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- Mohammadreza Hassan, Rad Sadri, +4 authors Emad Sadeghinezhad
- Entropy
- 2013

This article mainly concerns theoretical research on entropy generation influences due to heat transfer and flow in nanofluid suspensions. A conventional nanofluid of alumina-water (Al2O3-H2O) was considered as the fluid model. Due to the sensitivity of entropy to duct diameter, miniand microchannels with diameters of 3 mm and 0.05 mm were considered, and a… (More)

- Salim Newaz Kazi, Ahmad Badarudin, +5 authors Nur Ily Syuhada
- Nanoscale research letters
- 2015

This paper presents a unique synergistic behavior between a graphene oxide (GO) and graphene nanoplatelet (GnP) composite in an aqueous medium. The results showed that GO stabilized GnP colloid near its isoelectric point and prevented rapid agglomeration and sedimentation. It was considered that a rarely encountered charge-dependent electrostatic… (More)

- Mohammad Mehrali, Emad Sadeghinezhad, +4 authors Hendrik Simon Cornelis Metselaar
- Nanoscale research letters
- 2014

In the present study, stable homogeneous graphene nanoplatelet (GNP) nanofluids were prepared without any surfactant by high-power ultrasonic (probe) dispersion of GNPs in distilled water. The concentrations of nanofluids were maintained at 0.025, 0.05, 0.075, and 0.1 wt.% for three different specific surface areas of 300, 500, and 750 m2/g. Transmission… (More)

- Samira Gharehkhani, Emad Sadeghinezhad, +4 authors Mohd Nashrul Mohd Zubir
- Carbohydrate polymers
- 2015

The requirement for high quality pulps which are widely used in paper industries has increased the demand for pulp refining (beating) process. Pulp refining is a promising approach to improve the pulp quality by changing the fiber characteristics. The diversity of research on the effect of refining on fiber properties which is due to the different pulp… (More)

- Hooman Yarmand, Samira Gharehkhani, Salim Newaz Kazi, Emad Sadeghinezhad, Mohammad Reza Safaei
- TheScientificWorldJournal
- 2014

Thermal characteristics of turbulent nanofluid flow in a rectangular pipe have been investigated numerically. The continuity, momentum, and energy equations were solved by means of a finite volume method (FVM). The symmetrical rectangular channel is heated at the top and bottom at a constant heat flux while the sides walls are insulated. Four different… (More)

- Hussein Togun, Mohammad R. Safaei, +4 authors Emad Sadeghinezhad
- Applied Mathematics and Computation
- 2014

This paper presents a numerical study of heat transfer to turbulent and laminar Cu/water flow over a backward-facing step. Mathematical model based on finite volume method with a FORTRAN code is used to solve the continuity, momentum, energy and turbulence equations. Turbulence was modeled by the shear stress transport (SST) K–x Model. In this simulation,… (More)

- M. Goodarzi, M. R. Safaei, +5 authors N. Jomhari
- TheScientificWorldJournal
- 2014

The effect of radiation on laminar and turbulent mixed convection heat transfer of a semitransparent medium in a square enclosure was studied numerically using the Finite Volume Method. A structured mesh and the SIMPLE algorithm were utilized to model the governing equations. Turbulence and radiation were modeled with the RNG k-ε model and Discrete… (More)

- Rad Sadri, Goodarz Ahmadi, +4 authors Nashrul Zubir
- Nanoscale research letters
- 2014

Recently, there has been considerable interest in the use of nanofluids for enhancing thermal performance. It has been shown that carbon nanotubes (CNTs) are capable of enhancing the thermal performance of conventional working liquids. Although much work has been devoted on the impact of CNT concentrations on the thermo-physical properties of nanofluids,… (More)

- E Sadeghinezhad, S N Kazi, M Dahari, Mohammad Reza Safaei, Rad Sadri, A Badarudin
- Critical reviews in food science and nutrition
- 2015

Heat exchanger performance degrades rapidly during operation due to formation of deposits on heat transfer surfaces which ultimately reduces service life of the equipment. Due to scaling, product deteriorates which causes lack of proper heating. Chemistry of milk scaling is qualitatively understood and the mathematical models for fouling at low temperatures… (More)

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