Browsing İmalat Mühendisliği Bölümü by Author "Teknoloji Fakültesi"
Now showing items 21-40 of 60
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Experimental and numerical evaluation of combustion analysis of a DI diesel engine
Temizer, İlker; Ömer, Cihan (Elsevier, 2021)In this study investigated both experimentally and numerically in detail the combustion characteristics of a diesel engine operating with biodiesel fuel produced from fig seed oil at full load and different speeds. The ... -
Experimental Investigation of the Effect of a Semi-Circular Spiral Protrusion on the Turbulent Flow Past a Cylinder
Koca, Ferhat; Öztürk,Adnan (2022)The effect of semi-circular spirals on a circular cylinder surface to flow structure was experimentally investigated by the particle imaging velocity measurement (PIV) method. Based on the PIV channel, the main body cylinder ... -
Farklı Desenli Bakır Plakaların Birleşik Jet Akışı ile Soğutulmasında Grafen Oksit (GO)-Su Nanoakışkanının Etkisi
Alnak, Dogan Engin (2023)Bu çalışmada, kanallarda bulunan sabit 1000 W/m2 ısı akılı küp ve oyuklu desenlerin su ve %0,02 hacimsel nanoparçacık konsantrasyonlu GO (Grafen Oksit)-Su nanoakışkanı kullanılarak birleşik jet akışı ile soğutulması sayısal ... -
Farklı Yükseklikli ve Kanatçıklı Birleşik Jet Akışlı Kanallarda Isı Transferi İyileştirilmesinin İncelenmesi
Alnak, Dogan Engin (2022)Yüksek hıza sahip cihazlar elde edebilmek amacıyla yarı iletken levhalar üzerine çok sayıda yerleştirilen mikroçipler beraberinde çözülmesi gerekli önemli bir problem olan ısınma sorununu gündeme getirmektedir. Bununla ... -
Farklı Yüzey Geometrisine Sahip Dönen Ve Dönmeyen Silindirlerin Akıs Ve Isı Geçisine Etkilerinin Deneysel Ve Sayısal Olarak Incelenmesi
Alnak, Dogan Engin; Teknoloji Fakültesi; 0000-0003-0126-1483 (01.05.2021)Projede farklı yüzey geometrisine sahip dönen ve dönmeyen silindirlerin akış ve ısı geçişine etkilerinin deneysel ve sayısal olarak incelenmesi hdeflenmektedir. Projenin deneysel kısmında üst akış bölgesinde bulunan farklı ... -
Fatigue Life and Stress Analysis of the Crankshaft of a Single Cylinder Diesel Engine under Variable Forces and Speeds
Temizer, İlker; Bulut, Mehmet; Cihan, Ömer (De Gruyter, 2021)In this paper, a single cylinder crankshaft manufactured with C45 steel was used to investigate variation in stress, deformation, and fatigue life and safety factor at critical locations of the crankshaft. For this ... -
Friction welding of high Cr white cast iron to AISI 1030 steel with Ni interlayer
Teker, Tanju; Karakurt, Eyyüp Murat (https://www.degruyter.com, 2021)In this study, the effect of friction time on microstructure and weldability of AISI 1030 steel with nickel interlayer and high chromium white cast iron welded by the friction welding method were investigated experimentally. ... -
Grafen Oksit (GO)-Su Nanoakışkanlı ve Kanatçıklı Birleşik Jet Akışlı Kanallarda Isı Transferinin Araştırılması
Alnak, Dogan Engin (2023)Bu çalışmada, birleşik jet akışıyla kanatçıksız ve farklı kanatçık mesafeli (N = D ve 2D) ve 60o açılı kanal-larda su ve %0.02 hacimsel konsantrasyonlu GO (Grafen Oksit)-Su nanoakışkanı kullanılmasıyla yamuk ve taç desenli ... -
Heat affected zone and weld metal analysis of HARDOX 450 and ferritic stainless steel double sided TIG-joints
Teker, Tanju; Gençdoğan, Denizer (https://www.degruyter.com, 2021)In this study, AISI 430 and HARDOX 450 grade steel are joined using a double-sided tungsten inert gas welding process. The microstructural properties of weld metal and HAZ were evaluated by optical microscopy, energy ... -
HEAT TRANSFER IMPROVEMENT IN MICROCHIP ELECTRONIC CIRCUIT ELEMENTS BY COMBINED JET EFFECT
Alnak, Dogan Engin (18.02.2022)Elektronik devre üzerinde ne kadar çok mikroçip bulunabilirse o cihaz teknolojik olarak o denli gelişmiş olur. Fakat, küçük hacimlerde bulunan mikroçiplerin gelişimine engel olan aşırı ısınmaları sonucu sıcaklıklarının ... -
Improvement of metallurgical properties of A356 aluminium alloy by AlCrFeSrTiBSi master alloy
