Başlık için Makale Koleksiyonu listeleme
Toplam kayıt 108, listelenen: 32-51
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Elektro-erozyon ile işlemede işleme haznesine uygulanan titreşimlerin işleme performansına etkilerinin incelenmesi
(2011)Bu çalısmada, elektro-erozyon ile islemede (EEİ), isleme kosullarında isleme haznesine uygulanan titresimlerin performans çıktıları (isparçası isleme hızı, elektrot asınma hızı, bağıl asınma ve isparçası yüzey pürüzlülüğü) ... -
Energy absorption of 2D auxetic structures fabricated by fused deposition modeling
(SPRINGER HEIDELBERG, 2023)Auxetic structures have become a very popular subject in recent years due to their interesting physical and mechanical properties such as light weight, energy absorption capability, and impact resistance. In this context, ... -
Energy absorption of circular aluminium tubes with functionally graded thickness under axial impact loading
(Taylor and Francis Ltd., 2015)The main objective of this study is to investigate the effects of thickness-gradient patterns on energy absorption characteristics of aluminium-based circular tubes under axial impact loading. Functionally graded thickness ... -
Energy absorption of thin-walled tubes enhanced by lattice structures
(Elsevier, 2019)Thin-walled structures filled or covered by various materials have been proposed for energy absorption applications in recent years. At this point, additive manufacturing technologies provide an unprecedented opportunity ... -
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 ... -
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 ... -
Evaluation of the effects of surface treatments on different dental ceramic structures
(2013)The surface treatments applied to porcelain materials can be different overglaze methods, chemical interactions and polishing techniques. The aims of these methods are the most durable restoration and the smoothest surface. ... -
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*) ... -
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 ... -
Exergy destruction analysis of a gas turbine power plant
(Hitit Üniversitesi Fen Bilimleri Enstitüsü, 2018)According to the data released by “Republic of Turkey-the Ministry of Energy and Nat ural Resources”, by the end of July 2017, 34% of the electricity of Turkey was produced from natural gas. As it is compared to ... -
Exergy transfer in a porous rectangular channel
(Elsevier Ltd, 2009)Present paper is performed to investigate the heat and exergy transfer characteristics of forced convection flow through a horizontal rectangular channel where open-cell metal foams of different pore densities such as 10, ... -
Experimental and numerical analysis of low velocity impact on a preloaded composite plate
(Elsevier Ltd, 2015)An experimental and numerical study on the influence of biaxial preloading on the low velocity impact performance of E-glass/epoxy-laminated composite plates was conducted. For this aim, an experimental device was developed ... -
Experimental and numerical analysis of the splay impact on the performance of splayed cross-cut fin heat sink
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2021)In this study, splayed effects on the thermal performance of standard cross-cut heat sink (S-CCHS), fixed-array splayed (FAS-CCHS), and full splayed (FS-CCHS) under natural and forced conditions are studied experimentally ... -
Experimental and numerical investigation of geometry effects on multiple impinging air jets
(Elsevier Ltd, 2014)The effect of jet geometry on the flow and the heat transfer characteristics was investigated experimentally and numerically for elliptic and rectangular impinging jet arrays. Detailed heat transfer measurements over a ... -
Experimental and numerical study of alumina reinforced aluminum matrix composites: Processing, microstructural aspects and properties
(Elsevier Ltd, 2016)Co-continuous alumina-aluminum composite materials with excellent physical and mechanical properties offer great potentials for lightweight, wear resistant, and high-temperature applications. They combine metallic properties ... -
Experimental investigation of a cross-flow heat exchanger with wing-type vortex generators
(2008)In this study, heat and fluid flow in a plate-fin heat exchanger with wing-type convergent-divergent longitudinal vortex generators (CDLVGs) were studied experimentally. A cross-flow plate-type heat exchanger was designed ... -
Experimental investigation of cooling performance a heat pump for near azeotropic refrigerant R404A
(Hitit University, 2017)In this study, in order to investigate the effect of outdoor air temperatures on the performance of an air source heat pump, operated in cooling mode, using R404A refrigerant, the heat pump was tested at the outdoor air ... -
An experimental investigation of heat transfer enhancement in a rectangular duct with plate fins
(2009)In this study, using an ideal heat exchanger model, a detailed evaluation of performance parameters in the turbulent regime for the enhancement of heat transfer by using winglet-type vortex generators is carried out. The ... -
Experimental investigation of heat transfer from different pin fin in a rectangular channel
(Taylor and Francis Ltd., 2018)In this study, the effect of both hexagonal pin fins (HPFs) and cylindrical pin fins (CPFs) into the rectangular channel on heat transfer augmentation, Nusselt number and friction factor were experimentally investigated. ... -
Experimental investigation of heat transfer in a channel with new winglet-type vortex generators
(Elsevier Ltd, 2014)Both new punched triangular vortex generators (PTVGs) and punched rectangular vortex generators (PRVGs) have been developed. Both the triangular and rectangular vortex generators were directly punched from the longitudinal ...