Search

The combustion of homogeneous charge compression ignition (HCCI) fuelled with methanol was achieved on a modified CI engine by heating the intake air. The effects of intake temperature and mixture concentration on HCCI combustion characteristics and emissions were analyzed in this paper. Initially the experimental run with pure diesel then the piston is modified with CE Coated Engine - Aluminium oxide Al2O3 and addition of methanol on HCCI engine, then the same type of experimental have been carried under the Lemon Grass Methyl Ester (LGME) with coating and methanol in HCCI Engine. The result of the experiment with performance of BTE increases with coated engine and decreases by addition of methanol, LGME blend results has decreases and increases with (CE) and decreases by addition of methanol. BSFC results increased with all condition because the blend and thermal coating had a higher viscosity and lower energy content. The emission results such as CO, HC NoX and smoke were the NoX is slightly increased when compared to other emission in future the impact of adopting a varied compression ratio and technique to analysis the NoX emission control. [ABSTRACT FROM AUTHOR]

In this study, the RSM technique is used to estimate the highest biodiesel yield with respect to different parameters such as reaction temperature, molar ratio, catalyst concentration, and reaction time were considered. Algae oil, gathered from lakes and ponds, was the primary raw material used for this work. Algae oil production was warmed to 180 degrees Celsius to remove moisture before filtration using sterile method to remove solid contaminants. In order to determine appropriate reaction parameters, preheat-assisted in real time transesterification was performed. Response surface methodology with a central composite design was utilized to test various experimental circumstances. The catalyst concentration (6-12 wt.%) and reaction duration (3-5 hr) were the two independent variables. The highest biodiesel production was found below optimized conditions of 12 wt.% catalyst concentration and 5 H reaction time with constant methanol concentration (15 ml), yielding 89.5%. Biodiesel yield is comparing with 2d graphical representation on reaction temperature vs catalyst concentration. From the 2d surface which understand the biodiesel yield is increased due the reaction temperature at 2.3 percentage (i.e.) 62.5°C to 65°C and Catalyst concentration (wt. %) at 4.9 percentage (i.e.) 9.8 wt.% to 11.5 wt.%. The objective of the research has produced low-cost feedstock with the highest yield for the algae methyl ester production. [ABSTRACT FROM AUTHOR]

In this study, the response surface methodology (RSM) optimization technique was used to look at the effects of load, Pumpkin Methyl Ester (PME), and compression ratio enhanced diesel on engine performance and exhaust emission. Biodiesel blend PME (20, 40, and 60%) and compression ratio (16.5, 17.5, and 18.5) were chosen to get the maximum BTE and the least BSFC, NOx, CO, smoke, and HC. The engine was run using the RSM method, which was based on the load (0–100%). The findings showed that the load, the PME, and the compression ratio concentration of the engine had a big effect on the response variables. The analysis of variance (ANOVA) for the built quadratic models showed that each model was a good fit. Also, an optimal was found by making sure that the user-defined historical plan of an experiment was as good as it could be. The perfect study factors were a load of 50%, a PME Blend of 40%, and a compression ratio of 17.5%. This gave a maximum BTE of 32.5%. When the load is 100%, the PME Blend is 40, and the compression ratio is 16.5, the fuel use goes down by 0.2 kg/kW.h. CO and HC emissions went up by 28.34% and 20.66%, while smoke and NOx emissions went down by 14.09% and 42.04%. [ABSTRACT FROM AUTHOR]

The relationship between engine load with Thermal Coating Piston - Yttria Stabilized Zirconia (YSZ) and Ferric Chloride (FeCl3) as additive on engine Using conventional diesel and Pumpkin Methyl Ester (PME). Initially the experimental run with pure diesel then the piston is modified with Yttria Stabilized Zirconia and addition of FeCl3, then the same type of experimental have been carried under the Pumpkin Methyl Ester with coating (YSZ) and FeCl3 additive. The result of the experiment with performance of BTE increases with coated engine (YSZ) and decreases by addition of FeCl3, PME blend results has decreases and increases with (YSZ) and decreases by addition of FeCl3. BSFC results increased with all condition because the blend and thermal coating had a higher viscosity and lower energy content. The emission results such as CO, HC NoX and smoke were the NoX is slightly increased when compared to other emission in future the impact of adopting a varied compression ratio and technique to analysis the NoX emission control. [ABSTRACT FROM AUTHOR]