Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 109, listelenen: 81-100
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Energy and exergy analyses of hydrogen production by coal gasification
(Elsevier Ltd, 2017)In this study, we examine an integrated coal based gasification system developed for hydrogen production and power generation. The proposed plant consists of air separation unit, gasification unit, gas cooling and cleaning ... -
Worldwide trends on encapsulation of phase change materials: A bibliometric analysis (1990–2015)
(Elsevier Ltd, 2017)Context Science is not static! In light of this basic approach, it can be expressed clearly that bibliometric methods or analysis has become an indispensable guide to be draw scientific and technological roadmaps in their ... -
Design and implementation of real time monitoring and control system for distributed robotic systems supported with IOS/android application
(Strojarski Facultet, 2018)In this study, a real time monitoring and control of the working parameters of distributed robotic systems used in manufacturing processes is presented. Additionally, a fault diagnosis and protection system is developed ... -
Saturation operation on the direct current motor that is used for manipulator control
(2013)In this study, the saturation operation on the motor armature current has been carried out with a manipulator control algorithm. Manipulator system is controlled by state feedback plus integral error control strategy. ... -
Second law analysis of different refrigerants in a two stage vapor compression cycle
(Turkish Society for Thermal Science and Technology, 2015)In this study, the second law analysis has been made by means of the program developed using the software program EES (EES-V9.172-3D) in a two stage vapor-compression refrigeration cycle for the refrigerants such as R600 ... -
Comparison of superheating effect of water as a refrigerant with the other refrigerants
(2011)The performance comparison of water as a refrigerant (R718) with some refrigerants including R717, R290, R134a, and R152a is presented for a vapor compression refrigeration cycle. A computer program simulating the vapor ... -
Numerical investigation of heat transfer using impinging jets on triangular and square ribbed roughened walls
(Turkish Society for Thermal Science and Technology, 2017)This paper presents a heat removal study on triangular and square ribbed surfaces under an array of impinging air jets. The investigation was carried out using nozzles with a 7x3 rectangular array of circular jets. The ... -
Çarpan akışkan jetleri kullanarak kanatçıklı yüzeyler üzerindeki akış alanının sayısal olarak incelenmesi
(Ahmet Yesevi Üniversitesi, 2017)Bu çalışmada, 7x3 olarak dikdörtgen dizilime sahip dairesel jetler kullanılarak üçgen ve kare kanatçık bulunan yüzeyler üzerine çarptırılması sonucu oluşan akış yapısı sayısal olarak incelenmiştir. Re sayısının, jet-plaka ... -
Crashworthiness optimization of circular tubes with functionally-graded thickness
(Emerald Group Publishing Ltd., 2016)Purpose: The purpose of this paper is to develop a new multi-objective optimization procedure for crashworthiness optimization of thin-walled structures especially circular tubes with functionally graded thickness. ... -
Static behavior of lattice structures produced via direct metal laser sintering technology
(Elsevier Ltd, 2017)The aim of this scientific work was the analysis of the micro lattice structures under uniaxial quasi-static compression loading with regard to the effect of unit cell size and strut diameter. A wide range of cubic lattice ... -
The effect of finely-divided fillers on the adhesion strengths of epoxy-based adhesives
(Elsevier Ltd, 2015)It was aimed to investigate the effect of five different fillers on the adhesion strength of the metal parts used in different industries by using T-peel and lap-shear tests with respect to ASTM D 1876 and ASTM D 1002 ... -
An elastic-plastic and residual stress analysis steel reinforced thermoplastic composite cantilever beam
(2010)In the present study an analytical elastic-plastic stress analysis is carried out for a low-density homogeneous polyethylene thermoplastic cantilever beam reinforced by steel fibers. The beam is loaded by a constant single ... -
High temperature wear behavior of the surface-modified externally cooled rolls
(Elsevier B.V., 2018)Externally cooled rolls of a steel plant were coated using three different surface modification techniques, namely titanizing, boronizing and borotitanizing. The grown coatings were examined using optical microscopy, ... -
Energy and irreversibility analysis of a cascade refrigeration system for various refrigerant couples
(2010)This study deals with energy and irreversibility analysis of a cascade refrigeration system employing various refrigerant couples, namely R152a–R23, R290–R23, R507–R23, R234a–R23, R717–R23 and R404a–R23, using a computer ... -
Transient turbulent flow and heat transfer phenomena in plate-fin type cross-flow heat exchanger
(2011)In this article, a transient performance of a plate-fin cross-flow heat exchanger with convergent-divergent longitudinal vortex generators is investigated. The effect of flow geometry is taken into account to analyze the ... -
Design analysis of impinging jet array heat transfer from a surface with V-shaped and convergent-divergent ribs by the taguchi method
(Taylor and Francis Ltd., 2016)In this work, the effects of the impingement plate geometry, Reynolds number, jet-plate distance-to-jet diameter ratio, and the jet diameter-to-rib height ratio on the impingement jets were investigated using the Taguchi ... -
Role of adhesion in sandpaper failure progression
(Elsevier Ltd, 2016)In this study, different grit sizes of sandpapers were used under controlled rubbing experiments using a rheometer to investigate the role of adhesion in failure progression by particulate separation. Frictional shear ... -
Exergy analysis of R1234yf and R1234ze as R134a replacements in a two evaporator vapour compression refrigeration system
(Elsevier Ltd, 2015)Exergy analysis is a useful way for determining the real thermodynamic losses and optimising environmental and economic performance in the systems such as vapour compression refrigeration systems. The present study deals ... -
Theoretical and experimental investigation of wear in internal gears
(2014)Internal gears are commonly used in automotive and aeronautic industries as external sun gears of planetary mechanisms. Internal gears have some advantages such as low sliding velocities, low contact stresses, high contact ... -
Exergy analysis of coil-spring turbulators inserted in the horizontal concentric tubes
(2010)In this study, to obtain definitive information about the effects of spring-type turbulators located in the inner pipe of a concentric heat exchanger, the rates of exergy transfer Nusselt number (Nue) and exergy loss (E*) ...
