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Design simulation and performance analysis of a new combined waste heat and biogas heating system for severe cold oilfield areas

Author

Listed:
  • Liu, Changyu
  • Wei, Xinxin
  • Bian, Ji
  • Wang, Di
  • Yang, Ruitong
  • Zhen, Feng
  • Wang, Yushi
  • Li, Dong
  • Yang, Erlong

Abstract

The new heat infrastructure stemming from the integration of multiple energy sources to complement each other oilfield wastewater solar anaerobic reactor is of great significance for achieving the dual carbon target in severe cold oilfield areas of China. The complex energy and mass balance of multi-energy complementary system is the most critical factor to improve its energy efficiency. In this work, a fresh numerical model approach is presented to study the coupled process, which takes into account photovoltaic combustion, biogas combustion, multi-energy supplementary heating and reactor temperature maintenance, with the aim of analyzing the energy consumption, performance and environmental benefits of the system under different operating conditions. The findings indicate that the anaerobic reactor exhibits the greatest energy efficiency with the lowest energy consumption of 55,296 kW and the rate of primary energy utilization for 2.84 when keeping 35 °C constant temperature. Versus the traditional heating system powered by coal, the annual CO2 reduction of this system is 12.15 t, and the annual wastewater treatment capacity can reach 2700 t, which has good benefits for cleaner production.

Suggested Citation

  • Liu, Changyu & Wei, Xinxin & Bian, Ji & Wang, Di & Yang, Ruitong & Zhen, Feng & Wang, Yushi & Li, Dong & Yang, Erlong, 2025. "Design simulation and performance analysis of a new combined waste heat and biogas heating system for severe cold oilfield areas," Energy, Elsevier, vol. 321(C).
    • Handle: RePEc:eee:energy:v:321:y:2025:i:c:s0360544225007972
    DOI: 10.1016/j.energy.2025.135155
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