• MATHEMATICAL MODELING OF HC EMISSIONS RELEASED by OIL FILM for GASOLINE and GASEOUS FUELS 

  Karamangil, M. Ihsan; Yenice, Seckin; Kaynakli, Omer; Sürmen, Ali (Gazi Universitesi, 2014)

  Oil film on cylinder liner has been suggested as a major source of engine-out hydrocarbon emissions. In this study, a mathematical modeling for the rate of absorption/desorption of the fuel in the oil film has been developed ...

• Mathematical modeling of hydrocarbon emissions from oil film for different fuels 

  Karamangil, M. Ihsan; Sürmen, Ali; Yenice, Seckin (Elsevier, 2014)

  Oil film on the inner surface of the cylinder liner is one of the major sources of the vehicle-out HC emissions as fuel vapor is absorbed by the oil film under high pressure and then released after late expansion stroke ...

• Enhancing the heavy load performance of a gasoline engine converted for LPG use by modifying the ignition timings 

  Erkus, Baris; Karamangil, M. Ihsan; Sürmen, Ali (PERGAMON-ELSEVIER SCIENCE LTD, 2015)

  This paper presents the results of the experiments conducted on a spark-ignition (SI) engine fuelled with liquefied petroleum gas (LPG) by varying the ignition timing at the excess air coefficients of 1.0 and 1.3. Experiments ...

• Development of a variable-profile cam to enhance the volumetric efficiency of IC engines 

  Sürmen, Ali; Arslan, Ridvan; Kopmaz, Osman; Avci, Atakan; Karagoz, Irfan; Karamangil, M. Ihsan (INDERSCIENCE ENTERPRISES LTD, 2017)

  In this study, it is aimed to develop a new concept camshaft for continuously variable valve timing (CVVT). The concept is based on obtaining a curvilinear cam surface by integrating a number of conventional cam contours. ...

• Optimal design of automobile structures using moth-flame optimization algorithm and response surface methodology 

  Yıldız, Betül Sultan (WALTER DE GRUYTER GMBH, 2020)

  In order to present an integrated approach to optimal automobile component design, this research is focused on a shape optimization problem of a bracket using moth-flame optimization algorithm (MFO) and response surface ...

• Numerical analysis of a reactivity controlled compression ignition engine 

  Görmez, Gonca; Ceper, Bilge Albayrak (Elsevier Ltd, 2021)

  Nowadays, internal combustion engines have great importance due to the increasing need for vehicles. Since the engines in the vehicles cause air pollution, different combustion strategies are being tried more and more every ...

• Investigation of adhesive wear properties of glass fiber reinforced polyester composites having different chemical compositions 

  İlhan, Recep; Feyzullahoglu, Erol (SAGE Publications Ltd, 2021)

  Glass fiber reinforced polyester composite materials are widely used in various areas due to their high specific strength, low weight, excellent elasticity, high corrosion resistance, and high thermal stability. This study ...

• Estimation of adhesive wear behavior of the glass fiber reinforced polyester composite materials using ANFIS model 

  Yilmaz, Serhat; İlhan, Recep; Feyzullahoglu, Erol (SAGE Publications Ltd, 2021)

  Glass fiber reinforced polyester (GFRP) composite materials are widely used in various applications. The prediction of wear values for composite materials is very complex and nonlinear phenomena. Artificial intelligence ...

• Pd, Ag and Rh doped (8,0) single-walled carbon nanotubes (SWCNTs): A DFT study on furan adsorption and detection 

  Yüksel, Numan; Köse, Ahmet; Fellah, Mehmet Ferdi (Elsevier, 2021)

  In this study, the use of single-walled carbon nanotubes (SWCNTs) with doping Pd, Ag and Rh as both a sensor and an adsorbent for furan molecule was investigated by Density Functional Theory (DFT) method. The WB97XD method ...

• Solar process heat for sustainable production of concentrated peach puree 

  Colak Gunes, Neslihan; Güngör, Emrah; Gunes, Mustafa (Blackwell Publishing Inc., 2021)

  The food industry is one of the most suitable sectors for solar process heat applications. Concentrating solar power (CSP) systems generate steam using mirrors or lenses to concentrate a large area of sunlight onto a ...

