In the present study, water electrolysis was employed for Hydroxy gas (HHO) production as a gaseous additive. The engine test was performed using the Diesel, B5, and B20 as pilot fuels. HHO was imported into the engine's combustion chamber at three volumetric flow rates of 3, 4, and 5 cc/s through the inlet manifold as the low-level HHO rate.The engine test setup was a single-cylinder dual-fueled diesel engine at a constant speed (1500 rpm) and full load condition. According to the results, HHO by 3 and 4 cc/s did not have a significant effect on BP, BTE, and BSFC. Using HHO gas by 5 cc/s significantly increased BP by about 2.5, 3.1, and 0.5% compared with Diesel, B5 and B20, respectively, and decreased BSFC by about 11, 7.8, and 13.5% compared with Diesel, B5, and B20, respectively.HHO gas by 5 cc/s significantly decreased CO2 by about 7, 6.3, and 10.6% compared with Diesel, B5, and B20, respectively, and decreased CO emissions by about 6, 14.3, and 21.2% compared with Diesel, B5 and B20, respectively. However, the use of HHO gas and biodiesel increased NOx emission by about 16, 13.7, and 10.5% compared with Diesel, B5, and B20, respectively.

在本研究中，水电解被用作气态添加剂生产羟基气体（HHO）。使用柴油，B5和B20作为引燃燃料进行了发动机测试。HHO通过进气歧管以3、4和5 cc / s的三种体积流量作为低水平HHO速率输入到发动机的燃烧室中。发动机测试设置为单缸双燃料柴油发动机恒定速度（1500 rpm）和满载条件。根据结果​​，HHO的3和4 cc / s对BP，BTE和BSFC没有显着影响。与柴油，B5和B20相比，以5 cc / s的HHO气体分别显着提高BP约2.5、3.1和0.5％，与柴油，B5和B20相比，使BSFC降低约11、7.8和13.5％。分别以5 cc / s的HHO气体使CO2显着降低约7、6.3，与Diesel，B5和B20相比分别降低了10.6％和10.6％，并且与Diesel，B5和B20相比分别降低了约6、14.3和21.2％的CO排放。但是，与柴油，B5和B20相比，使用HHO气体和生物柴油分别使NOx排放增加了约16、13.7和10.5％。