Investigating sono-electrolysis for hydrogen generation and energy optimization

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2025-04-24 DOI:10.1016/j.icheatmasstransfer.2025.108980

Yew Heng Teoh , Sheng Yuh Liew , Heoy Geok How , Haseeb Yaqoob , Mohamad Yusof Idroas , Muhammad Ahmad Jamil , Saad Uddin Mahmud , Thanh Danh Le , Hafiz Muhammad Ali , Muhammad Wakil Shahzad

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Abstract

Hydrogen (H₂) is expected to be the new fuel generation, surpassing conventional fossil fuels and coal in reducing carbon emissions. However, green H₂ production constitutes only a minor part of the H₂ production sector. Water electrolysis is a method for green H₂ production but suffers from low energy efficiency. Auxiliary ultrasound in H₂ production is a method under research for increasing H₂ production and energy efficiency. This study evaluates the effectiveness of H₂ production with auxiliary ultrasound under various parameters of temperature (28–45 °C), solution concentration (15–45 %), voltage (3.5–10 V), and ultrasound power (silent, low, and high) for electrolysis and sono-electrolysis. The result shows that sono-electrolysis benefits from increased H₂ production compared to electrolysis when voltage, temperature, solution concentration, and ultrasound power increase. However, the energy efficiency for sono-electrolysis is lower than that for electrolysis under all conditions due to inefficient ultrasound power transmitted and low H₂ production increase with ultrasound power. The H₂ production for electrolysis reaches an optimum condition at 129.5 cm³/h with an energy efficiency of 13.15 %, while high-power sono-electrolysis produces H₂ at 265 cm³/h with an energy efficiency of 7.71 % at the optimum condition. Ultrasound increases H₂ production in electrolysis but reduces energy efficiency. A more detailed exploration of electrolysis and sono-electrolysis is still needed to achieve high H₂ production with high energy efficiency.

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研究声电解制氢和能源优化

氢（H2）有望在减少碳排放方面超越传统化石燃料和煤炭，成为新的燃料发电方式。然而，绿色氢气生产仅占氢气生产部门的一小部分。水电解是一种绿色制氢方法，但存在能源效率低的问题。超声辅助制氢是一种提高氢气产量和能源效率的新方法。本研究对电解和超声电解在温度（28 ~ 45℃）、溶液浓度（15 ~ 45%）、电压（3.5 ~ 10 V）、超声功率（静音、低、高）等参数下辅助超声制氢的效果进行了评价。结果表明，当电压、温度、溶液浓度和超声功率增加时，超声电解比电解更有利于H2产量的增加。然而，超声电解的能量效率在任何条件下都低于电解的能量效率，这主要是由于超声功率传输效率不高，氢气产量也随着超声功率的增加而降低。电解制氢的最佳条件为129.5 cm3/h，能量效率为13.15%；大功率超声电解制氢的最佳条件为265 cm3/h，能量效率为7.71%。超声波增加电解过程中氢气的产生，但降低了能量效率。为了实现高能效的高产氢，还需要对电解和超声电解进行更详细的探索。

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.