Volume 21 (2024)
Volume 20 (2023)
Volume 19 (2022)
Volume 18 (2021)
Volume 17 (2020)
Volume 16 (2019)
Volume 15 (2018)
Volume 14 (2017)
Volume 13 (2016)
Volume 12 (2015)
Volume 11 (2014)
Volume 10 (2013)
Volume 9 (2012)
Volume 8 (2011)
Volume 7 (2010)
Volume 6 (2009)
Volume 5 (2008)
Volume 4 (2007)
Volume 3 (2006)
Volume 2 (2005)
Volume 1 (2004)
Transport Phenomena,
Impact of Bed Loading on the Minimum Spouting Velocity of Polydisperse Simple-agglomerates in a Conical Fluidized Bed

A.R. bahramian

Volume 19, Issue 3 , September 2022, , Pages 29-49


  The impact of bed loading on minimum spouting velocity (ums) of polydispersed TiO2 particles was studied in a conical fluidized bed. The experiments were performed at different bed loadings according to Gaussian and narrow-cut particle size distribution (PSD). The bed consisted of simple-agglomerates ...  Read More

Transport Phenomena,
Investigation of Bubble Characteristics by Photographic Method

S. Amirzadeh; J.S Moghaddas

Volume 19, Issue 3 , September 2022, , Pages 69-80


  Most industrial operating units are basically in contact with two gas and liquid phases. Bubble characteristics over the last years have been determined through different methods. In this project a mass transfer system has been designed for absorbing gas bubbles by liquid phase. The mass transfer and ...  Read More

Transport Phenomena,
Effect of Isopropanol on the Fluidization of Hydrophilic Titanium Nano-Powder

H. Hoorijani; R. Zarghami; N. Mostoufi

Volume 19, Issue 2 , June 2022, , Pages 51-67


  The effect of adding isopropanol (ISP) to nitrogen as the fluidizing gas on the hydrodynamics of the fluidization of hydrophilic titanium nanoparticles was studied. It was shown by the pressure drop method that adding ISP reduces the minimum fluidization velocity. Wavelet transform of the pressure fluctuations ...  Read More

Transport Phenomena,
Drying Apple Slices in a Rotating-Tray Convective Dryer: A Study on Dehydration Characteristics and Qualitative Attributes

Hamid Ghasemkhani; Farhad Khoshnam; Mohamad Reza Kamandar

Volume 18, Issue 3 , September 2021, , Pages 16-32


  To improve quality attributes of the final dried product and execute a better management of the required energy, optimal process and technology it is essential to dry agri-food materials. This work is aimed at studying the dehydration characteristics and qualitative traits (color, shrinkage, rehydration ...  Read More

Transport Phenomena,
The CFD Provides Data for Adaptive Neuro-Fuzzy to Model the Heat Transfer in Flat and Discontinuous Fins

R. Beigzadeh

Volume 16, Issue 2 , June 2019, , Pages 57-69

  In the present study, Adaptive Neuro–Fuzzy Inference System (ANFIS) approach was applied for predicting the heat transfer and air flow pressure drop on flat and discontinuous fins. The heat transfer and friction characteristics were experimentally investigated in four flat and discontinuous fins ...  Read More

Transport Phenomena,
Study on diffusion coefficient of benzene and ethyl benzene vapours in nanoporous silica aerogel and silica aerogel-activated carbon composites

A. Mohammadi; J. Moghaddas

Volume 16, Issue 1 , March 2019, , Pages 1-21

  In this study, nanoporous silica aerogel and silica aerogel-activated carbon composites have been synthesized using a water glass precursor by cost effective ambient pressure drying method. Equilibrium and kinetics of benzene and ethyl benzene adsorption on silica aerogel and its composites have been ...  Read More

Transport Phenomena,
Synthesis of zeolite NaA nano-crystalls; effect of synthesis parameters on crystallinity and crystal size

S. M. Mirfendereski

Volume 16, Issue 1 , March 2019, , Pages 22-38

  Abstract In this work hydrothermal synthesis of zeolite NaA crystals with a composition of Al2O3:aSiO2:bNa2O:cH2O was investigated. Effects of SiO2/Al2O3, Na2O/Al2O3 and H2O/Al2O3 ratios and crystallization temperature and time were studied on crystallinity and crystal size of zeolite NaA crystals. It ...  Read More

Transport Phenomena,
Transient thermal study of recuperative tube in tube heat exchanger operating in refrigeration system using experimental test and mathematical simulation

A. Saberimoghaddam; M. M Bahri Rasht Abadi

Volume 14, Issue 3 , August 2017, , Pages 3-18

  Joule-Thomson cooling systems are used in refrigeration and liquefaction processes. There are extensive studies on Joule-Thomson cryogenic systems, but most of them coverage steady state conditions or lack from experimental data. In the present work, transient thermal behavior of Joule-Thomson cooling ...  Read More

Transport Phenomena,
Kinetics of Propane Hydrate Formation in Agitated Reactor: A Mass Transfer Approach

P. Goodarzi; V. Mohebbi

Volume 14, Issue 2 , 2017, , Pages 48-58

  Understanding the kinetics of gas hydrate formation is essential to model and predict the hydrate formation (or dissociation) process. In the present paper, we investigated the formation of pure propane gas hydrate as a former gas. In this regard, several experiments were conducted to measure the rate ...  Read More

Transport Phenomena,
Experimental study of hydrodynamic characteristics of improved sieve tray with push valves

