Effect of inlet air temperature on SI engine fueled with diethyl ether-gasoline blends

Abstract

In this study the performance and emission characteristics of spark ignition genset engine fueled with gasoline and diethyl ether (DEE) blends are carried out. The DEE blends are varied from 3%, 6% and 9% by volume in gasoline. A four-stroke single cylinder constant speed spark ignition engine is used for the experiments. The variation in fuel consumption and exhaust emission with respect to two different inlet air temperatures are studied. The concentration of exhaust emissions such as HC, CO, NOx is observed. The parameters such as inlet air temperature, brake specific fuel consumption, relative air to fuel ratio are also measured. It is noticed that 6% DEE blend in gasoline reduced almost reduced HC emission about 57% and also considerable reduction in CO emission at lower air intake temperature. The addition of diethyl ether has an improvement in performance and significant reduction in HC, CO and NOx emissions.

Experimental Research With Diethyl Ether on Engine Performance and Emissions in a Spark Ignition Engine

“…Balaji et al, [14] concluded that fuel consumption increased with the increase of DEE addition at the same engine torque in a spark ignition engine. Kumar et al, [15] found that BSFC increased by 16% and 8.5% with 6% and 3% DEE fuel mixtures respectively at maximum engine load and 22°C inlet air temperature in a SI engine. They have stated that lower heating value of DEE resulted in higher BSFC.…”

“…At 4000 rpm, CO measured lower by about 0.67%, 3.39%, 10.61% and 11.11% with DEE10, DEE20, DEE30 and DEE40 according to pure gasoline. Kumar et al, [15] mentioned that CO reduced for base fuel, 3% DEE, 6% DEE and 9% DEE test fuels at 22°C inlet air temperature from 10% to 75% engine load in a spark ignition engine. Sezer [7] found lower CO emissions with ethanol, DEE fuel blends at middle and high engine loads compared to diesel.…”

“…Thus, HC formation is increased. Kumar et al, [15] stated that HC decreased gradually with base fuel and 3%, 6% and 9% DEE fuel mixtures from 10% to 75% engine load in a spark ignition engine. Balaji et al, [14] concluded that 26.5%, 24.3% and 18.2% reductions were seen on CO, HC and NOx emissions using diethyl ether-unleaded gasoline fuel mixtures for all engine torques in a SI engine.…”

“…They have found that CO, HC and NOx decreased whereas CO2 increased. Kumar et al [15] discussed the influences of inlet air temperature in a gasoline engine fueled with DEE/gasoline mixtures (3%, 6% and 9% DEE). They stated that HC reduced by about 57% with 6% DEE test fuel.…”