Detailed evaluation of combustion, performance and emissions of ethyl proxitol and methyl proxitol-safflower biodiesel blends in a power generator diesel engine

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作   者：

Aydin, Selman; 

作者机构：

TR-72060 Batman;  Automot Engn Dept;  Batman Univ;  Turkey;  Fac Technol; 

关键词：

Ethyl proxitol;  Power generator diesel engine;  Methyl proxitol;  Safflower biodiesel;  Emission;  Combustion; 

期刊名称：

Fuel

i s s n：

0016-2361

年卷期：

2020 年 270 卷 Jun.15 期

页   码：

117492.1-117492.8

页   码：

摘   要：

In this study, methyl proxitol, ethyl proxitol and their blends with biodiesel were tested for the first time. The main purpose of using these new fuel additives is to enable the usage of high percentages of pure biodiesel as fuel in diesel engines. The biodiesel was obtained from safflower oil by the method of transesterification. Safflower oil biodiesel blends were prepared as; 50% biodiesel-50% ultra-low sulfur diesel (ULSD) named as B50, 90% biodiesel-10% methyl proxitol named as MP10 and 90% biodiesel-10% ethyl proxitol named as EP10. These test fuels, were compared with ULSD by taking combustion, performance and emission values in a diesel engine generator system under 3.6 kW, 7.2 kW and 10.8 kW loads corresponding to just about 20%, 40% and 60% of the full power of the generator at constant engine speed of 1500 rpm. According to test results, although the brake specific fuel consumptions (BSFC) of MP10, EP10, B100 and B50 were higher compared to the ULSD on all loads, these test fuels gave almost identical results. Experimental results on combustion parameters of CGP, CHR, HRR, MFB knock density and MGT showed that the results of EP10 and MP10 fuels were considerably similar to the results of ULSD with improved performance and emission indicators in all engine operation conditions. For blend fuels of EP10 and MP10, HC and CO emissions were significantly reduced, while NOx was similar and CO2 increased in all loads compared to ULSD.