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454 articles for “Prediction”
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Optimization and Control of Evaporative Separation Processes
Abstract: Evaporative separation processes are widely used in various industries, including chemical manufacturing, petroleum refining, and food and beverage processing, to separate components based on their vapor pressures. These processes involve the use of equipment such as distillation columns, evaporators, and membrane-based systems, and are critical for ensuring product quality and process efficiency. However, the complexity of evaporative separation processes and the inherent variability in feedstock composition and quality make it …
Published in International Journal of Chemical Separation Technology · Vol. 8, Issue 2, 2022 · pp. 27–31 Read article
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Analysis of the Degradation of Total Petroleum Hydrocarbons (TPH) in a Polluted Stagnant Salt and Fresh Water Environment
Abstract: TPH dispersion in both water media was investigated using a transport model that included convective and diffusion factors. This model was used to track the TPH concentration in both vertical and horizontal dimensions. Therefore, it was expected that diffusion alone would regulate TPH transport or spreading in the x-direction, or horizontal direction, while diffusion and convection caused by gravity would control TPH transport in the vertical direction. As a result, …
Published in International Journal of Chemical Separation Technology · Vol. 9, Issue 2, 2023 · pp. 1–12 Read article
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Statistical and Artificial Neural Network for the Determination of Thermo-Physical Properties of Fomoditine Drug Using Mixed Hydrotropy
Abstract: The experimental determination of thermo-physical properties of fomoditine drug–mixed hydrotrope concentration mixture is very time consuming as well as tedious process. Any tool helpful in estimation of these properties without experimentation can be of immense utility. In present work, other tools of determination of properties of fomoditine drug–mixed hydrotrope concentration blends were tried. A traditional statistical technique of linear regression (principle of least squares) was used to estimate the specific …
Published in International Journal of Chemical Engineering and Processing · Vol. 1, Issue 2, 2015 · pp. 1–6 Read article
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An Analytical Approach to Calculate the One-Dimensional Drift Velocity in Bubble Columns
Abstract: The design and scale-up of a bubble column reactor require a complete understanding of its complex hydrodynamics, which is influenced by the physical properties of the phases, the operating variables, and the design parameters. Current design procedures for bubble columns involve several steps of pilot-plant experimentation, which is expensive and time-consuming. One of the critical unknown parameters involved in designing any gas-liquid system is the gas holdup. The gas holdup …
Published in International Journal of Chemical Engineering and Processing · Vol. 5, Issue 2, 2019 · pp. 1–9 Read article
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Vapor Liquid Equilibrium Study of Propylene Carbonate-water and its Comparison with Various Thermodynamics Models Using Dwsim Simulation Software and Group Contribution Method
Abstract: In present study, green solvents that are environment friendly in nature were considered because it will reduce the environment pollution by replacing the petroleum derived solvents. Solvent used in chemical industry were mostly derived from the petroleum crude oils. Solvent emission increases the environment pollution. With the use of green solvents, closed carbon cycle will reduce the environment pollution drastically. Bio-derived solvents are the recent replacement of petroleum solvents that …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 2, 2023 · pp. 1–8 Read article
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Thermodynamic Equilibrium Modeling of Sunflower Husk Gasifier to Produce Synthesis Gas
Abstract: Energy from biomass offers the great attraction in producing useful gaseous component resulting in low emissions and providing energy security. In the present study a gasifier model was developed using commercial Aspen Plus simulator. The model developed was based on the minimization of Gibb’s free energy and is validated with the experimental data of sunflower husk gasification using air as a gasifying agent. The results predicted are in good agreement …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 2, Issue 2, 2016 · pp. 14–24 Read article
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Modification of Cubic Equations of State for Polar Compounds
Abstract: Abstract Volumetric properties of substances are crucial thermodynamic parameters in that they aid personnel to compute other thermodynamic parameters like internal energy, enthalpy, entropy, etc. Moreover, these are required in the design of process equipment and in the sizing of pipelines. In 1873 van der Waals proposed an equation to predict volumetric properties of idealized gases. Hitherto, a plethora of such equations known as cubic equations of state have been …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 1, Issue 2, 2015 · pp. 1–11 Read article
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Development of Mathematical Model for the Catalytic Polymerization of Propylene Process
Abstract: Mathematical model was developed to monitor, predict and simulate the catalytic polymerization of polypropylene process in a continuous stirred Tank Reactor, (CSTR). The developed model was based on consideration of functional parameters that influence the catalytic polymerization of propylene process production. These functional parameters are hydrodynamic factors, which induce process coverage into Aspen polymers to demonstrate the reliability of mass and heat transfer phenomena experienced during catalytic polymerization of propylene …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 2, 2018 · pp. 29–36 Read article
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Effect of Pressure on Insulation Failure and Pipe Leakage in Natural Gas Transmission Pipeline Using Simulation Software
Abstract: Effect on insulation failure and pipeline leakage in natural gas transmission line using simulation software known as EXTENDSIM9 SUIT was applied to monitor, predict and simulate the variation in pressure in a pipeline system. The computational fluid dynamics parameters for the flow of compressible gas in a pipeline includes density and pressure which changes along the transmission line due to frictional resistance, and may lead to fogging/ hydrate formation or …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 24–37 Read article
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Evaluation of Thermodynamic Properties of Helium using Cubic Equation of State based Approach for Energy Industry Applications
