Study of waste heat recovery potential and optimization of the power production by an organic Rankine cycle in FPSO units

Document Type : Original Article

Authors

1 Department of Mechanical Engineering, Pardis Branch, Islamic Azad University, Pardis, Iran

2 Department of Thermal Cycles and Heat Exchangers, Niroo Research Institute, Tehran, Iran

Abstract

FPSO or Floating Production Storage and Offloading platforms are increasingly used to explore deep-seated and offshore waters. In order to realize the improvement and progress in the production process, as well as the generation of electricity in its production phases, it is essential to invest in efficient technologies that reduce the cost and release of carbon dioxide into the atmosphere. From this perspective, ORC has a high potential for energy recovery from the thermal resources of the various FPSO platforms.  In this paper, in addition to the baseline, four different scenarios were used to use the exhaust heat output of turbines in the service. The suggestion is more attractive, that two turbines generate power in all production intervals, and exhaust gases from the CO2 turbine as a heating source in the ORC is used. In this way, the heat of exhaust turbines can be used to supply heat and supply of the demand for electricity, and using ORC (with heat recovery) in heat recovery, emissions reduced carbon dioxide. This study showed promising results in using ORC for heat recovery, an average of 22.5% for reducing fuel consumption and carbon dioxide emissions Lifetime FPSO provides.

Keywords

References

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History

  • Receive Date: 20 May 2019
  • Revise Date: 29 June 2019
  • Accept Date: 26 August 2019

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