全球对能源日益增长的需求,再加上与化石燃料相关的环境问题,导致了替代燃料来源的探索。气态生物燃料,来自有机物质,由于其可再生性质和清洁燃烧特性而受到关注。本文广泛探讨了气态生物燃料的生产途径,包括沼气,合成气,和氢,就各种来源和过程提供有见地的讨论。能量含量,物理,分析了气态生物燃料的化学性质,强调它们作为传统燃料可行替代品的潜力。沼气的独特特性,生产者气体,强调了影响IC发动机燃烧特性和发动机效率的氢。此外,这篇综述系统地回顾了气态生物燃料的增强技术,包括提高质量的战略,纯度,和燃烧效率。各种方法,从沼气的底物预处理到氢气的膜分离,说明提高燃料性能的有效手段。严格检查制动热效率等性能参数,特定燃料消耗和排放特性,如NOx,CO,双燃料模式下气态生物燃料的CO2,HC强调效率和环境影响,为它们作为发动机燃料的可行性提供有价值的见解。这项审查的结果将成为研究人员的宝贵资源,工程师,以及参与替代燃料和可持续运输的决策者,同时还强调需要进一步研究和开发,以充分释放IC发动机中气态生物燃料的潜力。
The increasing global demand for energy, coupled with environmental concerns associated with fossil fuels, has led to the exploration of alternative fuel sources. Gaseous biofuels, derived from organic matter, have gained attention due to their renewable nature and clean combustion characteristics. The paper extensively explores production pathways for gaseous biofuels, including biogas, syngas, and
hydrogen, providing insightful discussions on various sources and processes. The energy content, physical, and chemical properties of gaseous biofuels have been analysed, highlighting their potential as viable alternatives to conventional fuels. Distinctive properties of biogas, producer gas, and
hydrogen that impact combustion characteristics and engine efficiency in IC engines are underscored. Furthermore, the
review systematically reviews enhancement techniques for gaseous biofuels, encompassing strategies to augment quality, purity, and combustion efficiency. Various methods, ranging from substrate pretreatment for biogas to membrane separation for
hydrogen, illustrate effective means of enhancing fuel performance. Rigorous examination of performance parameters such as brake thermal efficiency, specific fuel consumption and emissions characteristics such as NOx, CO, CO2, HC of gaseous biofuels in dual-fuel mode emphasizes efficiency and environmental impact, offering valuable insights into their feasibility as engine fuels. The findings of this
review will serve as a valuable resource for researchers, engineers, and policymakers involved in alternative fuels and sustainable transportation, while also highlighting the need for further research and development to fully unlock the potential of gaseous biofuels in IC engines.