ISKORIŠĆAVANJE OTPADNE TOPLOTE IZ BIOGASNIH KOGENERACIJA ORC CIKLUSOM

Ognjen Ratković

doi:10.24867/31AM07Ratkovic

Mechanical Engineering

Vol. 40 No. 06 (2025): Proceedings of the Faculty of Technical Sciences

THE UTILIZATION OF WASTE HEAT FROM BIOGAS COGENERATION THROUGH THE ORC CYCLE

Ognjen Ratković

DOI:: https://doi.org/10.24867/31AM07Ratkovic
Submitted: June 9, 2025
Published: 2025-12-10

Abstract

The aim of this paper is to analyze the potential of biogas use in cogeneration plants and its role in enhancing energy production efficiency through the ORC (Organic Rankine Cycle) process. Biogas, as a renewable resource, can be efficiently combusted to generate energy and waste heat. Instead of being lost, the waste heat can be utilized to produce additional amounts of energy using the ORC cycle. Although these concepts are distinct, their synergy offers significant advantages in terms of energy efficiency.

References

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[1] [1] T. Brammer, A. Bridgwater, Biomass and bioenergy, (2002)

[2] [2] D. Baxter, Biomass and Bioenergy, (2005)

[3] [3] S. Quoilin, M. Orosz, H. Hemond, V. Lemort, A Technical, Economic and Market Review of Organic Rankine Cycle, (2011)

[4] [4] S. Quoilin, Experimental study and modeling of a scroll expander integrated into an ORC (Organic Rankine Cycle) system, PhD thesis, University of Liege, 2011.

[5] [5] H. Chen, D. Goswami, E. Stefanakos, A review of thermodynamic cycles and working fluids for the conversion of low-grade heat, Renewable and Sustainable Energy Reviews, (2010)

[6] [6] S. Quoilin, R. Aumann, A. Grill, A. Schuster, V. Lemort, H. Spliethoff, Dynamic modeling and optimal control strategy of waste heat recovery Organic Rankine Cycles, Applied Energy, 88(6): 2183–2190, (2011)

[7] [7] A. Schuster, S. Karellas, E. Kakaras, H. Spliethoff, Energetic and economic investigation of ORC applications in biomass combustion plants, Applied Thermal Engineering, 29: 1582–1590, (2009)

[8] [8] M. Astolfi, Y. Romano, M. Macchi, E. Macchi, Binary ORC (Organic Rankine Cycles) power plants for the exploitation of medium–low temperature geothermal sources–Part B: Techno-economic optimization, Energy, (2014)