Exergoecological Evaluation of Power Generation in Steam Cycles Fed by Biomass

Authors

  • Jesus D. Rhenals-Julio Department of Mechanical Engineering, University of Córdoba, Cra 6 No. 77- 305 Montería, Colombia.
  • María K. Galván Castilla Department of Mechanical Engineering, University of Córdoba, Cra 6 No. 77- 305 Montería, Colombia.
  • Stiven Peralta Jorge Department of Mechanical Engineering, University of Córdoba, Cra 6 No. 77- 305 Montería, Colombia.
  • Jorge M. Mendoza Department of Mechanical Engineering, University of Córdoba, Cra 6 No. 77- 305 Montería, Colombia.

DOI:

https://doi.org/10.32479/ijeep.14104

Keywords:

Exergoecology, Exergy, Rankine Cycle, Biomass, rice husk

Abstract

One of the methods to reduce environmental impacts is to use renewable resources such as biomass or even waste. In this work, a novel power generation system in biomass-powered steam cycles was proposed, comprising biomass gasification, a steam turbine, a pump and a condenser. A biomass feedstock (rice husk) was used in the gasifier as input fuel. The devised system was analyzed taking into account the sustainability evaluation that includes thermodynamic and environmental parameters. An energetic, exergetic and exergoecological analysis was carried out. In addition, a detailed sensitivity analysis was performed to assess the effects of varying operating parameters on system efficiency. According to the results, the energy and exergetic efficiencies of the system had a value of 23,680% and 12,830%, respectively, where the boiler and the turbine presented the highest average environmental impact per input and output exergy. The components with the highest environmental impact index associated with exergy destruction were the condenser and the boiler, representing 99,82%, demonstrating profit margins in the formation of pollutants and exergy destruction. The entire system had a total ecological impact of 2,614 mPt/s and can be reduced mainly by improving its exergetic efficiency. Exergoecological assessments can be used to support power generation in complex cycles, especially to reduce the generation of environmental pollution.

Downloads

Download data is not yet available.

Downloads

Published

2023-03-24

How to Cite

Rhenals-Julio, J. D., Castilla, M. K. G., Jorge, S. P., & Mendoza, J. M. (2023). Exergoecological Evaluation of Power Generation in Steam Cycles Fed by Biomass. International Journal of Energy Economics and Policy, 13(2), 537–544. https://doi.org/10.32479/ijeep.14104

Issue

Vol. 13 No. 2 (2023)

Section

Articles

License

Submission of an article implies that the work described has not been published previously , that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, will not be published elsewhere in the same form, without the written consent of the Publisher. The Editors reserve the right to edit or otherwise alter all contributions, but authors will receive proofs for approval before publication.