氢循环泵工作间隙泄漏流量计算公式研究

IF 2.6 4区 工程技术 Q3 ENERGY & FUELS Frontiers in Energy Research Pub Date : 2024-09-02 DOI:10.3389/fenrg.2024.1414926
Huanle Zhai, Wei Li, Xiaomeng Chu, Honggang Mu, Yuanfeng Xu
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引用次数: 0

摘要

氢循环泵(HCP)是燃料电池系统中回收未消耗氢气以提高效率的装置,是燃料电池系统中的重要设备。有效计算氢循环泵的输出流量对加快产品开发过程至关重要,但目前缺乏有效的工作间隙泄漏计算公式。本文建立了一系列具有不同工作间隙的 HCP 模型,并采用重叠网格仿真方法进行了计算,验证了传统的罗茨鼓风机泄漏流量计算公式对于 HCP 是可行的,尽管最大计算误差达到了 10.71%。进一步研究 HCP 腔内压力分布规律,对传统计算公式进行相应修正,使系列模型的平均计算误差从 5.75% 降至 3.82%,最大误差也降至 7.73%。与原型测试数据相比,虽然两种计算公式得到的流量值略有提高,但修正公式的计算误差相对较小。研究结果表明,修正公式能更准确地预测 HCP 的流量,具有重要的应用价值。
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Research of the calculation formula for working clearance leakage flow of the hydrogen circulation pump
The hydrogen circulation pump (HCP), a device for recovering unconsumed hydrogen gas in fuel cell systems to improve efficiency, is an important equipment in fuel cell systems. Efficient calculation of the output flow rate of the HCP is crucial for accelerating the product development process, but there is a lack of an effective calculation formula for the working clearance leakage. In this paper, a series of HCP models with different working clearances are established and calculated using an overlapping grid simulation method, verifying that the traditional Roots blower leakage flow formula is feasible for HCP, although the maximum calculation error reaches 10.71%. Further study the pressure distribution law inside the HCP chamber, and revise the traditional calculation formula accordingly, so that the average calculation error of the series models is reduced from 5.75% to 3.82%, and the maximum error is also reduced to 7.73%. Compared with the prototype test data, though the flow values obtained from the two calculation formulas are slightly higher, the calculation error of the correction formula is relatively smaller. The research results indicate that the correction formula can more accurately predict the flow rate of HCP and has important application value.
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来源期刊
Frontiers in Energy Research
Frontiers in Energy Research Economics, Econometrics and Finance-Economics and Econometrics
CiteScore
3.90
自引率
11.80%
发文量
1727
审稿时长
12 weeks
期刊介绍: Frontiers in Energy Research makes use of the unique Frontiers platform for open-access publishing and research networking for scientists, which provides an equal opportunity to seek, share and create knowledge. The mission of Frontiers is to place publishing back in the hands of working scientists and to promote an interactive, fair, and efficient review process. Articles are peer-reviewed according to the Frontiers review guidelines, which evaluate manuscripts on objective editorial criteria
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