Petroleum University of Technology Iranian Journal of Oil and Gas Science and Technology 2345-2412 12 2 2023 04 01 Thermodynamic study of the performance of a new natural gas odorization system for use in a gas pressure regulating station 102 113 230222 10.22050/ijogst.2024.448412.1706 EN Koorosh Goudarzi Department of Mechanical Engineering, Yasouj University, Yasouj, Iran Journal Article 2024 03 13 Due to the limitations of existing natural gas fumigation systems, including the bypass and injection systems, there is a need for the design of a new system with fewer restrictions. This paper addresses this issue by conducting a thermodynamic analysis of the performance of a new system, called the ejector gas perfuming system, across a wide range of parameters, including primary gas pressure (Pg = 500-5500 kPa) and secondary gas pressure (Ps = 200-400 kPa). The results demonstrate that the ejector's performance is primarily influenced by two key factors: the pressure at the ejector's exit and the ejector's entrainment ratio. The findings indicate that the ejector performs optimally when Ps > 250 kPa and 1850 kPa ≤ Pg ≤ 5200 kPa. Outside of this range, its performance declines. https://ijogst.put.ac.ir/article_230222_37170e53fa7c3535cdf7193751c68c24.pdf