Abstract This paper presents a novel system of adding clean hydrogen to the natural gas for more effective and more efficient combustion. The proposed system includes a wind-photovoltaic hybrid system where both wind and solar energy sources are simultaneously utilized. A partial amount of electrical power produced by the wind turbines, PEM fuel cell and PV array is fed to the PEM electrolyser while the additional electricity is supplied to the community for use. In the hydrogen-natural gas blends, the fraction of hydrogen is taken from 0% to 20%, respectively, and the natural gas is reduced from 100% to 80% simultaneously to explore hydrogen addition effect in the combustion process. Although natural gas is cleaner than other fossil fuels, adding hydrogen to the natural gas makes it much cleaner and more environmental friendly. The blends of natural gas and hydrogen helps increase the combustion efficiency, decrease oxygen and reduce the emissions, in particular CO2. The results further reveal that the energetic efficiency of the combustion unit rises from 84.83% to 94.83% while the exergetic efficiency rises from 62.52% to 70.16% with the rise in hydrogen fraction from 0% to 20%. It is also found that the CO2 emissions decrease with the rise in hydrogen fraction in hydrogen-natural gas blends.

中文翻译：

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基于热电发电机的生物质气化集成系统的开发与性能研究

摘要 本文提出了一种向天然气中添加清洁氢气以实现更有效和更高效燃烧的新系统。所提议的系统包括风能和太阳能同时使用的风-光伏混合系统。风力涡轮机、PEM 燃料电池和光伏阵列产生的部分电力被馈送到 PEM 电解槽，而额外的电力则供应给社区使用。在氢气-天然气混合物中，氢气的比例分别从0%到20%，同时天然气从100%减少到80%，以探索燃烧过程中的加氢效果。尽管天然气比其他化石燃料更清洁，但在天然气中添加氢气使其更清洁、更环保。天然气和氢气的混合物有助于提高燃烧效率、减少氧气和减少排放，尤其是二氧化碳。结果进一步表明，随着氢含量从0%提高到20%，燃烧装置的能量效率从84.83%提高到94.83%，火用效率从62.52%提高到70.16%。还发现二氧化碳排放量随着氢气-天然气混合物中氢含量的增加而减少。