Güncel Gönderiler: Makine Mühendisliği Bölümü Koleksiyonu
Toplam kayıt 286, listelenen: 261-280
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Flow boiling characteristics in a novel minichannel with a step on each corner
(Taylor & Francis Inc, 2020)In the present study, flow boiling in a single minichannel with a longitudinal step on its each corner is studied experimentally. Bubble/flow dynamics, and thus, underlying physical phenomenon is investigated through ... -
A perspective on fossil fuel based flue gas emission reduction technologies
(Wiley Periodicals, Inc, 2020)The aim of this paper is to specify the role of coal-fired power plants (CFPPs) in the formation of global emissions/harmful pollutants and to discuss the benefits of current and future technologies to minimize environmental ... -
Performance analysis of a novel solar desalination system - Part 1: the unit with sensible energy storage and booster reflector without thermal insulation and cooling system
(Elsevier, 2020)Solar desalination systems have a promising potential to meet the clean water demand at global scale in a cost-effective and eco-friendly manner. Therefore, in this research, a novel solar distillation unit with sensible ... -
Effects of titanium addition on structural, mechanical, tribological, and corrosion properties of Al-25Zn-3Cu and Al-25Zn-3Cu-3Si alloys
(Elsevier, 2020)To investigate the effect of grain refinement on the material properties of recently developed Al-25Zn-3Cu based alloys, Al-25Zn-3Cu, Al-25Zn-3Cu-0.01Ti, Al-25Zn-3Cu-3Si and Al-25Zn-3Cu-3Si-0.01Ti alloys were produced by ... -
On the tse of nanofluids in solar energy applications
(Springer, 2020)Renewable energy technologies are in the centre of interest to narrow the gap between fossil fuels and clean energy systems. the dominant role of solar energy systems among the alternatives is beyond question owing to being ... -
Numerical analysis of entropy generation in a square cavity filled with boron-water nanofluid
(Springer Heidelberg, 2020)The entropy generation and natural convection in a square cavity filled with boron-water nanofluid is numerically investigated under the influence of different nanoparticle volume fractions and buoyancy forces when heated ... -
Processing of T6 heat-treated Al-12Si-0.6Mg alloy
(Taylor & Francis Inc, 2020)In this study, ternary Al-12Si-0.6Mg material was manufactured by gravity die casting method in induction melting furnace. Microstructure images of alloy were taken on optical microscope after T6 heat treatment. Hardness, ... -
Microstructural, mechanical and tribological properties of ultrafine-grained Cu-Cr-Zr alloy processed by high pressure torsion
(Elsevier Science Sa, 2020)The effect of temperature on tribological properties of coarse grained (CG) and ultrafine-grained (UFG) Cu-Cr-Zr alloy processed via high pressure torsion (HPT) was investigated. Dominant wear mechanism depends on both ... -
Determination of delamination in drilling of carbon fiber reinforced carbon matrix composites/Al 6013-T651 stacks
(Elsevier Sci Ltd, 2020)Delamination at the hole entrance and exit during drilling of the FRPs composites adversely affects the hole surface quality and engineering properties of this material. in this study, delamination occurrence in hole ... -
Machinability properties of Al-7Si, Al-7Si-4Zn and Al-7Si-4Zn-3Cu alloys
(Springer Heidelberg, 2020)Al-7Si, Al-7Si-4Zn, Al-7Si-4Zn-3Cu alloys were produced by permanent mold casting method to investigate the effects of copper and zinc additions on the machinability properties of Al-7Si alloy. the structural and mechanical ... -
Effect of zinc content and cutting tool coating on the machinability of the Al-(5-35) Zn alloys
(Korean Inst Metals Materials, 2020)In this study, Al-5Zn, Al-15Zn, Al-25Zn and Al-35Zn alloys containing 5, 15, 25 and 35 wt% Zn, respectively were produced by permanent mold casting. Their microstructures and mechanical properties were investigated using ... -
The effect of solid boriding time on the structure, hardness and corrosion properties of AISI 5140 steel
(Maik Nauka/Interperiodica/Springer, 2020)In this study, AISI 5140 steel samples were borided in an electrical furnace at a temperature of 950 degrees C for 4, 6 and 8 h. Structural examinations, hardness measurement and corrosion tests were performed to determine ... -
Particle dispersion and deposition in displacement ventilation systems combined with floor heating
(Taylor & Francis Inc, 2020)The aim of this study is to investigate dispersion and deposition characteristics of different particle diameters (0.5-5-10 mu m) for a displacement ventilated and floor heated environment, experimentally and numerically. ... -
Effect of air exhaust location on surgical site particle distribution in an operating room
(Tsinghua Univ Press, 2020)This study investigates effect of exhaust outlet location on airflow and particle distribution in an operating room with laminar ventilation system (LAF) via computational fluid dynamics (CFD). Four different exhaust opening ... -
Numerical performance modelling of solar chimney power plants: Influence of chimney height for a pilot plant in Manzanares, Spain
(Elsevier, 2020)3D axisymmetric CFD model is developed for a solar chimney power plant (SCPP) in Manzanares, Spain, and potential impacts of chimney height (H) on main performance parameters are comprehensively analysed. Mesh-independent ... -
Evaluation of in-duct UV-C lamp array on air disinfection: A numerical analysis
(Taylor & Francis Inc, 2020)In-duct ultraviolet germicidal irradiation systems are effective systems that are used in disinfection of pathogenic particles transported by air that moving through the ventilation systems. Proper design of these systems ... -
Improving thermal performance of thermoelectric coolers (TECs) through a nanofluid driven water to air heat exchanger design: An experimental research
(Pergamon-Elsevier Science Ltd, 2020)In this study, impacts of nanofluid use in thermoelectric coolers (TECs) on cooling power and main performance parameters are investigated through a comprehensive experimental methodology. For this purpose, a water cooled ... -
Thermal performance evaluation of a solar air heater integrated with helical tubes carrying phase change material
(Elsevier, 2020)In this present work, the efforts have been made to improve the efficiency of solar air heater (SAH). For this, total two models have been developed. There is one reference model SAH-A and one modified model SAH-B which ... -
Conical coaxial impinging air jets: angle effect on the heat transfer performance
(Springer, 2020)Herein, an experimental attempt is conducted to research thermal and flow behaviors of an impinging jet exiting from a coaxial type nozzle with a conical outer and a circular inner outlets. the experiments include four ... -
Enhanced performance figures of solar cookers through latent heat storage and low-cost booster reflectors
(Oxford Univ Press, 2020)Solar box cookers draw attention of many researchers across the globe as a promising renewable energy application for cooking purposes. Compared to other types available in literature, solar box cookers are more in the ...