• Development of sinter linings for high-speed trains 

  Bebekoglu, Sunay; Topuz, Ahmet; Cakir, Esin; Adsoy, Abdulhamit; Yildiran, Turgay (Walter de Gruyter GmbH, 2024)

  In this study, brake linings with Cu (copper)-based and Cu-10Sn (bronze)-based matrix structures have been developed and produced by the powder metallurgy method using sinter metal technology for use in high-speed trains. ...

• Effect of Welding Process Parameters on the Strength of Dissimilar Joints of S355 and Strenx 700 Steels Used in the Manufacture of Agricultural Machinery 

  Szusta, Jaroslaw; Derpenski, Lukasz; Karakas, Oezler; Tuzun, Nail; Dobrzanski, Slawomir (Multidisciplinary Digital Publishing Institute (MDPI), 2023)

  The paper evaluates the possibility of using dissimilar materials joined by welding technology in the construction of agricultural machinery. The desire to design larger and more efficient structures requires designers to ...

• Key implications on food storage in cold chain by energy management perspectives 

  Karacan, M. Akif; Yilmaz, I. Cengiz; Yilmaz, Deniz (Frontiers Media SA, 2023)

  Over the past decades, increase in food shortages and food costs with the drought caused by population growth and climate change, it becomes more important to prevent food losses with the widespread use of cold storage. ...

• Dalgalı Yüzeyli Isı Değiştirici Kanallarında Hız ve Sıcaklık Alanlarının “Rans” Tabanlı Türbülans Modelleri ile Sayısal İncelenmesi ve Deneysel Doğrulaması 

  Aslan, Erman; Taymaz, Imdat; İslamoğlu, Yaşar; Parmaksızoğlu, Cem; Özçelik, Güven (TMMOB MAKİNA MÜHENDİSLERİ ODASI, 2018)

  Levhalı ısı değiştiricilerinde yaygın olarak kullanılan periyodik dalgalı yüzeyli kanal için taşınımla ısı geçişi ve sürtünme faktörü sayısal incelenmiştir. Sayısal çalışmada Sonlu Hacimler Yöntemi (Finite Volume Method ...

• Örnek Bir Malzemede Lineer Isı İletiminin Deneysel ve Sayısal Olarak İncelenmesi 

  Özçelik, Güven; Yılmaz, Deniz; İnce, Timuçin; Can, Ahmet (TMMOB MAKİNA MÜHENDİSLERİ ODASI, 2019)

  Literatür çalışmaları incelendiğinde; metalik malzemelerin, yapı malzemelerinin ve karma malzemelerin ısı iletim katsayılarının belirlenmesini, birbirine göre üstünlüklerinin ve zafiyetlerinin tespitini sağlayan bir ...

• R744/R404a Kaskat Soğutma Sistemi Performansının Deneysel İncelenmesi 

  Yılmaz, Deniz (TMMOB MAKİNA MÜHENDİSLERİ ODASI, 2019)

  Soğutma sistemlerinde kullanılan kloro-floro hidrokarbonların çevreye ve ozona zararlı olmalarından dolayı daha çevreci ve doğal soğutucu akışkanların bu bileşiklerle değiştirilmesi zorunlu hale gelmiştir. Doğal soğutucu ...

• Farklı Standart Koşullar İçin İki Kademeli Bir Soğutma Sisteminin Deneysel İncelenmesi 

  Yılmaz, Deniz; Mançuhan, Ebru (TMMOB MAKİNA MÜHENDİSLERİ ODASI, 2020)

  Endüstriyel soğutma sistemlerinin enerji verimliliğini ve ekonomisini iyileştirmek için farklı tasarım seçenekleri günümüzde yoğun olarak çalışılmaktadır. Daha iyi çevrim performansı elde etmek için çevrim modifikasyonlarına ...

• EXPERIMENTAL AND NUMERICAL ANALYSIS OF FLOW OVER A PICKUP TRUCK 

  Ince, Ibrahim Timucin; Mercan, Hatice; Onur, Nevzat (Begell House Inc., 2021)

  The drag forces and the overall drag coefficient of a typical pickup truck are investigated experimentally and the 3D numerical analysis is performed. A detailed 1/4-scale model is constructed and experiments are performed ...

• Computational investigation of the velocity and temperature fields in corrugated heat exchanger channels using RANS based turbulence models with experimental validation 

  Aslan, Erman; Taymaz, Imdat; Islamoglu, Yasar; Engin, Mardiros; Colpan, Ilkay; Karabas, Gokhan; Ozcelik, Guven (INDERSCIENCE ENTERPRISES LTD, 2018)

  The characteristics of convective heat transfer and friction factor for periodic corrugated channels are investigated numerically. In the numerical study, the finite volume method (FVM) is used. Three different Reynolds ...

