Emission free compressed air powered energy system can be used as the main power source or as an auxiliary power unit in vehicular transportation with advantages of zero carbon emissions and improved the overall energy efficiency of the integrated energy system. This work presented a detailed technological development of compressed-air energy systems. The studies on compressed-air powered powertrain in transport sector are summarised including the design of new valve technologies, prototype developments, and integration of the system. Furthermore, compressed-air based hybrid technologies using different pneumatic hybridisation methods are comprehensively presented aiming to provide in-depth insight on the advantages and limitations of different pneumatic hybridisation. The opportunities and challenges for the compressed-air based technology in transport application are discussed. It can be expected the transformation of energy systems to a cleaner and more sustainable future would promote the technological development and implementation of Zero-Emission compressed air solutions.

无排放压缩空气动力能源系统可以用作车辆运输中的主要动力源或辅助动力单元，其优点是碳排放量为零，并提高了集成能源系统的整体能源效率。这项工作介绍了压缩空气能源系统的详细技术发展。总结了运输领域对压缩空气动力传动系的研究，包括新阀门技术的设计，原型开发和系统集成。此外，全面介绍了使用不同气动杂交方法的基于压缩空气的混合技术，旨在深入了解不同气动杂交的优点和局限性。讨论了基于压缩空气的技术在运输应用中的机遇和挑战。可以预见，将能源系统改造为更清洁，更可持续的未来，将促进零排放压缩空气解决方案的技术发展和实施。