• Investigation of the usage potential of the evacuated tube and the flat plate collectors to assist an absorption chiller 

  Düzcan, Ahmed; Kara, Yusuf Ali (Elsevier Ltd, 2021)

  In this study, the usage potential of the evacuated tube collectors (ETCs) and the flat plate collectors (FPCs) for assisting an absorption chiller (AC) are comparatively investigated by using TRNSYS software. ETC and FPC ...

• Assessment of wind energy potential: a case study 

  Düzcan, Abdullah; Kara, Yusuf Ali (Bellwether Publishing, Ltd., 2021)

  Utilization and investments of wind energy have been speedily rising in the world due to harmful side of the fossil fuels. Assessment of wind energy potential analysis is a must before making investment decision of wind ...

• An acoustic structure design supported by shear thickening fluid for sound absorption 

  Aslan, Ramazan; Turan, Osman (Elsevier Ltd, 2021)

  In this study, an acoustic structure consisting of cellular and perforated panel absorbers has been designed to noise control. Then, the sound absorption behaviour of designed acoustic structure has been investigated ...

• Exergoeconomic and exergoenvironmental analysis of a coal-fired thermal power plant 

  Düzcan, Abdullah; Kara, Yusuf Ali (Springer Science and Business Media Deutschland GmbH, 2021)

  When evaluating a thermal system, exergy analysis is performed in addition to energy analysis to determine the location and quantity of losses in the system. In this study, energy, exergy, exergoeconomic and exergoenvironmental ...

• An Investigation of Thermal Comfort for Mold, Welding and Turning Technicians and the Effects on Performance in Naturally Ventilated Area 

  Sökmen, Kemal Fürkan (2019)

  In this study, thermal comfort measurements were made for mold, welding, and turning technicians in naturally ventilated industrial establishments. Metabolic rates were determined as 100 W/m2 for welding and turning and ...

• DOĞAL YOL İLE HAVALANDIRILAN BİR SANAYİ KURULUŞUNDA ISIL KONFOR İNCELEMESİ VE GİYSİ FAKTÖRÜ, METABOLİK ORAN, ÇALIŞAN AĞIRLIĞININ KONFORA ETKİLERİNİN ARAŞTIRILMASI 

  Sökmen, Kemal Fürkan (2018)

  Bu çalışmada otomotiv sektöründeki firmanın termal konfor şartları ve çalışan kilosu, giysi yalıtım faktörü, metabolik oranın termal konfor üzerinde etkilerini incelenmiştir. Konfor ölçümleri 6 bölümde yapılmıştır. Ölçümlerin ...

• PİSTONLU YARI-HERMETİK SOĞUTMA KOMPRESÖRÜ KRANK MİLİNİN SANKİ-STATİK YAKLAŞIMLA SONLU ELEMANLAR ANALİZİ 

  Lekesiz, Hüseyin (2018)

  Yarı-hermetik soğutma kompresörleri, arıza durumunda kolay müdahale kolaylığı sağlarlar. Bu kompresörlerde kullanılan krank milleri hem hafif hem de dayanıklı olmalıdır. Bu sebeple, doğru tasarım ve doğru malzeme seçimi ...

• Numerical investigation of laminar mixed convection in a square cross-sectioned cylindrical annular enclosure 

  Turan, Osman (2020)

  Abstract:Steady-state laminar mixed convection of Newtonian fluids in a square cross-sectioned cylindrical annular enclosure with rotating inner wall and heated top cover has been numerically analysed based on axisymmetric ...

• Taşıt Elemanlarının Yapısal Optimizasyon Teknikleri ile Optimum Tasarımı 

  Yıldız, Ali Rıza (2017)

  Otomotiv endüstrisinde optimum ürünlerin geliştirmesi süreci ürün maliyeti üzerinde önemli etkiye sahiptir. Bu nedenle, ürün tasarım sürecinde, optimum tasarımın elde edilmesi gerekmektedir. Optimizasyon çalışmaları sırasında ...

• EFFECT OF FORMING HISTORY ON CRASHWORTHINESS OF A SPOT-WELDED AND DOUBLE-HAT ELLIPTICAL THIN-WALLED TUBE 

  Beytüt, Hüseyin; Karagöz, Selçuk; Özel, Serkan (2019)

  Thin-walled structures (TWTs) are widely used in automotive and aerospace industries due to their easy formability, high energy absorption capacity, low cost, and lightweight advantages. In this study, considering the ...

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