Volume 49, Issue 2
مرور بر اساس
ارسال های اخیر
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Hydrodynamics of Sieve Tray Distillation Column Using CFD Simulation
(University of Tehran, 2015-12-01)Sieve trays are widely used in the gas- liquid contactors such as distillation and absorption towers. In this article, a three-dimensional, two phase CFD model using Euler-Euler framework was developed to simulate a ...
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Efficient Synthesis of Biodiesel From Waste Cooking Oil Catalysed by Al2O3 Impregnated with NaOH
(University of Tehran, 2015-12-01)Due to the high price of virgin vegetable oils and the drawbacks of the homogeneous catalytic transesterification, in this work an economically profitable alternative process was proposed for biodiesel synthesis in which ...
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An Artificial Neural Network Model for Predicting the Pressure Gradient in Horizontal Oil–Water Separated Flow
(University of Tehran, 2015-12-01)In this study, a three–layer artificial neural network (ANN) model was developed to predict the pressure gradient in horizontal liquid–liquid separated flow. A total of 455 data points were collected from 13 data sources ...
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Experimental Study on Performance of Modified Hybrid Liquid Membrane Process for Removal of Cadmium from Wastewater
(University of Tehran, 2015-12-01)Liquid membrane processes have attracted many interests in recent years for removal of heavy metals such as cadmium from industrial wastewaters. In this study, a modified hybrid liquid membrane system is introduced. The ...
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Using Artificial Neural Network for Estimation of Density and Viscosities of Biodiesel–Diesel Blends
(University of Tehran, 2015-12-01)In recent years, biodiesel has been considered as a good alternative of diesel fuels. Density and viscosity are two important properties of these fuels. In this study, density and kinematic viscosity of biodiesel-diesel ...
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Application of Combustion Hot Spot Analysis to Process Furnace with Arbor Coils
(University of Tehran, 2015-12-01)Hot spots are among the most serious operational issues in furnaces as they may result in the destruction of tubes. Hence, it is essential to locate such hot spots precisely on the tube surfaces inside the industrial ...
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Application of Box Behnken Design to Optimize the Parameters to Synthesis Graphene by CVD Process
(University of Tehran, 2015-12-01)This paper discusses the use of Box Behnken design (BBD) approach to plan the experiments for turning the yield of CVD, thickness and layer number of graphene sheets with an overall objective of optimizing the process to ...
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Modeling of Gas Hydrate Formation in the Presence of Inhibitors by Intelligent Systems
(University of Tehran, 2015-12-01)Gas hydrate formation in production and transmission pipelines and consequent plugging of these lines have been a major flow-assurance concern of the oil and gas industry for the last 75 years. Gas hydrate formation rate ...