromatic interference and a stable optical response, validating the chemical integrity of the marine microalgal biodiesel. Engine experiments using biodiesel–diesel blends from B5 to B25 demonstrated a maximum brake thermal efficiency (BTE) of 29.6% at full load, along with marked reductions in carbon monoxide (CO) and unburned hydrocarbons (UHCs) relative to neat diesel operation. To intensify fuel-burning characteristics, graphene oxide (GO) nanoparticles were incorporated at concentrations between 35 and 75 ppm. Among all formulations, the B25 blend with 55 ppm GO delivered the most pronounced improvement, achieving a 4.3% increase in BTE and a 6.1% decrease in BSFC compared with baseline B25. This blend also yielded substantial emission mitigation, with reductions of 31.2% in carbon monoxide, 34.5% in hydrocarbons, and 18.7% in nitrogen oxides (NO). These gains are attributed to enhanced fuel atomization, improved oxygen availability, and accelerated heat release, confirming that GO-assisted biodiesel offers a robust and scalable route toward a sustainable energy transition in CI engines.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.5772/intechopen.1015861first seen 2026-07-09 05:07:14
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