Chemical Engineering
The Effect of Magnetic Field on Non-deposition of Nanoparticles in Microchannels Using Euler-Lagrange Method

N. Hedayati; A. Ramiar

Volume 15, Issue 4 , October 2024, Pages 324-337

  The challenge of particle deposition in microchannels has consistently posed issues in nanofluids, adversely impacting the heat transfer rate. This study investigates the novel approach of employing a magnetic field to prevent deposition and enhance the heat transfer of nanoparticles in microchannels, ...  Read More

Air Injection's Effect on a Vertical Tube with Helical Corrugation: An Empirical Investigation

A. Bagheri; S. Karimian Aliabadi; F. Ommi; K. Ghaemi Osgouie

Volume 15, Issue 4 , October 2024, Pages 338-346

  Herein, a non-boiling two-phase flow containing air and water through a downward flow in a vertical tube with helical corrugations has been investigated. In this simulation, various flow rates for air and water are considered, and three corrugation pitches 1, 1.5, and 2 cm are included. It can be seen ...  Read More

Mass Transfer
Multiple Headspace Extraction for Benzene and Toluene Quantitative Analysis in Hot Oils

M. R. Ghavidel; M. Heydari

Volume 15, Issue 4 , October 2024, Pages 347-356

  In this article, the concentration of some volatile organic compounds (VOCs) in the hot oil sample of the Pars petrochemical ethylbenzene unit is presented. Pars Petrochemical is one of the largest producers of ethylbenzene in the Middle East. The hot oil impurities that were analyzed were benzene and ...  Read More

Performance of Heat Recovery Cycle in order to Enhance Efficiency and its Mutual Effect on the Engine Performance with the Aid of Thermodynamic Simulation

H. Radaei; R. Shafaghat; S. Talesh Amiri; B. Alizadeh Kharkeshi

Volume 15, Issue 4 , October 2024, Pages 357-364

  Considering that the heat required for the Waste heat recovery (WHR) cycle of the engine is provided from two parts of the exhaust gas and the cooling system, the mutual influence of the WHR cycle on the engine performance is undeniable. Therefore, in this numerical study, an attempt has been made to ...  Read More

Enhancing Energy Security through Portfolio Thinking: An Analysis of National Energy Portfolios

F. Yazdandoost; S. A. Yazdani

Volume 15, Issue 4 , October 2024, Pages 365-378

  Insisting on independently providing energy due to fossil fuel availability and Economic-political purposes has imposed financial-environmental risks on countries. Inefficient obsolete infrastructures and technologies have caused devastating losses causing technical vulnerabilities in the energy sector. ...  Read More

Energy Efficiency of Residential Buildings in Cold and Dry Climates using Simulation-based Comparative Analysis: Case Study in Tabriz

N. Amani; A. Sabamehr

Volume 15, Issue 4 , October 2024, Pages 379-391

  The purpose of this research is to analyze the energy of a residential building in the city of Tabriz with a cold and dry climate using energy simulation to provide a model to minimize energy consumption. A comparative model of energy consumption analysis in a three-story building unit with dimensions ...  Read More

Optimizing Heat Dissipation in Microchannel Heat Sinks using Hybrid Nanofluids: A Computational Study

F. Nasiri Khamesloo; D. Domiri Ganji

Volume 15, Issue 4 , October 2024, Pages 392-401

  The use of microchannel heat sinks is one of the most popular methods for cooling electronic components. In recent years, fractal microchannels have attracted researchers' attention, leading to increased heat transfer and reduced pressure drop compared to parallel microchannels. In this study, two hybrid ...  Read More