Güncel Gönderiler: Makine Mühendisliği Bölümü
Toplam kayıt 165, listelenen: 101-120
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Artificial neural network analysis of heat pumps using refrigerant mixtures
(Pergamon-Elsevier Science Ltd, 2004)In this study, we have investigated the performance of a vapor compression heat pump with different ratios of R12/R22 refrigerant mixtures using artificial neural networks (ANN). Experimental studies were completed to ... -
Investigation of the effect of rake angle on main cutting force
(Elsevier Sci Ltd, 2004)This paper presents a study of comparison of empirical and experimental results for main cutting force during machining rotational parts by unworn cutting tools. A dynamometer was designed and produced for measuring the ... -
Performance analysis of ejector absorption heat pump using ozone safe fluid couple through artificial neural networks
(Pergamon-Elsevier Science Ltd, 2004)Thermodynamic analysis of absorption thermal systems is too complex because the analytic functions calculating the thermodynamic properties of fluid couples involve the solution of complex differential equations and ... -
An experimental and numerical investigation of strength characteristics of carbon-epoxy pinned-joint plates
(Elsevier Sci Ltd, 2004)An experimental and numerical study has been carried out to investigate the strength of a pinned-joint carbon epoxy composite plate with [0degrees/45degrees/-45degrees/90degrees]s and [90degrees/45degrees/-45degrees/0degrees]s ... -
Investigation of thermodynamic properties of refrigerant/absorbent couples using artificial neural networks
(Elsevier Science Sa, 2004)This paper presents a new approach to determine the properties of liquid and two phase boiling and condensing of two alternative refrigerant/absorbent couples (methanol-LiBr and methanol-LiCl), which do not cause ozone ... -
Performance comparison of CFCs with their substitutes using artificial neural network
(John Wiley & Sons Ltd, 2004)In order to decrease global pollution due to chlorofluorocarbons (CFCs), the usage of HFC- and HC-based refrigerants and their mixtures are considered instead of CFCs (R12, R22, and R502). This was confirmed by an international ... -
Estimation of solar potential in Turkey by artificial neural networks using meteorological and geographical data
(Pergamon-Elsevier Science Ltd, 2004)Turkey is located at the Mediterranean at 36degrees and 42degrees N latitudes and has a typical Mediterranean climate. The solar energy potential is very high in Turkey. The yearly average solar radiation is 3.6 kW h/m(2) ... -
Energy and exergy analyses in a rotary burner with pre-calcinations in cement production
(Pergamon-Elsevier Science Ltd, 2004)Cement production facilities are often located in rural areas and close to quarries, where the raw materials required for cement production are present, i.e. limestone and shale. Although energy analysis, based on the first ... -
Performance prediction of a vapour-compression heat-pump
(Elsevier Sci Ltd, 2004)The performance of the heat pump was predicted using a fuzzy-logic controller under various working-conditions and mixing ratios of R12/R22 refrigerant mixtures, instead of requiring an expensive and time consuming ... -
A study for estimating solar resources in Turkey using artificial neural networks
(Taylor & Francis Inc, 2004)Turkey has sufficient solar radiation and radiation period for solar thermal applications since it lies in a sunny belt between 36degrees and 42degreesN latitudes. The yearly average solar radiation is 3.6 kWh/m(2) day, ... -
A new approach to thermodynamic analysis of ejector-absorption cycle: artificial neural networks
(Pergamon-Elsevier Science Ltd, 2003)Thermodynamic analysis of absorption thermal systems is too complex because of analytic functions calculating the thermodynamic properties of fluid couples involving the solution of complex differential equations. To ... -
The effect of stacking sequence of carbon epoxy composite laminates on pinned-joint strength
(Elsevier Sci Ltd, 2003)In this paper, an experimental study regarding the determination of the safe as well as the maximum bearing strengths of a pinned-joint carbon epoxy composite laminate with [0degrees/45degrees/-45degrees/90degrees]s and ... -
An investigation of the effects of shear on the deflection of an orthotropic cantilever beam by them use of anisotropic elasticity theory
(Elsevier Sci Ltd, 2001)Two deflection functions due to both flexure and shear of an orthotropic cantilever beam subjected to both point and distributed loads have been obtained by the use of anisotropic elasticity theory. The deflections at the ... -
Finite element simulation of chip flow in metal machining
(Pergamon-Elsevier Science Ltd, 2001)Finite element studies of machining are becoming ever more sophisticated. A basic approach which removes the need, in an elastic-plastic analysis, to follow the development of chip formation from initial contact between ... -
Analytical and finite element comparisons of stress intensity factors of composite materials
(Elsevier Sci Ltd, 2000)In this paper, a comparative study regarding the determination of stress intensity factors (SIF) for non-standard thin composite plates is presented. Carbon-epoxy composite plates are considered for the study. Unnotched ... -
Failure analysis of two-dimensional carbon-epoxy composite plate pinned joint
(Taylor & Francis Inc, 1999)The aim of this study is to investigate failure strength and failure mode of a mechanically fastened carbon-epoxy composite plate of arbitrary orientation. The failure load and the failure mode are analyzed numerically and ... -
A numerical study of laminar heat convection in ducts of irregular cross-sections
(Pergamon-Elsevier Science Ltd, 1997)Forced convective heat transfer during hydrodynamically fully developed laminar fluid flow inside ducts of irregular cross section is analyzed utilizing numerical methods. The elliptic grid generation technique is used to ... -
Analysis of energy flow in thick plate structures
(Pergamon-Elsevier Science Ltd, 1997)At sufficiently high frequencies: where the structural wavelength is much smaller than the thickness of the structure, the rotational inertia and transverse shear effects become increasingly important. In this study the ... -
Numerical and experimental stress analysis of a polymeric composite hip joint prosthesis
(John Wiley & Sons Inc, 1996)A comparative stress analysis of a polymeric composite hip joint replacement was performed. A prototype short carbon-fiber reinforced PEEK (CF/PEEK) prosthesis was manufactured by injection molding. Finite element (FE) ...