An experimental study of the biogas–diesel HCCI mode of engine operation

Assessment of sustainable biogas production from de-oiled seed cake of karanja-an organic industrial waste from biodiesel industries

“…The methane in the biogas, obtained from J. curcas, municipal solid waste and CD was in the range of 60-68%,375 40-60% and 50-70%[14,20]. The biogas obtained from sample S 3 376 had about 17% CO 2 , which acted as an agent for the reduction of 377 smoke and NO x emissions, when it was used in a HCCI and dual 378 fuel engines[21][22][23]. Also, the use of a natural gas grid for biogas 379 delivery seems to be reasonable and expands the opportunities After anaerobic digestion, there was a little quantity of digested 383 slurry, noticed in all the reactors, which could not produce biogas, 384 but in nature it was an organic waste.…”

An Artificial Neural Network and Genetic Algorithm Optimized Model for Biogas Production from Co-digestion of Seed Cake of Karanja and Cattle Dung

“…A comparison of the biogas constituents obtained from the samples S 1 , S 2 , S 3 , S 4 and some of the commonly available feed stocks are given in Table 6 from Jatropha curcas, municipal solid waste and the CD were in the range of 60-68, 40-60 and 50-70 % [21,35]. The biogas obtained from sample S 3 had about 17 % CO 2 , which acted as an agent for the reduction of smoke and NO x emissions, when it was used in an SI (spark ignition), CI (compression ignition), HCCI (homogeneous charge compression ignition) and dual fuel engines [36][37][38][39][40].…”

An Introduction to a Homogeneous Charge Compression Ignition Engine

“…Knocking also occurs under certain operating conditions and reduces the operating range of the engine [29,38,[40][41][42]. Emissions regulations are becoming more stringent and NO x and soot emissions levels in HCCI engines have been greatly reduced without sacrificing efficiency, which is close to that of CI engines [38]. However, knocking is still the major issue because of its sudden onset and it results in a bad engine performance.…”

“…On the other hand, HCCI engines have some disadvantages such as high levels of unburned hydrocarbons (UHC) and carbon monoxide (CO) [29,38,39]. Knocking also occurs under certain operating conditions and reduces the operating range of the engine [29,38,[40][41][42]. Emissions regulations are becoming more stringent and NO x and soot emissions levels in HCCI engines have been greatly reduced without sacrificing efficiency, which is close to that of CI engines [38].…”

“…The ability to be used in any engine configuration: automobile engines, stationary engines, heavy duty engines or small engines [25,35,36]. On the other hand, HCCI engines have some disadvantages such as high levels of unburned hydrocarbons (UHC) and carbon monoxide (CO) [29,38,39]. Knocking also occurs under certain operating conditions and reduces the operating range of the engine [29,38,[40][41][42].…”