Flexible power and heat generation in resilient zero carbon industry.

在南威尔士工业集群，正在制定工业加热过程脱碳的计划。这些策略中的许多都很大程度上依赖于燃料转向零碳燃料，比如氢。目前许多这些过程都是由天然气驱动的，排放大量的二氧化碳，一种温室气体。该研究旨在评估将燃料从天然气转换为氢气的过程中对传热的影响。具体而言，通过实际的实验室实验，评估氢气和甲烷火焰之间传热模式（辐射和对流）的根本差异，其中甲烷将被用作天然气替代品。热通量测量将使用Gardon计热通量传感器进行。发射光谱和热电偶测量也将进行，创建一个强大的方法来评估燃料切换对工业火焰热传递的影响，阐明发现的任何变化的潜在原因。氢气和甲烷混合火焰之间的传热差异已经在这项工作中得到了证明。具体来说，实际的传热到钢坯部分。钢坯部分，悬挂在火焰附近，安装了表面热电偶来考虑这一点。此外，还对几何旋流数的影响进行了评价。完成后，这项工作旨在支持更明智的燃料转换过渡，特别是在南威尔士工业集群，消除未知因素，降低工业加热过程中早期采用氢燃料的风险。

In the South Wales Industrial Cluster, plans to decarbonize industrial heating processes are developing. Many of these strategies greatly rely on fuel switching to zero-carbon fuels, such as hydrogen. Many of these processes currently are fueled by natural gas, emitting vast amounts of carbon dioxide, a greenhouse gas.The research aims to assess the impact on the heat transfer in a process, when switching fuels from natural gas to hydrogen. Specifically, through practical laboratory experiments, evaluating the fundamental differences in heat transfer modes (radiative and convective) between hydrogen and methane flames, where methane is to be used as a natural gas surrogate.The heat flux measurements will be made with a Gardon gauge heat flux sensor. Emission spectroscopy and thermocouple measurements will also be made, creating a robust methodology to evaluate the impact of fuel switching on the heat transfer from industrial flames, elucidating the potential causes for any changes found.Differences in heat transfer, between hydrogen and methane blended flames, have already been shown in this work. Specifically, the practical heat transfer to a steel billet section. The steel billet section, suspended adjacent to the flame, was fitted with surface thermocouples to consider this. In addition, the effect of geometric swirl number was assessed.Upon completion, this work aims to support a more informed fuel-switching transition, specifically in the South Wales Industrial Cluster, removing unknowns and lowering risk for early adopters of hydrogen fueling in industrial heating processes.