Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Sezer, Ismet(2)
- Sezer, I.(1)
Yayınlar
- MakaleYalnız künye2012Scopus SJRQ2EXPERIMENTAL INVESTIGATION THE EFFECTS OF DIETHYL ETHER-DIESEL FUEL BLENDS ON THE ENGINE PERFORMANCE
Sezer, Ismet
In this study, the effects of diethyl ether (DEE)-diesel fuel blends on the performance of a diesel engine investigated experimentally. The blends were prepared with the addition of 2.5, 5, 7.5, and 10 vol. % of DEE with a specified amount of diesel fuel. In the experiments, a single cylinder direct injection (DI) diesel experimental engine was used and compression ratio was fixed at 20. The experiments were performed with neat diesel fuel and DEE-diesel fuel blends at various engine speeds and wide open throttle conditions. The results of the study show that DEE addition to diesel fuel causes to decrease in engine performance parameters, i.e., brake mean effective pressure, brake torque and brake power. The decrement in performance parameters increased with increasing blending ratio. The maximum decrement in brake mean effective pressure was obtained with DEE10 blend as about 5.1%. However, brake thermal efficiency increases and brake specific fuel consumption decreases up to 7.5% DEE blending ratio. The maximum increment in brake thermal efficiency was obtained with DEE7.5 blend as about 10.9%. The same fuel blend gives about 8.7% reduction in brake specific fuel consumption. Additionally, exhaust gas temperature decreases and air excess coefficient increases with increasing DEE blending ratio.
AtıfWoS4İncele - MakaleYalnız künye2011Scopus SJRQ1Thermodynamic, performance and emission investigation of a diesel engine running on dimethyl ether and diethyl ether
Sezer, Ismet
This study investigates the use of dimethyl ether and diethyl ether in diesel engines as alternative fuels. A direct injection diesel engine was simulated via a thermodynamic cycle model for investigation. Thermodynamic and performance parameters besides emissions determined and compared for diesel, dimethyl ether and diethyl ether fuels at two different states. The results showed that dimethyl ether and diethyl ether presented a lower cylinder temperature and pressure, and thus a lower engine performance than diesel fuel for the equal injection conditions. The brake power declines about 32.1% and 19.4% at 4200 rpm while brake specific fuel consumption increases about 47.1% and 24.7% at 2200 rpm for dimethyl ether and diethyl ether, respectively. Engine performance for dimethyl ether and diethyl ether extensively improves for the same equivalence ratio condition, but a more amount of fuel is needed about 64% for dimethyl ether and 32% for diethyl ether. The gains in the brake power by dimethyl ether and diethyl are about 13.6% and 6% at 4200 rpm compared to diesel fuel. The brake specific fuel consumption is also higher about 43.5% for dimethyl ether and 23.6% for diethyl ether than diesel fuel. The brake thermal efficiency for dimethyl ether and diethyl is generally better than diesel fuel. The lower carbon dioxides are obtained by dimethyl and diethyl ethers at all conditions, while carbon monoxide and nitrogen oxide are slightly higher for dimethyl and diethyl ethers at equal equivalence ratio condition. (C) 2011 Elsevier Masson SAS. All rights reserved.
AtıfWoS109OpenAlex150İncele - MakaleYalnız künye2011Scopus SJRQ1Alternative gaseous fuels in port fuel injection spark ignition engines
Sezer, I.
This paper investigates the use of alternative gaseous fuels in port fuel injection spark ignition engines via the Lotus engine simulation program. To this end, the engine model for a port fuel injection spark ignition engine was designed, and engine performance was determined separately for gasoline and alternative gaseous fuels, i.e. compressed natural gas and liquefied petroleum gas. According to the results, brake thermal efficiency increases while engine performance and fuel consumption decrease with methane and propane when compared to gasoline under the same conditions. While a slight increase in the fuel/air equivalence ratio of gaseous fuels improves the engine performance, fuel consumption remains almost stable. Another factor that enhances engine performance is the increasing compression ratio for methane and propane. In this manner, performance values that are closer/equal to gasoline are achieved. Under these conditions, fuel consumption decreases notably, while significant increases are observed in brake thermal efficiency.
AtıfScopus4WoS4OpenAlex3İncele