低コストHHO発生装置を用いたグリーン水素製造：設計・製作・性能解析
Green Hydrogen Production Using a Low-Cost HHO Generator: Design, Fabrication, and Performance Analysis (原題)
Fawad Khan, Arshad Ali Khan, Zarar Khan, Muhammad Hamza, Abu Zar, Ahsan Khan, Faryal Khan
🤖 gxceed AI 要約
日本語
本研究は、パキスタン国内で入手可能な部材を用い、無触媒のSS-316L電極と30wt%NaOH電解液によるアルカリ水電解HHO発生装置を設計・製作し性能を評価した。12V・22A入力で水素0.01L/s、システム効率41%を達成し、商用アルカリ電解（65〜75%）やPEM（70〜82%）を下回るが、低コストで完結する再現可能なベースラインを提示した。単一測定であり不確実性評価は今後の課題と明記している。
English
This paper designs, fabricates, and characterizes a low-cost alkaline HHO generator using uncatalyzed SS-316L electrodes and 30 wt% NaOH, built from locally available Pakistani components. At 12 V/22 A it produced 0.01 L/s hydrogen at 41% system efficiency—below commercial alkaline (65–75%) and PEM (70–82%) systems—but offers a reproducible low-cost baseline for future catalyst and design studies. Results reflect a single measurement run without formal uncertainty analysis.
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
日本では水素はGX推進戦略の中核だが、本論文は低コスト・無触媒という開発途上国向けの実装文脈が中心で、SSBJや統合報告書への直接的な示唆は限定的。ただし、水素製造コストの低減可能性は、日本の水素サプライチェーン構築や調達戦略を検討する企業にとって参考になる。
In the global GX context
Globally, this contributes to the democratization of green hydrogen production, showing that functional electrolyzers can be built at a fraction of commercial cost in developing economies. It offers a baseline for catalyst-coating research and highlights the efficiency gap that must be closed for such systems to support decarbonization pathways in non-OECD contexts.
👥 読者別の含意
🔬研究者:低コスト電解槽の設計・製作プロセスと性能ベースラインを提供し、触媒コーティングや効率改善研究の出発点となる。
🏢実務担当者:開発途上国や小規模拠点での水素製造の可能性を検討する際の、低コスト実装オプションとして参考になる。
🏛政策担当者:新興国における水素技術の普及・人材育成政策や、低コスト水素製造への支援策を検討する際の基礎資料となる。
📄 Abstract（原文）
Green hydrogen is seen as one of the few viable routes to decarbonizing sectors that are difficult to electrify directly, but high capital and catalyst costs still put a working electrolyzer out of reach for many smaller laboratories and developing economies. This paper reports the design, fabrication, and performance characterization of a low-cost HHO Generator that produces hydrogen through alkaline water electrolysis, using bare, uncatalyzed SS-316L stainless-steel bipolar electrodes in a 30 wt% aqueous NaOH electrolyte (70:30 v/v tap-water-to-NaOH stock mixture). The system integrates a closed electrolyte circulation loop, a gas–water separator, and a low-pressure hydrogen storage vessel; the complete assembly was modeled in SolidWorks prior to fabrication to verify sealing and fastener alignment before any metal was cut. Under a fixed 12 V, 22 A DC input, the finished unit produced hydrogen at a measured rate of 0.01 L/s (0.6 L/min), corresponding to an electrical input power of 264 W and a recovered hydrogen energy output of 108 W (lower heating value basis), for an overall system efficiency of 41%. This is below the 65–75% typical of commercial alkaline electrolyzers and the 70–82% typical of PEM systems, consistent with the expected penalty of omitting a catalyst coating entirely. All reported values reflect a single measurement run at one fixed operating point; repeat-trial statistics and formal measurement uncertainty were not part of the original test protocol, and this is stated explicitly here as a limitation rather than masked with unreported error bars. The central finding is that a complete, working hydrogen generator—electrode stack, circulation, separation, and storage—can be built end to end from components available in local Pakistani markets at a small fraction of commercial cost, providing a reproducible baseline for future catalyst-coating and design studies.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://journal.50sea.com/index.php/IJIST/article/download/2020/3539first seen 2026-09-29 05:21:59
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