• Characterisation and comparison of disc brake pads of heavy vehicles by experimental methods 

  Topuz, Polat; Comert, Zekeriya Yasar; Topuz, Ahmet (INDERSCIENCE ENTERPRISES LTD, 2019)

  In this study, characteristics of disc brake pads of heavy vehicles produced by three different manufacturers were compared experimentally. The former pad is the original (OEM), the latter pad is the subsidiary industrial ...

• THE PERFORMANCE EVALUATION OF R744 TRANSCRITICAL EJECTOR AND R290/R744 CASCADE REFRIGERATION SYSTEMS FOR TURKEY 

  Yilmaz, Deniz; Yilmaz, Baris; Mancuhan, Ebru (VINCA INST NUCLEAR SCI, 2020)

  In this study, performance of two different environmentally friendly systems with natural refrigerant solutions, R744 transcritical booster system with ejector and a R290/R744 cascade system are examined theoretically by ...

• DESIGN PRINCIPLES OF THE HOSPITAL CLEAN ROOMS 

  Can, Ahmet; Divarci, Hasan Ozguc; Buyruk, Ertan (UNIV ZAGREB FAC MECHANICAL ENGINEERING & NAVAL ARCHITECTURE, 2021)

  Clean rooms can be defined as areas that are specifically controlled for particulate and microbial contamination and where they are constructed and used to reduce the number of infectious disease agents settling and ...

• Optimal capacity for sustainable refrigerated storage buildings 

  Yilmaz, Ismail Cengiz; Yilmaz, Deniz (Elsevier Ltd, 2020)

  Widespread construction of cold storage buildings is important to ensure sustainability of the agricultural industry and reduce food loss. However, the number of cold storage buildings in most developing countries is ...

• Friction and wear properties of heavy load truck composite brake linings 

  Bayram, Emre; Topuz, Ahmet (Walter de Gruyter GmbH, 2021)

  Materials for friction used in brakes should fulfill many requirements, such as stable friction performance in all conditions, lower change in the friction coefficient, high wear resistance and low wear rate. In this study, ...

• Thermal analysis and performance testing of heavy load truck composite brake linings 

  Bayram, Emre; Topuz, Ahmet (Walter de Gruyter GmbH, 2022)

  One of the most important variables that determine the braking performance of heavy-duty trucks is the high temperature increases in the brake components. In this study, the effects of high temperatures in brake lining ...

• Energy and Cost Evaluation of Different HVAC Systems in an Office Building 

  Yasin, Kurtuluş; Yılmaz, Deniz (Univ Osijek, Tech Fac., 2022)

  Researchers state that people spend about 90 percent of their time indoors, and accordingly, the place of HVAC systems in our lives is increasing day by day. This brings about an increase in energy consumption. Considering ...

• Ultra Düşük Sıcaklıkta (-78 °C) Kaskad Soğutma Sisteminin Farklı Tasarım ve Operasyon Parametreleri İçin Teorik Analizi 

  Yıldırım, Berçem Kıran; Yılmaz, Deniz; Mançuhan, Ebru (Tesisat Mühendisliği, 2021)

  Ultra düşük sıcaklıkta çalışan soğutma sistemlerinin kullanım alanları oldukça yaygındır. Özellikle biyolojik ürünlerin uzun süre depolanabilmesi için ultra düşük sıcaklıklarda çalışabilen soğutma sistemlerine ihtiyaç ...

• Toprak Kaynaklı Isı Pompasıyla Çalışan Yerden Isıtma/Serinletme Sisteminin VRF Sistemi İle Enerji Kıyaslaması 

  Tanrıöver, Berker; Yılmaz, Deniz (Tesisat Mühendisliği, 2021)

  Artan dünya nüfusu ve teknolojik gelişmelerle birlikte, insanların kapalı ortamlarda vakit geçirme sürelerinin artması, iklimlendirme sistemlerine olan ihtiyaçları da beraberinde getirmiştir. Bununla birlikte kaynakların ...

• A Numerical Analysis of Convection Heat Transfer and Friction Factor for Oscillating Corrugated Channel Flows 

  Aslan, Erman; Özsaban, Mert; Özçelik, Güven; Güven, Hasan Rıza (Taylor and Francis Ltd., 2021)

  The aim of this article is to understand numerically the flow and heat transfer characteristics under oscillating flow conditions for periodically corrugated wavy channel. For the same channel, under steady-state flow ...

• Experimental Investigation of the Microclimate Effects on Floating Solar Power Plant Energy Efficiency 

  Karataş, Yalçın; Yılmaz, Deniz (Springer, 2021)

  Solar PVs are mostly built on uncultivated land. However, the increase in land values due to the increasing world population, the lack of suitable areas for potential PV plants, especially in the land-scarce countries, and ...

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