Experimental investigation of enhanced hydrogen production from atomised water-methanol mixture in a modified plasma reformer

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-03-23 DOI:10.1016/j.tsep.2025.103535

Neeraj Budhraja, Amit Pal, R.S. Mishra

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引用次数: 0

Abstract

Hydrogen is a clean energy carrier with a very high energy content by mass. However, about 97–98 % of H₂ production is through steam reforming, which lowers the benefits of cleaner fuel. In current work, a modified plasma reformer was used to enhance hydrogen production, and the performance parameters like feed flow rate (0.5 to 4.5 LPM), methanol concentration (0 to 35 %) and voltage (4 to 8 V) were analyzed at three different ultrasonic transducer frequencies (0.3, 1.7 and 2.4 MHz). The results showed that the higher frequency (2.4 MHz) transducer had about 8–10 % higher tendency of H₂ production rate against the other two transducers of frequencies 1.7 MHz and 0.3 MHz, respectively. The process parameters that influenced the H₂ production rate include input voltage, which showed a 14–25 % increase in the H₂ production rate from 4 kV to 7.5 kV, and beyond 7.5 kV, it declined. Similarly, the highest H₂ production rate was observed at the higher methanol concentration of 35 % and feed flow rate of 3.5 LPM. The hydrogen selectivity (HS) and methanol conversion (MCP) also calculated and found both positive and negative impacts as per the variations in influencing parameters. The highest raise in HS and MCP were observed about 30–45 % for input voltage whereas the reduction was about 30–40 % for methanol concentration. The feed flow rate showed mixed response.

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

期刊介绍： Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.