Abstract: Equations of state based methods are important techniques for thermodynamic property prediction ofcompounds and mixtures. The Peng-Robinson cubic equation of state is one of the most well-knownformulations for gases and gas mixtures used in the process and energy industries. In this study, it isused to predict pertinent thermodynamic state variables of helium gas for its use in very hightemperature as well as extremely low temperature thermodynamic cycle application for powergeneration …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 7, Issue 1, 2021 · pp. 1–9 Read article
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Implementation of Airport Construction Management
Abstract: In this article, Micro PAVER is used to analyze present condition of Neil Armstrong airport facilities. It also predicts the future condition and develop ways for pavement maintenance based on available funds and conditions. The airport infrastructure system is divided into several networks, branches, sections, sample units and the types, severity of distresses are identified for those units. Weather, traffic and maintenance are considered to develop prediction model for pavement …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 2, 2019 · pp. 64–75 Read article
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INVESTIGATION OF STEEL FIBER REINFORCED CONCRETE CORBELS BY EXPERIMENTAL AND ANALYTICAL METHOD
Abstract: In the present paper, an experimental results and predicted values by truss analogy method, ACI Building Code (ACI 381-83) provisions for corbels, and method given by Fattuhi is investigated. The concrete used in the corbels is of M-60 grade. Test were carried out on 27 samples of size 150 x 150 x 200- mm were shear span was varied from 175 to 200 as shown in table (5) and concrete …
Published in International Journal of Concrete Technology · Vol. 2, Issue 2, 2016 · pp. 23–29 Read article
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An overview on the rheology of recycled aggregate concrete with the influence of chemical admixtures
Abstract: : Concrete is one of the most widely used construction material because of its property to be moulded into any kind of structure and shape due to its fluidity at early stages. The fresh properties of concrete can be characterized by its flow behaviour. Rheology is the scientific description of flow properties. Super-plasticizers and air-entrainers are some of the most used chemical admixtures that affect the rheological parameters of fresh …
Published in International Journal of Concrete Technology · Vol. 5, Issue 1, 2019 · pp. 14–24 Read article
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Regration Analysis of Compressive Strength of Recycled Aggregate Concrete with Ground Granulated Blast-Furnace Slag and Fly Ash
Abstract: In this research work presents the compressive strength of recycled aggregate concrete (RAC) with recycled coarse aggregate (RCA) that coming from single source and the results of an investigation on the influence of recycled coarse aggregate (RCA) on compressive strength of recycled concrete are accessible. Natural aggregates concrete cubes were cured in normal water for 28-days obtain virgin and RCA. The properties of natural coarse aggregate (NCA) and (RCA) and …
Published in International Journal of Concrete Technology · Vol. 8, Issue 1, 2022 · pp. 9–16 Read article
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Structural Behavior of Railway Bridges Against Wheel Loading by Finite Element Analysis
Abstract: Three dimensional numerical investigations carried out on railway bridges using ABAQUS/Explicit finite element program. The length of bridge 30 m and single track was considered in the present study. The bridge members such as main girder, cross girders and truss members are designed according to Indian Railway Standard (IRS) and the geometry of the rail was also modeled according to the standard. The constitutive and fracture behavior of materials have …
Published in International Journal of Structural Engineering and Analysis · Vol. 3, Issue 1, 2017 · pp. 1–14 Read article
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Evaluation of Rutting Susceptibility of Bituminous Mixes Using Finite Element Modeling
Abstract: Pavement performance mainly depends on the quality of bituminous mixes. Poor bituminous mixes cause premature failures such as rutting or permanent deformation, cracking, bleeding etc. The design of bituminous mixes should contain certain criteria to prevent premature failures. The mixes designed based on these criteria are generally known as performance based mix design and are gaining popularity in the recent times. Among various types of pavement failures, permanent deformation or …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 2, Issue 1, 2016 · pp. 50–54 Read article
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Correlating the Strength Parameters of Rubber Modified Asphalt Concrete
Abstract: Building verified models can help in predicting performance characteristics of asphalt concrete and saving time and money. An attempt has been made in the present investigation to prepare asphalt concrete mixtures for wearing course. Crumb rubber was implemented to prepare modified asphalt binder, which was obtained from Nasiriyah, Erbil, and Dourah oil refineries. Asphalt concrete specimens of control and rubber modified binder have been prepared and tested for Marshall stability, …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 7, Issue 1, 2021 · pp. 15–20 Read article
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Correlating the Fatigue Life of Asphalt Concrete with Permanent Deformation
Abstract: Modelling the deformation-fatigue life of asphalt concrete can furnish an easy access for prediction of the pavement behavior under various service circumstances. An attempt has been made in this investigation to correlate the fatigue life of asphalt concrete with the permanent deformation after considering the test variables such as binder content, testing temperature, practicing moisture damage, and practicing ageing. It can be observed that at high microstrain level of 750, …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 7, Issue 2, 2021 · pp. 22–32 Read article
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Integrated PM2.5 Estimation Using Satellite Images, Pollution Station Data, Meteorological Data and Artificial Neural Network (Case Study: Tehran City)
Abstract: ABSTRACTNowadays, the use of remote sensing to monitor airborne particulates by spatial continuity is made possible by the MODIS Sensor Aerosol Optical Depth (AOD) products. In this study, a simplified aerosol estimation model (SARA) was used to estimate the aerosol optical depth. For this purpose, the MODIS sensor data as inputs to predict PM2.5 near the surface, aerosol optical depth data and meteorological data (wind speed and direction, air temperature, …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 6, Issue 2, 2020 · pp. 38–50 Read article
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Deep Learning to Detect Pneumonia from Chest X-Ray Image
Abstract: Pneumonia is an acute pulmonary infection that is caused by viruses or by bacteria and it causes inflammation in the lungs. In 2019, a total of 2.5 million people died because of pneumonia, out of which, one third were younger than the age of 5. This infection was diagnosed by taking a chest Xray. The prediction of diseases is mainly based on human knowledge. In this, the probability of human …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 8, Issue 1, 2022 · pp. 8–14 Read article