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所在平台: Udemy |
课程主页: https://www.udemy.com/course/pem-electrolyser-balance-of-plant-masterclass/
课程评论：没有评论
**Coursera 课程总结：PEM 电解槽平衡系统（Balance of Plant）大师班** 本课程专为从事大规模 PEM（质子交换膜）电解槽的工程师和专业人士设计，提供深入的技术指导，超越理论知识，深入探讨绿色氢气生产系统的实际复杂性。 **课程核心内容：** * **PEM 堆栈运行：** 深入理解质子交换动态、水渗透以及内部电荷保持机制。 * **平衡系统 (BoP) 工程：** 涵盖超纯水系统（0.09 µS/cm）、板式换热器、绝热冷却与制冷冷却，以及干燥剂循环冷热气体技术。 * **堆栈电压监测与安全：** 学习堆栈单元电压监测、氢气侧压降分析以及安全联锁。 * **氢气安全：** * 重点关注氢气在空气中的爆炸极限（4%-75% H₂），以及 PEM 电解槽在室内操作的特别风险。 * 探讨基于 LEL（最低爆炸极限）的探测器校准（%LEL ≠ %H₂）和不同国际规范下的关断阈值。 * 分析高压（30 bar）阴极向低压阳极的氢气反向扩散，以及维持最小电流密度以防止形成易燃的 O₂-H₂ 混合物的必要性。 * 分享实际故障案例研究，包括 2019 年 Cureboard 爆炸事故。 * **电气安全：** * 解释为何隔离的堆栈由于电容器般的电荷存储仍然是致命的。 * 说明 PEM 堆栈在闲置时如何充当低效率的燃料电池，通过环境中的 H₂/O₂ 重新充电。 * 指导如何使用放电器、锁定程序和持续接地，以防止即使在关机几天后也可能发生的致命电击。 * **堆栈耐久性创新：** * 研究额外的阴极侧冷却以防止热点和膜变薄。 * 探讨轻度阳极加压以减小 O₂ 气泡尺寸并改善膜水合作用。 * 介绍模块化、可隔离的堆栈阵列（例如 Enapter 的 420 堆栈 Nexus 和 Omium 的冗余方法）以提高可维护性和弹性。 * 分析催化剂负载量和水净化成本效益在系统规模上的权衡。 **课程目标：** 学完本课程后，您将能够自信地在实际应用中安全运行和优化 PEM 电解槽，在成本、安全、耐久性和性能之间取得平衡。
This in-depth technical course is designed for engineers and professionals working with PEM electrolyzers at scale. With rich real-world experience and a signature engaging delivery style, Hunor will take you beyond the textbook-into the lived complexity of green hydrogen production systems.You'll explore:PEM stack operation: proton exchange dynamics, water crossover, and internal charge retentionBalance of Plant (BoP) engineering: ultrapure water systems (0.09 µS/cm), plate heat exchangers, adiabatic vs. refrigerant cooling, and desiccant dryers cycling hot/cold gasStack cell voltage monitoring, hydrogen-side pressure drop analysis, and safety interlocksHydrogen safety is a key focus. You'll cover:The explosive window of 4%-75% H₂ in air, and why PEM electrolyzers are especially risky indoorsLEL-based detector calibration (%LEL ≠ %H₂) and shutdown thresholds across international codesHydrogen back-diffusion from 30 bar cathode to low-pressure anode-why minimum current density must be maintained to prevent flammable O₂-H₂ mixesReal-world failure case studies, including the Cureboard 2019 explosionA deep dive into electrical safety includes:Why isolated stacks remain lethal due to capacitor-like charge storageHow PEM stacks act like low-efficiency fuel cells when idle, recharging with ambient H₂/O₂How to use dischargers, lockout procedures, and continuous grounding to prevent fatal shocks-even days after shutdownFinally, you'll examine the latest in stack durability innovation:Extra cathode-side cooling to prevent hotspots and membrane thinningLight anode pressurization to shrink O₂ bubble size and improve membrane hydrationModular, isolable stack arrays (e.g. Enapter's 420-stack Nexus and Omium's redundancy approach) for serviceability and resilienceTrade-offs in catalyst loading and water purification cost-benefit at system scaleBy the end, you'll understand how to safely run and optimize PEM electrolyzers in the field-balancing cost, safety, durability, and performance with confidence.