Teker, Tanju; Yılmaz, Serdar Osman; Karakoca, Alper (WALTER DE GRUYTER GMBHGENTHINER STRASSE 13, D-10785 BERLIN, GERMANY, 3 February)A new AlCrFeSrTiBSi master alloy was manufactured by in situ synthesis in Al melt, and compared with AlBSr master alloy. Microstructures of A356 alloy modified with AlCrFeSrTiBSi master alloy were investigated, and the ... -
Investigation of Graphene Oxide-Distilled Water Nanofluids with Consideration of Heat Transfer and Flow Structure for Backward-Facing Step Flow
Dogan Engin ALNAK (15.04.2021)The backward-facing step flow is seen in applications in our daily life: the high attack angle at airfoil, the separation flow behind a vehicle, the flow in a gas turbine, and the flow around a boat or building. In view ... -
Investigation of heat transfer and flow properties in separated flow and reattachment regions for liquid sodium flow at fast reactors
Alnak, Dogan Engin; Karabulut, Koray (15.04.2021)In many engineering applications, such as heating and cooling systems, flow around an automobile or building, separation and reattachment regions are formed. These regions are very important for controlling the amount of ... -
INVESTIGATION OF HEAT TRANSFER IN COMBINED JET FLOW CHANNELS WITH DIFFERENT FIN ANGLES AND USING DIAMOND-WATER NANOFLUID
Alnak, Dogan Engin (01.06.2022)With traditional heat transfer methods, more energy is consumed and sufficient and desired heat transfer performance cannot be achieved. However, with the development of technology, the heating problem arises in high-performance ... -
Investigation of Surface Properties and FeB-Fe2B Layer Formation in Pack Boronizing of Cementation Steel
Teker, Tanju; Sarı, Murat (World Scientific Publishing Co. Pte. Ltd., 01 Septemb)In this study, cementation steel was boronized at 1050∘C for 6h, 8h, and 10h. Microstructural change on the surface of the samples after boronization was detected by optical microscope (OM), scanning electron microscope ... -
INVESTIGATION OF THE COMBINED JET FLOW EFFECT ON FLOW AND HEAT TRANSFER APPLICATION IN THE CHANNEL
Alnak, Dogan Engin (19.03.2022)While advancement of technology makes the lives of consumers easier, it causes manufacturers to encounter some problems in order to develop longer-lasting and energy-efficient devices. The biggest problem in this matter ... -
INVESTIGATION OF THE EFFECT OF FiN ANGLE AT COOLING OF HOT PLATES OF IMPINGING JET-CROSS FLOW WITH GRAPHENE OXIDE-WATER NANOFLUID
Alnak, Dogan Engin (18.06.2022)The service life of modern, high-power, compact electronic components is affected by their heat dissipation capacity. It has become very important to cool the microchips, which are used in every stage of daily life and ... -
Investigation of the Effect of Length Change of Fin Placed in Cross Flow-Impinging Jet Flow Channels with Al2O3 -Water Nanofluid on Flow Structure and Heat Transfer
Alnak, Dogan Engin (07.01.2023)With the impact of global climate change being felt in recent years, efforts to transition to a green economy have started to gain momentum all over the world, especially in European countries. In this context, it is aimed ... -
INVESTIGATION OF THE VARIATION OF COOLING PERFORMANCE WITH THE CHANNEL HEIGHT IN A CHANNEL HAVING IMPINGING JET-CROSS FLOW
Alnak, Dogan Engin (24.11.2021)The cooling process by applying cross flow alone, which is one of the frequently used methods, may be insufficient for electronic circuit elements that reach high temperatures. Cooling with impinging jet, which is another ... -
Joint performance of medium carbon steelaustenitic stainless steel double-sided TIG welds
Teker, Tanju; Aydın, Sinan; Yılmaz, Serdar Osman (WALTER DE GRUYTER GMBHGENTHINER STRASSE 13, D-10785 BERLIN, GERMANY, 3 February)AISI 1040 and AISI 304 steel plates of 10 mm were joined without pretreatment by double-sided TIG arc welding (DSAW). Joints were manufactured by using welding currents of 420, 440, and 460 A. The microstructural variations ...