Suat SARIDEMİR, Necdet ALÇELIK, İLYAS UYGUR

Biyodizel-Dizel Yakıt Karışımlarının Motor Titreşimine Olan Etkisinin İncelenmesi

Alternatif yenilenebilir yakıtlardan biri olan biyodizel günümüzde popüler hale gelmiştir. Titreşim dizel motorların önemli karakteristiklerinden biridir. Bu çalışmanın amacı biyodizel ve standart dizel yakıt karışımlarının tek silindirli direk enjeksiyonlu bir motorun titreşimine olan etkilerini incelemektir. Deney motoru için minimum titreşim oluşturan yakıt tipi yakıt karışımları içerisinden belirlenmiştir. Tüm yakıt karışımları için en büyük titreşim değeri eksenel yönde, en küçük titreşim değeri ise yanal eksende elde edilmiştir. Motor titreşim değeri, tüm yakıtlar için motor devrine bağlı olarak artış göstermiştir. En büyük toplam titreşim değeri Ab15 yakıt karışımı ile elde edilmiştir. En küçük toplam titreşim değeri ise Ab50 yakıt karışımı ile elde edilmiştir. Tüm yakıt karışımları için eksenel (y) yönde Ch2 kanalından elde edilen titreşim değerlerinin zaman bölgesi olarak en büyük olduğu, yanal (x) eksende Ch1 kanalından elde edilen titreşim değerlerinin ise en küçük olduğu görülmüştür.

Investigating The Effect Of Biodiesel And Petrodiesel Fuel Blends On Diesel Engine Vibration

One of the alternative renewable fuels, biodiesel has become popular nowadays. Vibration is one of the important characteristics of the diesel engine. The aim of this study is to show the effects of biodiesel and petrodiesel fuel blends on a single cylinder direct ignition diesel engine vibration. The fuel type that generates the minimum vibration for the test engine was determined from fuel blends. The biggest vibration value was obtained in the axial direction while the minimum vibration value was obtained at the lateral axis for all fuel blends. Engine vibration value was increased depending on the engine speed for all fuels. The biggest vibration total value was obtained with the Ab15 fuel blend. The smallest vibration total value was obtained with the Ab50 fuel blend. It was found that the maximum vibration values were obtained from channel Ch2 in the axial (y) direction. Moreover, the minimum vibration values were obtained from channel Ch1 in the lateral (x) direction on a time domain.

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Dobrucali E, Gonca G, 2016, ''Theoretical and experimental study on the performance of a diesel engine fueled with diesel-biodiesel blends'', Renewable Energy; 93: 658-66
Sanjid A, Abul Kalam Md, Masjuki HHj, Varman M, Mohd Zulkifli NWB, Joynul Abedin Md, 2016, ''Performance and emission of multi-cylinder diesel engine using biodiesel blends obtained from mixed inedible feedstocks'', Journal of Cleaner Production;112:4114-4122
Obed MA, Mamat R, Abdullah NR, Abdul Adam A, 2016, ''Analysis of blended fuel properties and engine performance with palm biodieselediesel blended fuel'', Renewable Energy; 86: 59-67
Datta A, Mandal BK, 2016, ''A comprehensive review of biodiesel as an alternative fuel for compression ignition engine'', Renewable and Sustainable Energy Reviews;57:799-821
Senthilkumar S, Sivakumar G, Manoharan S, 2015, ''Investigation of palm methyl-ester bio- diesel with additive on performance and emission characteristics of a diesel engine under 8- mode testing cycle'', Alexandria Engineering Journal; 54:423-428
Taghizadeh-Alisaraei A, Ghobadian B, Tavakoli-Hashjin T, Mohtasebi SS, 2012, ''Vibration analysis of a diesel engine using biodiesel and petrodiesel fuel blends'', Fuel;102: 414-422
Uludamar E, Tosun E, Aydın K, 2016, ''Experimental and regression analysis of noise and vibration of a compression ignition engine fuelled with various biodiesels'', Fuel;177:326-333
Heidary B, Hassan-Beygi SR, Ghobadian B, Taghizadeh A, 2013, ''Vibration analysis of a small diesel engine using diesel-biodiesel fuel blends'', Agric. Eng. Int. CIGR Journal;15(3),117-126
Yıldırım, H., Çınar, A., Şayli, Ö., Köylü, H., 2015, ''Vibration and noise analysis of an engine fuelled with diesel and biodiesel blends'', International Conference On Advances in Mechanical Engineering, ICAME '15, İstanbul
Sarıdemir S, 2013, ''The effect of dwell angle on vibration characteristics of camshaft bearing housings'', Journal of Mechanical Science and Technology; 27 (12):3571-77
Sarıdemir S, Saruhan H, 2014, Experimental analysis of maximum valve lift effects in cam- follower system for internal combustion engines'', Journal of Mechanical Science and Technology; 28 (9): 3443-3448