Effects of simultaneous hydrogen enrichment and carbon dioxide dilution of fuel on soot formation in an axisymmetric coflow laminar ethylene/air diffusion flame

Effect of hydrogen supplementation on engine performance and emissions

Effect of hydrogen enrichment on the flame propagation, emissions formation and energy balance of the natural gas spark ignition engine

Diesel-hydrogen dual-fuel combustion and its impact on unregulated gaseous emissions and particulate emissions under different engine loads and engine speeds

Hydrogen addition to acetylene-air laminar diffusion flames: Studies on soot formation under different flow arrangements

Residence time and thermo-chemical environment are important factors in the soot-formation process in flames. Studies have revealed that flow-dynamics plays a dominant role in soot formation process. For understanding the effect of flow dynamics on soot formation and physical structure of the soot formed in different combustion environments two types of laminar diffusion flames of Acetylene and air, a normal diffusion flame (NDF) and an inverse diffusion flame (IDF) have been investigated. The fuel and air supply in the reaction zone in two flame types were kept constant but the interchange of relative position of fuel and air altered the burner exit Reynolds and Froude numbers of gases, fuel/air velocity ratio and flame shape. Soot samples were collected using thermophoretic sampling on transmission electron microscope (TEM) grids at different flame heights and were analyzed off-line in a Transmission Electron Microscope. Soot primary particle size, soot aggregate size and soot volume fraction were measu...

https://journals.sagepub.com/doi/pdf/10.1260/1756-8277.7.1.25

B. P. Pundir

Papers

Hydrogen addition to acetylene-air laminar diffusion flames: Studies on soot formation under different flow arrangements

Role of fluid-dynamics in soot formation and microstructure in acetylene-air laminar diffusion flames