Experimental Investigations of a Variable Compression Ratio Diesel Engine Fuelled with Neem Methyl Ester (NeME).

Abstract

Investigations are carried out to verify the performance and emission of a variable compression diesel engine operated with pure Neem oil Bio diesel (NeME), and pure Diesel at various compression ratios starting from 15:1, 17:1, 19:1 and 21:1 to compare the results at each compression ratio considering pure diesel as base line. The experiment has been conducted at fixed engine speed of 1500 rpm and engine tests have been conducted to get the comparative measures of Specific Fuel Consumption (SFC), Brake thermal efficiency (BTh) and emissions such as CO, CO 2 , HC, and NO to study the impact of pure NeME, with respect to Compression ratio and its implementation. A notable improvement in between NO and HC was observed maintaining a high thermal efficiency by a suitable combination of Neem biodiesel and compression ratio. The results of pure NeME operated under compression ratio 17:1 were found encouraging in all respects of performance and improved emission characteristics.

Nano-Rheology and its Application in Controlled-Release Fragrance Nanocapsules Suspensions

“…Shanker et al [20] found that the viscosity increases with volume fraction and exponentially decreases with increasing temperature. That is different from those reported by Chen et al [21], who show that the viscosity was increasing with the increment of weight percentages and decrease with the temperature.…”