Worldwide energy supply is rapidly shifting towards more sustainable and cleaner power generation technologies including solar PV, wind turbines and natural gas. The co-combustion of fuel blends, consisting of renewably-generated H₂ and CH₄, offer numerous operational advantages of gas turbines, including reduced turbine CO and NO_x emissions. In this study, the combustion of H₂ and CH₄ was investigated experimentally, in a combined heat and power micro turbine (1–3 kW_e). Three fuel scenarios were considered: 100 vol% CH₄, a 15 vol% H₂/CH₄ blend, and a 20 vol% H₂/biogas blend. These blends were used to demonstrate the micro turbine’s flexibility, simulating the addition of renewable H₂ to natural gas and biogas. For the 20 vol% H₂/biogas blend, CO and NO_x emissions showed respective energy-equivalent reductions of 29.8% and 47.1% (compared with the 100 vol% CH₄ fuel). Our findings contribute to the operational knowledge of micro gas turbines, obtaining cleaner combustion characteristics via co-combustion, and ultimately provide a solution for off-grid power applications and emergency back-up power systems.

全球能源供应正在迅速转向更加可持续和更清洁的发电技术，包括太阳能光伏，风力涡轮机和天然气。混合燃料的混合燃烧，由可再生产生ħ ₂和CH ₄，提供燃气轮机的许多操作上的优点，包括减少涡轮CO和NO _X排放物。在这项研究中，在热电联产微型涡轮机（1-3 kW _e）中，对H ₂和CH ₄的燃烧进行了实验研究。三个燃料场景被认为是：100体积％的CH ₄，15体积％的H ₂ / CH ₄混合物，和20体积％H ₂/沼气混合。这些混合物用于演示微型涡轮机的灵活性，模拟了向天然气和沼气中添加可再生H _2的过程。对于20 vol％的H ₂ /沼气混合物，CO和NO _x排放分别显示了29.8％和47.1％的能量当量减少（与100 vol％的CH ₄燃料相比）。我们的发现有助于微型燃气轮机的运行知识，通过共燃获得更清洁的燃烧特性，并最终为离网电力应用和紧急备用电力系统提供解决方案。