Seyed Hadi Seyedina

Islamic Azad University Tehran Science and Research Branch | SRBIAU · Department of Chemical Engineering

In this paper, we investigate the connection between energy utilization and financial development for a few nations in Central Europe. In spite of the fact that there are numerous papers on this subject, the distinction between them and this one is that we think about nations that have not however been examined together. The variable that's utilize...

In the present study, everything that researchers need in the field of virology and especially the Coronavirus and the unknown aspects of this virus, along with new scientific findings and its effects on the world from various aspects have been thoroughly discussed. This investigation has described the first origin of the Coronavirus, the types of...

A novel treatment process is presented to separate the salts from the spent caustic. In recent years, refinery and petrochemical producer is forced by more stringent environmental regulations to better monitor and control their wastewater. One of the key contributors to relatively high chemical oxygen demand (COD) and biological oxygen demand (BOD)...

Main purpose of the present study is to develop an appropriate computer program to size and count particles in digital images focusing on eliminating undesirable objects from the image. In this study, the user friendly Graphical User interface (GUI) tool is developed using MATLAB to measure the size of every particle of the digital image. The step...

This paper investigates some kind of properties of NaOH and the Consumption market. Sodium hydroxide (NaOH) is one of the most commonly used laboratory and industrial chemicals. Concentrated sodium hydroxide (also known as lye or caustic soda) causes severe chemical burns of the skin and may damage the cornea of the eye so severely that blindness m...

Ceramic materials are widely used in impact safekeeping systems. Ceramic is a heterogeneous material; its characteristics depend considerably both on specifications of its ingredients and the material structure completely. The finite element method (FEM) can be a useful tool for strength computation of these materials. In this paper, the mechanical...

This paper focuses on the structure and performance of the pressure swirl nozzle and the study of liquid atomization. In this study, the atomizer has been designed and some experiments have been performed on it. Since image processing is an efficient method for measuring the size of the droplet and since it considerably reduces the total measuring...

Granulation is an important step during the production of urea granules. Most of the commercial binders used for granulation are toxic and non-biodegradable. In this study, a fully biodegradable and cost-effective starch-based binder is used for urea granulation in a fluidized bed granulator. The effect of binder properties such as viscosity, surfa...

The fluidized bed coating system is a conventional process of particles coating in various industries. In this work, an experimental investigation was conducted using Response Surface Methodology (RSM) to optimize the coating mass of particles in a top-spray fluidized bed coating. The design of experiments (DOEs) is a useful tool for controlling an...

Recently, refinery and petrochemical producer is forced bymore stringent environmental regulations to better monitor and control their wastewater. One of the key contributors to relatively high chemical oxygen demand (COD) and biological oxygen demand (BOD) is from the acid gas (both CO2 and H2S) and mercaptan removal system(s) typically using dilu...

Experimentally investigated in this work is the hydrodynamics of particulates motion in a cylindrical fluidized bed equipped with a pneumatic nozzle jet flow. Subsequently, the computational fluid dynamics (CFD) is combined with the Eulerian formulation of multiphase flow to describe the hydrodynamics of particulates motion. Similar to free spray j...