Description
Amid carbon emission reduction efforts, the engine industry is inevitably shifting toward high efficiency and clean operation. Blending low carbon, high calorific value alternative fuels effectively reduces engine emissions, but their engineering application in high pressure common rail injection systems remains a major technical barrier. How fuel properties affect nozzle internal flow and spray atomization still lacks thorough investigation. Constrained by optical diagnostic limitations and flaws in blended fuel experiments, fundamental research on fuel property impacts on cavitation and atomization remains limited. This monograph develops internal flow diagnostic methods for alternative fuels, experimentally examines fuel property effects on nozzle internal flow and atomization via a high pressure common rail visual platform, and studies single droplet impingement for fuels with varied properties. The results offer theoretical and experimental support for low carbon fuel injection system design and fuel optimization, advancing clean and efficient engine technology development.