Iranian Journal of Gas Engineering

Techno-Economic Evaluation Evaluation of Heat Recovery from the Chimney of the Furnaces of the Dehumidification Unit of Bidboland Gas Refinery Using the Organic Rankine Cycle

Document Type : Applied Article

Authors

1 Assistant Professor, Department of Mechanical Engineering, Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran

2 Assistant Professor, Department of Chemical Engineering, Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran

3 M.Sc. of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran

Abstract

The energy crisis around the world justifies the exploitation of projects centered on the use of waste energy and has made its implementation necessary. The main challenges of industrial managers in implementing a waste heat recovery plan, besides paying attention to climate and environmental issues, are reducing fuel consumption and dependence on electricity, as well as justifying the plan from an economic point of view. In the current research, the use of waste heat from the furnaces of the dehumidification unit of Bidbland Refinery is taken into consideration by sampling the combustion gases in a section of the chimney with a height of 11 meters and a diameter of 1.24 meters, in addition to the parameters required for environmental tests, waste energy It was also calculated from furnaces. The power generation process has been simulated with the help of the organic Rankine cycle in three designs: simple, superheated, and regenerative. In carrying out this simulation, it is assumed that the temperature of the input sources and the temperature of the output source are in a certain range, and are in the steady state. Finally, based on the thermodynamic and economic analysis, R142b fluid in the superheated and normal butane cycle and R245fa in the simple cycle are the main priorities used in the refinery pilot with a payback period of 2.63, 2.64 and 2.97 years, respectively.

Keywords

Main Subjects

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Iranian Journal of Gas Engineering
Volume 10, Issue 2 - Serial Number 18
December 2023
Pages 29-41
  • Receive Date: 29 October 2023
  • Revise Date: 28 November 2023
  • Accept Date: 17 December 2023