Makine Mühendisliği Bölümü Koleksiyonu: Recent submissions
Now showing items 241-260 of 370
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A perspective of COVID 19 impact on global economy, energy and environment
(Taylo & Francis Ltd., 2021)COVID-19 or novel coronavirus is not only an international emergency for public health but also has significant consequences on energy, economy, and environment. Although much of the World's attention is understandably ... -
Performance assessment of solar chimney power plants with the impacts of divergent and convergent chimney geometry
(Oxford University Press, 2021)Influence of area ratio (AR) on main performance parameters of solar chimney power plants (SCPPs) is investigated through a justified 3D axisymmetric CFD model. Geometric characteristics of Manzanares pilot plant (MPP) are ... -
Effect of heat treatment on mechanical and wear properties of Zn-40Al-2Cu-2Si alloy
(Elsevier, 2021)In order to determine the effect of heat treatment on the mechanical and wear properties of Zn-40Al-2Cu-2Si alloy, different heat treatments including homogenization followed by air-cooling (H1), homogenization followed ... -
Experimental study on machinability of pre-hardened Toolox 44 and Nimax mould steels
(Gazi Üniversitesi Mühendislik Mimarlık Fakültesi, 2021)In this study, the machinability of Nimax and Toolox 44 materials, which are among the mould steels was investigated experimentally. Cutting experiments were carried out with PVD-AlCrN coated carbide end mill using three ... -
Effect of arc re-melting on microstructure, mechanical and tribological properties of commercial 390A alloy
(Elsevier, 2021)To investigate the effect of the arc re-melting on the microstructure, mechanical and tribological properties of the 390A alloy, its ingot produced by the conventional induction melting method was subjected to the arc ... -
Experimental study of single-phase fluid flow and heat transfer characteristics in rectangular microchannels
(2018)In this study, single-phase laminar flow of deionized water through microchannel heat sinks is investigated experimentally. Heat sinks including twenty-nine parallel rectangular channels have been used as the test samples. ... -
Elyaf takviyeli polimer kompozit malzemelerin farklı delme yöntemleri ile delinmesinde kesme performansının değerlendirilmesi: Literatür Taraması
(2018)Elyaf takviyeli polimer kompozit (ETPK) malzemeler, yüksek mukavemet ve sönümleme, hafiflik, düşük termal genleşme gibi mühendislik özelliklerinden dolayı uzay ve havacılık sanayisinde cıvatalı, perçinli ve pimli bağlantılarda ... -
Delik delme prosesi: bir araştırma
(2017)Delik delme işlemi, talaşlı imalat işlemleri arasında önemli bir yere sahiptir. Delme işlemi esnasında, aşırı yüzey pürüzlülüğü, çapak oluşumu, dairesellik, eksenel kaçıklık ve hızlı takım aşınması gibi istenmeyen sonuçlarla ... -
Zn-15Al-3Cu-1Si alaşımı ve SAE 660 bronzunun yağlı durumdaki aşınma karakteristikleri
(2018)Bu çalışmada Zn-15Al-3Cu-1Si alaşımının yağlı çalışma koşullarındaki sürtünme ve aşınma davranışlarıblok-disk tipi bir deney düzeneği kullanılarak incelendi. Sürtünme ve aşınma deneyleri farklı yağ debileri(0,25-3,0 cm3h-1), ... -
Stronsiyum ve stronsiyum-magnezyum katkılarının ötektiküstü Al-17Si alaşımının içyapı ve mekanik özelliklerine etkisi
(2019)Al-17Si, Al-17Si-0,1Sr ve Al-17Si-0,1Sr-0,6Mg alaşımları kokil kalıba döküm yöntemi ile üretilmiştir. Alaşımların yapısal ve mekanik özellikleri üretilen alaşım külçelerinden talaşlı imalat yöntemiyle hazırlanan numuneler ... -
Effect of air change rate on particle dispersion from inlet opening under varying particle source strengths
(Taylor and Francis Ltd., 2020)In this study, effect of air change rate (air change per hour–ACH) on indoor particle dispersion and deposition in a ventilated room is investigated. A reduced-scale model is designed to conduct experiments. Numerical ... -
Cryogenic cooling-based sustainable machining
(Elsevier, 2020)Machinability is the most important indicator to measure the performance of any machining operation. Cutting force, surface roughness, tool wear, dimensional accuracy, and cutting temperature, etc. are the most important ... -
Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit
(Erol Kurt, 2020)Heat loss/gain through the walls accounts for about 30% of the total building energy losses. Bricks are indispensable parts of buildings as a very common masonry wall unit; hence the present work aims at optimising thermal ... -
Analysis of solar PV glare in airport environment: Potential solutions
(Elsevier B.V., 2020)Solar PV plants are being installed in many airports around the globe. Reflection from the solar PV arrays is a big concern for airport stakeholders. This paper aims to assess the glare occurrence and its impact from the ... -
A numerical analysis of convection heat transfer and friction factor for oscillating corrugated channel flows
(Taylor and Francis Ltd., 2019)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 ... -
Thermal properties of aerogels: From theory to practice
(Nova Science Publishers, Inc., 2019)Due to growing economies and populations, the world temperature has risen gradually. The increase in temperature reached about 0.8 within the last decades. Global warming is considered as one of the vital issues for not ... -
Impacts of edge seal material on thermal insulation performance of athermally resistive photovoltaic glazing: CFD research withexperimental validation
(Erol Kurt, 2019)A novel design of photovoltaic (PV) glazing technology called TRPVG is introduced within thescope of this research, and thermal insulation performance of TRPVG for different edge sealmaterials is evaluated through a ... -
Concluding remarks
(Elsevier Inc., 2018)This chapter presents the main findings of the Energy Production Volume. In this regard, the following chapters are accordingly evaluated. (1) hydrogen production, (2) ammonia production, (3) mitochondrial energy production, ... -
Thermodynamic comparison of a steam, hot water and hot air production system consuming Soma and Afsin lignites under stoichiometric conditions
(Inderscience Publishers, 2017)This study presents thermodynamic comparison of a steam, hot water and hot air production system consuming Soma and Afsin lignites under stoichiometric combustion conditions. For this purpose, using the results from ...
