Güncel Gönderiler: Makine Mühendisliği-Makale Koleksiyonu
Toplam kayıt 149, listelenen: 41-60
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A novel approach for estimation of photovoltaic exergy efficiency
(Pergamon-Elsevier Science Ltd, 2012)In this study, a novel approach is proposed to determine the maximum amount of exergy from the sun when applied to a conventional photovoltaic (PV) system in order to formulate its exergy efficiency. The variations of ... -
Web based, low cost and modular home automation system
(Univ Osijek, 2016)Home automation systems allow the user to easily control lighting, security, ventilation, temperature etc. in the house and monitor their operation. This project aims to reduce costs, wasted time and energy consumption of ... -
Tribological properties of self-lubricating bronze-graphite composite against Fe-based alloys
(Emerald Group Publishing Ltd, 2016)Purpose - The purpose of this study is to investigate the tribological properties of society of automotive engineers (SAE) 430B bronze-graphite composite, supplied in the form of machined and graphite embedded, used in ... -
Additive manufacturing of anatomical models from computed tomography scan data
(Tech Science Press, 2014)The purpose of the study presented here was to investigate the manufacturability of human anatomical models from Computed Tomography (CT) scan data via a 3D desktop printer which uses fused deposition modelling (FDM) ... -
Heat treatment effects to the fracture splitting parameters of C70S6 connecting rod
(Kaunas Univ Technol, 2014)Crackable connecting rods have been widely used in cars' engines recently. In this method no machining is needed to seperate the connecting rod into two pieces. The main microstructure of the crackable C70S6 steel is ... -
Calculation and temporal variability of ventilation coefficient depending on location and characteristics of houses in Balikesir city center
(Parlar Scientific Publications (P S P), 2016)In recent years, there has been much research on indoor air quality, owing to a growing interest in improvement of air quality in residential buildings. People spend most of their time indoors, where air quality is affected ... -
Investigating the impacts of some meteorological parameters on air pollution in Balikesir, Turkey
(Springer, 2008)Air pollution is one of the most important environmental problems in Balikesir, situated in the western part of Turkey, during the winter periods. The unfavorable climate as well as the city's topography, and inappropriate ... -
Density and compressive strength properties of polyester composites reinforced with spiral geometry woven fiber
(Sage Publications Ltd, 2014)Composites can be produced by combining different materials according to different targets. In this study, woven-type E-glass fiber with a 500g/m(2) unit-area weight has been used as a reinforcement material. Resin, hardener ... -
A new approach to determine the outdoor temperature distributions for building energy calculations
(Pergamon-Elsevier Science Ltd, 2014)This study formulated annual, monthly and hourly ambient temperature distributions for simplifying the calculation of cooling and heating degree-hours. In this regard, Turkey was selected as an application country, of which ... -
Optimum insulation thickness calculated by measuring of roof, floor and exterior walls in buildings used for different purposes
(Turkish Soc Thermal Sciences Technology, 2016)Heat-losses in multi-storey buildings occur through the roof approximately 7 %, 40 % of it through exterior walls, and 6 % from the floor. For this purpose in this study measurements and calculations were made to reduce ... -
Energy and exergy analyses of a raw mill in a cement production
(Pergamon-Elsevier Science Ltd, 2006)Cement production has been one of the most energy intensive industries in the world. In order to produce raw materials preparation, clinker and rotary kilns are widely used in cement plants. The objective of this study is ... -
Effect of matrix structure on the impact properties of an alloyed ductile iron
(Elsevier Science Inc, 2006)An investigation was performed to examine the influence of the matrix structure on the impact properties of a 1.03% Cu, 1.25% Ni and 0.18% Mo pearlitic ductile iron. Specimens were first homogenized at 925 degrees C for 7 ... -
Strength prediction of bolted joints in CFRP composite laminates using cohesive zone elements
(Elsevier Sci Ltd, 2014)A strength prediction method is developed for bolted joints in CFRP composite laminates using cohesive zone elements (CZEs). Three-dimensional finite element models were developed with one element per laminate layer using ... -
Energetic and exergetic performance investigation of the Bigadic geothermal district heating system in Turkey
(Elsevier Science Sa, 2008)In this study a comprehensive performance analysis of the Bigadic Geothermal District Heating System (GDHS) in Balikesir, Turkey is performed through thermodynamic assessment in terms of energy and exergy efficiencies. The ... -
Distributed activation energy model parameters of some Turkish coals
(Taylor & Francis Inc, 2008)A multi-reaction model based on distributed activation energy has been applied to some Turkish coals. The kinetic parameters of distributed activation energy model were calculated via computer program developed for this ... -
Investigation of microstructure and mechanical properties of friction welded aisi 316 and ck 45 steels
(Walter De Gruyter Gmbh, 2014)This study has arisen from the necessity to manufacture an impeller and a shaft pair of a water pump from two different types of steels. The impeller has to have resistant to corrosion and the shaft has to have magnetic ... -
Energy and exergy analyses in a thermal process of a production line for a cement factory and applications
(Inderscience Enterprises Ltd, 2008)The objective of this study is to determine the actual energy losses by performing energy and exergy analyses and to evaluate energy and exergy efficiency in each process for the cement factory. In these analyses, for each ... -
An investigation of bending fatigue behavior for glass-fiber reinforced polyester composite materials
(Elsevier Sci Ltd, 2008)To investigate bending fatigue behaviors for glass-fiber reinforced polyester composite material, 800 g/m(2), 500 g/m(2),300 g/m(2), and 200 g/m(2) glass-fiber woven and 225 g/m2 450 g/m(2), and 600 g/m(2) randomly distributed ... -
Statistical analysis of bending fatigue life data using Weibull distribution in glass-fiber reinforced polyester composites
(Elsevier Sci Ltd, 2008)The bending fatigue behaviors were investigated in glass fiber-reinforced polyester composite plates, made from woven-roving with four different weights, 800, 500, 300, and 200 g/m(2), random distributed glass-mat with two ... -
An improved design of apparatus for multi-specimen bending fatigue and fatigue behaviour for laminated composites
(Elsevier Sci Ltd, 2008)A previously designed fatigue apparatus to test bending fatigue behaviours of glass-fiber reinforced plastic materials is improved in the scope of this research. The advantages of the improved test apparatus are as follows: ...
