USE OF PROPANOL WITH DIESEL: EFFECTS ON FUEL CONSUMPTION AND EXHAUST EMISSIONS OF DIESEL ENGINE

Öz

In this experimental study, the influences of propanol and diesel mixtures on direct injection single cylinder diesel engine fuel consumption and exhaust emissions were investigated. Volumetrically, 3% propanol - 97% diesel and 6% propanol - 94% diesel blends were used as test fuels.  Fuel properties of the test fuels were analyzed and found different from those of diesel fuel. In comparison with diesel, viscosity, heating value, flash point, density and Cetane number decreased slightly. The engine tests were carried out at full load condition of the test engine. Specific fuel consumption values of the blend fuels showed decreasing trend. In general, exhaust emission values of the blends improved. CO and particulate emission values decreased up to 25.37% and up to 12.08%, respectively. NO_x emission values with the blend fuels did not change, considerably. 

Anahtar Kelimeler

• Combustion,Alcohols,Diesel engine,Exhaust emissions

PROPANIN DİZEL YAKITIYLA KULLANIMI: DİZEL MOTOR YAKIT TÜKETİMİ İLE EGZOZ EMİSYONLARI ÜZERİNDEKİ ETKİLERİ

Öz

Bu deneysel çalışmada propan-dizel yakıt karışımlarının direk enjeksiyonlu tek silindirli dizel motorda kullanımının yakıt tüketimi ve egzoz emisyonları üzerindeki etkisi araştırılmıştır. Hacimsel olarak %3 propan-%97 dizel ve %6 propan-%94 dizel içeren karışımlar test yakıtı olarak kullanılmıştır. Test yakıtlarına ait yakıt özellikleri dizel yakıt özelliklerine göre farklılık göstermiştir. Dizel yakıtıyla kıyaslandığında, viskozite, ısıl değer, parlama noktası ve setan değerlerinde düşük oranda azalma olmuştur. Motor testleri tam yük şartlarında gerçekleştirilmiştir. Karışımların özgül yakıt tüketimi değerlerinde düşme eğilimi gözlemlenmiştir. Genel olarak, karışım yakıtlara ait egzoz emisyonu değerlerinde iyileşmeler sağlanmıştır. CO ve Partikül madde emisyon değerlerinde sırasıyla % 25.37 ve %12.08’lere ulaşan azalmalar elde edilmiştir. NO_x emisyonu değerlerinde kayda değer bir değişim gözlemlenmemiştir.

Anahtar Kelimeler

• Yanma,Alkoller,Dizel motor,Egzoz emisyonları

Kaynakça

1. [1] TOPGÜL, T., YÜCESU, H.S., ÇINAR C., KOCA A., “The effects of ethanol–unleaded gasoline blends and ignition timing on engine performance and exhaust emissions”, Renewable Energy, 31, 2534–2542, 2006.
2. [2] ZHENG, M., LI, T., HAN, X., “Direct injection of neat n-butanol for enabling clean low temperature combustion in a modern diesel engine”, Fuel, 142, 28–37, 2015.
3. [3] KESKIN, A., YASAR, A., RESITOGLU, I., AKAR, M.A., SUGOZU, I., “The influence of diesel fuel-biodiesel-butanol blends on the performance and emission characteristics of a diesel engine”, Energy Source Part A, 35, 1873-1881, 2013.
4. [4] KESKIN, A., “The influence of ethanol-gasoline blends on spark ignition engine vibration characteristics and noise emissions”, Energy Sources, Part A, vol.32, pp1851-1860, 2010.
5. [5] KESKIN, A., GÜRÜ, M., “The effects of ethanol and propanol additions into unleaded gasoline on exhaust and noise emissions of a spark ignition engine”, Energy Sources, Part A, 33, 2194-2205, 2011.
6. [6] ZHU, L., XIAO, Y., CHEUNG, C.S., GUAN, C., HUANG, Z., “Combustion, gaseous and particulate emission of a diesel engine fuelled with n-pentanol (C5 alcohol) blended with waste cooking oil biodiesel”, Applied Thermal Engineering, 102, 73-79, 2016.
7. [7] BALAMURUGAN, T., NALINI R., “Experimental investigation on performance, combustion and emission characteristics of four stroke diesel engine using diesel blended with alcohol as fuel”, Energy, 78, 356-3563, 2014.
8. [8] ŞAHIN, Z., AKSU, O.N., “Experimental investigation of the effects of using low ratio n-butanol/diesel fuel blends on engine performance and exhaust emissions in a turbocharged DI diesel engine”, Renewable Energy, 77, 279-290, 2015.

9. [9] SUHAIMI, H., ADAM, A., MRWAN, A.G. and et al., “Analysis of combustion characteristics, engine performances and emissions of long-chain alcohol-diesel fuel blends”, Fuel, 220, 682-691.
10. [10] YILMAZ, N, ATMANLI, A., VIGIL, F.M., “Quaternary blends of diesel, biodiesel, higher alcohols and vegetable oil in a compression ignition engine”, Fuel, 212, 462-469, 2018.
11. [11] JAMROZIK, A., TUTAK, W., PYRC, M. and et al., “Study on co-combustion of diesel fuel with oxygenated alcohols in a compression ignition dual-fuel engine”, Fuel, 221, 329-345, 2018.
12. [12] EMIROĞLU, A.O., ŞEN, M, “Combustion, performance and emission characteristics of various alcohol blends in a single cylinder diesel engine”, Fuel, 212, 34-40, 2018.
13. [13] KUMAR, B. R., SARAVANAN, S., “Use of higher alcohol biofuels in diesel engines: A review”, Renewable and Sustainable Energy Reviews, 60, 84-115, 2016.
14. [14] ALPTEKIN, E., “Evaluation of ethanol and isopropanol as additives with diesel fuel in a CRDI diesel engine”, Fuel, 205, 161-172, 2017.