Verification of a Hydrogen Flow Meter

GM Flow是英国流量测量设备的设计师和制造商。新兴氢经济的潜在客户告诉我们，无论是电解生产氢气，还是在汽车加油站将氢气高压泵入汽车和卡车时，都不存在精确、低成本和易于使用的氢气流量计。GM Flow设计了一个流量计，并对该产品进行了广泛的计算流体动力学流动建模。我们现在希望在可能的情况下使用氢气进行流量检查和验证仪表的性能，以便客户对其输出功能和准确性有信心。最大流量条件排除了使用氢气的可能性（出于安全和压力原因），因此我们希望验证氮气流量测试和CFD的组合是否可以用于在整个工作范围内对每个流量计的性能进行基准测试。一种使用类似雷诺数来提供可转移和可验证流动性能的方法已用于石油和天然气行业，但该方法尚未用于氢气行业。我们希望提倡使用它，这样我们就可以减少内部成本，为客户提供更有竞争力的产品。该项目的成功将使电解槽制造商能够验证其设备的产量，最大限度地提高制氢能力，并显着降低每公斤生产的成本，这是该行业的主要推动力。在加注应用中，客户可以选择可产生非常高压降的科氏流量计。通过使用我们的流量计而不是科里奥利，客户将获得更高的流量和更短的加油时间，这是加油设备供应商的主要推动力。

GM Flow are UK based designers and manufacturers of flow measurement equipment. Potential customers in the emerging hydrogen economy tell us that an accurate, low cost and easy to use hydrogen flow meter does not exist either when it is being produced by electrolysis, or when it is being pumped at high pressures into cars and trucks in vehicle fuelling stations.GM Flow have designed a flow meter and performed extensive Computational Fluid Dynamics flow modelling of the product. We now wish to flow check and verify the meter's performance using hydrogen where possible, so that customers have confidence in its output functionality and accuracy. Maximum flow rate conditions rule out the possibility of using hydrogen (for safety and pressure reasons), so we wish to verify if a combination of nitrogen flow testing and CFD can be used to bench mark the performance of each flow meter across the full operating envelope.A method which uses similar Reynolds numbers to provide transferable and verifiable flow performance is used in the oil and gas industry, this method has not yet been used in the hydrogen sector. We wish to champion its use, so that we can reduce our internal costs and provide more competitive products to our customers.Success in this project will allow electrolyser manufacturers to verify the output of their equipment, maximising hydrogen generation capacity and significantly reducing the cost of each Kg produced, a major driver for the industry. In fuelling applications, the alternative for customers is a coriolis flow meter, which generates a very high pressure drop. By utilising our flow meter instead of coriolis, customers will achieve increased flow rates and decreased fuelling time, a major driver for fuelling equipment providers.