T. Zarei; J. Khorshidi

Volume 14, Issue 1 , March 2017, , Pages 40-51

  This paper addresses an experimental investigation in the hydrodynamic behavior of a modified slotted sieve tray. Slotted sieve tray (Push valve sieve tray) is a sieve tray that the push valves have been utilized on the tray deck to eliminate liquid gradients and non-uniformity of liquid distribution ...  Read More

Transport Phenomena,
Three-dimensional CFD modeling of fluid flow and heat transfer characteristics of Al2O3/water nanofluid in microchannel heat sink with Eulerian-Eulerian approach

Hossein Hadi Najafabadi; Mostafa Keshavarz Moraveji

Volume 13, Issue 4 , November 2016, , Pages 46-61

  In this paper, three-dimensional incompressible laminar fluid flow in a rectangular microchannel heat sink (MCHS) using Al2O3/water nanofluid as a cooling fluid is numerically studied. CFD prediction of fluid flow and forced convection heat transfer properties of nanofluid using single-phase and two-phase ...  Read More

Transport Phenomena,
An investigation of heat and mass transfer enhancement of air dehumidification with addition of γ-Al2O3 nano-particles to liquid desiccant

Leila Omidvar Langroudi; hassan pahlavanzadeh; sara nanvakenari

Volume 13, Issue 4 , November 2016, , Pages 96-112

  This study introduces an experimental and theoretical investigation of the performance of a proposed air dehumidification system using a nanofluid of γ-alumina nano-particles in LiBr/H2O as a desiccant. Comparative experiments organized using a central composite design were carried out to evaluate ...  Read More

Transport Phenomena,
Thermodynamic and Heat Transfer Evaluation of Pocket Drying Section in the Multi-Cylinder Dryers of Paper Machine

Sh. Ghodbanan; R. Alizadeh; S. Shafiei

Volume 13, Issue 2 , April 2016, , Pages 57-70

  In this study a developed model has been used to evaluate the paper drying process and examine the pocket dryer conditions of a multi-cylinder fluting paper machine. The model has been developed based on the mass and energy balance relationships in which the heat of sorption and its variations with paper ...  Read More

Process Control and Engineering, Process Safety, HSE
Bubble formation on a single orifice in a gas solid fluidized bed using digital image analysis

A. Dehghan Lotfabad; S. Movahedirad; M.T. Sadeghi

Volume 13, Issue 1 , January 2016, , Pages 60-72

  Digital Image Analysis (DIA) has been employed to characterize the time evolution of a bubble injected from a single orifice into a pseudo 2-dimansional gas-solid fluidized bed. The injected bubble diameter increased with the square root of time before detachment. During bubble free flight in the bed, ...  Read More

Transport Phenomena,
Experimental Study and Mathematical Modeling of the Osmotic Drying Process

F. Shafiee Langari; K. Movagharnejad*

Volume 12, Issue 3 , July 2015, , Pages 15-32

  ne"> The osmotic dehydration of three agricultural products including carrot, zucchini and turnip has been studied in this research. The effect of several factors including temperature, sample to osmotic solution weight ratio and the concentration of the osmotic solutes on the osmotic dehydration ...  Read More

Transport Phenomena,
Experimental and CFD Study of the Tube Configuration Effect on the Shell-Side Thermal Performance in a Shell and Helically Coiled Tube Heat Exchanger

R. Beigzadeh; A. Parvareh; M. Rahimi

Volume 12, Issue 2 , April 2015, , Pages 13-25

  "> Despite numerous studies of shell and helically coiled tube heat exchangers, a few investigations on the heat transfer and flow characteristic consider the geometrical effects like coil pitch. Moreover, this scarcity is highlighted for the shell side of this type of heat exchangers. This study ...  Read More

Transport Phenomena,
Experimental Study and CFD Modeling of the Ohmic Heating Process in a Static Two-Phase Biosolid – Liquid System

M. Keshavarz Moraveji*; E. Ghaderi

Volume 12, Issue 2 , April 2015, , Pages 75-87

  The effective parameters on Ohmic heating in static system containing biosolid-water were studied. The effects of distribution of particles, salinity and electric field strength on electrical conductivity, profiles of temperature, heat generation have been investigated. The experimental data verification ...  Read More

Transport Phenomena,
Thermal Conductivity of Water Based Nanofluids Containing Decorated Multi Walled Carbon Nanotubes with Different Amount of TiO2 Nanoparticles

S. Abbasi; S. M. Zebarjad; S. H. NoieBaghban; A. Youssef; M. S. Ekrami-Kakhki

Volume 12, Issue 1 , January 2015, , Pages 30-40

  In this paper, we report for the first time, thermal conductivity behavior of nanofluids containing decorated MWCNTs with different amount of TiO2 nanoparticles. TEM image confirmed that the outer surface of MWCNTs successfully decorated with TiO2 nanoparticles. The results of thermal conductivity behavior ...  Read More

Transport Phenomena,
Hydrodynamic Characteristics of Dense Conical Fluidized Bed: CFD Simulation and Experimental Verification

A. R. Bahramian

Volume 12, Issue 1 , January 2015, , Pages 42-59

  > The hydrodynamic characteristics of dense conical fluidized bed were investigated experimentally and numerically. Experimental studies have been carried out in a bed containing TiO2 particles belonging to A/C boundary of Geldart's classification with a wide particle size distribution. Pressure measurements ...  Read More