Shipping Decarbonization Using Thermal Energy Storage Systems: A Review
熱エネルギー貯蔵システムを用いた船舶脱炭素化：レビュー (AI 翻訳)
Athanasios G. Vallis, Efthimios G. Pariotis, John S. Katsanis, George G. Dimopoulos, Theodoros C. Zannis
🤖 gxceed AI 要約
日本語
本レビューは、カーネル電池（Power-to-Heat-to-Power）の船舶脱炭素化への応用を体系的に評価。高温ブレイトンサイクルは60-80%の効率、亜臨界ランキンサイクルはLNG冷熱との統合で見かけ効率200%超を達成可能。エネルギー密度は媒体により1 kWh/m3未満から385 kWh/m3超まで変動。港湾停泊中や排出規制海域でのゼロエミッション電力供給に有望。
English
This review systematically evaluates Carnot batteries (Power-to-Heat-to-Power) for shipping decarbonization. High-temperature Brayton cycles achieve 60-80% efficiency, while subcritical Rankine cycles can exceed 200% apparent efficiency when integrated with LNG cryogenic cold. Energy density varies from under 1 kWh/m3 to over 385 kWh/m3 depending on storage medium. The technology offers zero-emission power for harbor stays and ECAs.
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
日本の海事産業は国際海運の脱炭素化目標に対応する必要があり、本レビューはカーネル電池技術の実装可能性を評価する上で有用。日本はLNG輸入国であり、LNG冷熱利用は国益に合致する可能性がある。
In the global GX context
This review contributes to global maritime decarbonization efforts by assessing Carnot battery technology, which can support zero-emission shipping in ECAs and ports. It provides a comparative framework for technology selection, relevant for IMO and EU regulations.
👥 読者別の含意
🔬研究者:Provides a systematic comparison of Carnot battery architectures, useful for identifying research gaps in maritime energy storage.
🏢実務担当者:Offers insights into technology readiness and efficiency metrics for evaluating thermal storage options in ship design.
🏛政策担当者:Highlights a promising technology for meeting maritime emission reduction targets, informing policy support for R&D.
📄 Abstract（原文）
As the global energy sector and maritime industry transition toward carbon neutrality, Carnot batteries have emerged as a critical technology for flexible, long-duration energy management. Carnot batteries, which operate on a Power-to-Heat-to-Power principle, present a highly promising alternative to conventional electrochemical batteries. The present study provides a review of Carnot battery architectures, systematically evaluating their thermodynamic cycles, working fluids, Thermal Energy Storage media and key turbomachinery components. A comparative assessment of the current literature illustrates that system selection requires balancing round-trip efficiency, Energy Storage Density and Technology Readiness Level. According to the findings of the present study, high-temperature Brayton cycles offer robust baseline efficiencies of 60–80% whereas subcritical Rankine cycles benefit from commercial maturity and can achieve efficiencies exceeding 200% when integrated with cryogenic heat sinks like LNG. It should be clarified that efficiency values exceeding 100% represent “Apparent Round-Trip-Efficiencies (RTE)” resulting from the thermodynamic contribution of external exergy streams, such as LNG cryogenic cold, rather than standalone cycle efficiencies, which are strictly below 100%. In addition, volumetric energy density varies drastically based on the physical phase of the storage medium, scaling from under 1 kWh/m3 for unpressurized water to over 385 kWh/m3 for advanced thermochemical systems. Although most configurations currently remain in the prototyping phase, the technology holds transformative potential for the maritime sector. Carnot batteries can deliver a self-contained, zero-emission electrical power supply to cover the vessel’s electrical load requirements during harbor stays and transit within Emission Control Areas (ECAs) by dynamically capturing and storing shipboard waste heat during open sea transit.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.3390/en19163852first seen 2026-08-18 05:21:01
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