Mechanical Engineering
1. Effect of Surface Roughness on Vortex Length and Efficiency of Gas-oil Cyclones through CFD Modelling

Seyed Masoud Vahedi; Farzad Parvaz; Mohsen Khandan Bakavoli; Mohammad Kamali

Volume 9, Issue 1 , Winter 2020, , Pages 68-84

http://dx.doi.org/10.22050/ijogst.2018.102377.1417

Abstract
  Separation of suspended droplets in a fluid flow has been a great concern for scientists and technologists. In the current study, the effect of the surface roughness on flow field and the performance of a gas-oil cyclone is studied numerically. The droplets and the turbulent airflow inside the cyclone ...  Read More

Mechanical Engineering
2. Advanced Analysis of Dew Point Control Unit of Hybrid Refrigeration Systems in Gas Refineries

Mahmoud Afshar; Hamid Rad

Volume 7, Issue 3 , Summer 2018, , Pages 32-52

http://dx.doi.org/10.22050/ijogst.2017.60794.1376

Abstract
  In this paper, an advanced analysis of a novel hybrid compression-absorption refrigeration system (HCARS) for natural gas dew point control unit in a gas refinery is presented. This unit separates the heavy hydrocarbon molecules in the natural gas, which is traditionally carried out by natural gas cooling ...  Read More