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Dive into the research topics where Ekrem Buyukkaya is active.

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Featured researches published by Ekrem Buyukkaya.


International Journal of Vehicle Design | 2010

Effect of Soybean Methyl Ester on Diesel Engine Performance and Emissions

Ekrem Buyukkaya

An experimental investigation of the application of biodiesel on a diesel engine performance and emissions has been presented. Engine tests are done for SME and its 5, 15, 30 and 60% blends with diesel fuel. The results showed that the use of biodiesel produced lower smoke opacity (up to 29%) with an increase in the BSFC (lower than 7%). The CO emissions of B5 and B100 were lower 7.5% and 24% than that of the diesel fuel at all load engine conditions, respectively. The BSFC of pure biodiesel was found to be higher by 6.9% than that of the diesel fuel.


Sakarya University Journal of Science | 2017

Bir Elektrik Ark Ocağındaki Enerji Üretiminin ve Transferinin HAD Modeli

Ekrem Buyukkaya

Bu makalede, Fluent hesaplamali akiskanlar dinamigi (HAD) yazilimi kullanilarak, karbon yanmasi ve elektrik ark ile olan enerji uretiminin ve isi gecisinin modellemesi yapilmistir. Hurdanin EAO icerisinde brulorle ergitilmesi sirasinda gerceklesen karbon yanmasi ve elektrik ark radyasyonu ile olusan isi enerjisi ayrintili olarak incelenmistir. Bu nedenle modelleme calismalarinda karbon partikullerin ve elektrottan yayilan radyasyonun yanma reaksiyonlarindan yararlanilmistir. Oncelikle partikul yuzeyi ve gaz reaksiyonlari, enjekte edilen karbonun yanmasi irdelenmistir. Brulor cikisinda kimyasal reaksiyon sonucu, olusan yanma esnasinda cekirdek sicakliginin yaklasik 3000 K degerindedir. Curuf uzerine etki eden sicakligin ise 2200 K mertebelerinde oldugu tespit edilmistir. Radyasyon sicakligi elektrotlarin altinda kalan bolgede en yuksek oldugu ve eriyigin dokuldugu uc kisimla yuklemenin yapildigi bolgede 1850 K mertebelerine dustugu belirlenmistir. Sabit calisma kosullarinda, elektrik enerjisinin % 5.5 civarinda elektrotlar tarafindan absorbe edildigi gorulmustur. Bu calisma sonucunda, tasarim asamasindaki bir elektrik ark ocagi icin yanma ve radyasyon ile enerji uretiminin ve isi gecisinin modellenmesi icin HAD yaziliminin kullanilabilecegi gorulmustur.


Fuel | 2010

Effects of biodiesel on a DI diesel engine performance, emission and combustion characteristics

Ekrem Buyukkaya


Energy Conversion and Management | 2006

Effects of thermal barrier coating on gas emissions and performance of a LHR engine with different injection timings and valve adjustments

Ekrem Buyukkaya; Tahsin Engin; Muhammet Cerit


Surface & Coatings Technology | 2008

Thermal analysis of functionally graded coating AlSi alloy and steel pistons

Ekrem Buyukkaya


Surface & Coatings Technology | 2007

Thermal analysis of a ceramic coating diesel engine piston using 3-D finite element method

Ekrem Buyukkaya; Muhammet Cerit


International Journal of Thermal Sciences | 2008

Experimental study of NOx emissions and injection timing of a low heat rejection diesel engine

Ekrem Buyukkaya; Muhammet Cerit


Energy Conversion and Management | 2013

Effects of trout-oil methyl ester on a diesel engine performance and emission characteristics

Ekrem Buyukkaya; Serdar Benli; Salih Karaaslan; Metin Gürü


Applied Thermal Engineering | 2015

CFD modeling of carbon combustion and electrode radiation in an electric arc furnace

Cemil Yigit; Gokhan Coskun; Ekrem Buyukkaya; Ufuk Durmaz; Hasan R. Güven


Steel and Composite Structures | 2016

Thermo mechanical analysis of a ceramic coated piston used in a diesel engine

Ekrem Buyukkaya; Muhammet Cerit; Mehmet Coban

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