Exergoeconomic analysis of an absorption refrigeration and natural gas-fueled diesel power generator cogeneration system

José Ricardo Sodré, Felipe Raúl Ponce Arrieta*, Mario David Mateus Herrera, Paola Helena Barros Zárante

*Corresponding author for this work

Research output: Contribution to journalReview article

Abstract

This work presents a thermoeconomic analysis of a cogeneration system using the exhaust gas from a natural gas-fueled diesel power generator as heat source for an ammonia-water absorption refrigeration system. The purpose of the analysis is to obtain both unit exergetic and exergoeconomic costs of the cogeneration system at different load conditions and replacement rates of diesel oil by natural gas. A thermodynamic model of the absorption chiller was developed using the Engineering Equation Solver (EES) software to simulate the exergetic and exergoeconomic cogeneration costs. The data entry for the simulation model included available experimental data from a dual-fuel diesel power generator operating with replacement rates of diesel oil by natural gas of 25%, 50% and 75%, and varying engine load from 10 kW to 30 kW. Other required data was calculations using the GateCycle software, from the available experimental data. The results show that, in general, the cogeneration cold unit exergetic and exergoeconomic costs increases with increasing engine load and decreases with increasing replacement rate of diesel oil by natural gas under the conditions investigated. Operating with 3/4 of the rated engine power and replacing 50% of diesel oil by natural gas, the exergoeconomic cost of the produced power is increased by 75%, and the exergoeconomic cost of the produced cold is decreased by 17%. The electric power unit exergetic and exergoeconomic costs indicate that the replacement of diesel oil by natural gas is feasible in the present considerations for engine operation at medium and high loads.

Original languageEnglish
Pages (from-to)155-164
Number of pages10
JournalJournal of Natural Gas Science and Engineering
Volume36
Issue numberPart A
Early online date15 Oct 2016
DOIs
Publication statusPublished - 1 Nov 2016

Fingerprint

Absorption refrigeration
Natural gas
Engines
Costs
Water absorption
Diesel fuels
Exhaust gases
Ammonia
Data acquisition
Oils
Thermodynamics

Bibliographical note

© 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • Absorption refrigeration
  • Cogeneration
  • Exergoeconomic analysis
  • Natural gas
  • Power generation

Cite this

Sodré, J. R., Ponce Arrieta, F. R., Mateus Herrera, M. D., & Barros Zárante, P. H. (2016). Exergoeconomic analysis of an absorption refrigeration and natural gas-fueled diesel power generator cogeneration system. Journal of Natural Gas Science and Engineering, 36(Part A), 155-164. https://doi.org/10.1016/j.jngse.2016.10.022
Sodré, José Ricardo ; Ponce Arrieta, Felipe Raúl ; Mateus Herrera, Mario David ; Barros Zárante, Paola Helena. / Exergoeconomic analysis of an absorption refrigeration and natural gas-fueled diesel power generator cogeneration system. In: Journal of Natural Gas Science and Engineering. 2016 ; Vol. 36, No. Part A. pp. 155-164.
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abstract = "This work presents a thermoeconomic analysis of a cogeneration system using the exhaust gas from a natural gas-fueled diesel power generator as heat source for an ammonia-water absorption refrigeration system. The purpose of the analysis is to obtain both unit exergetic and exergoeconomic costs of the cogeneration system at different load conditions and replacement rates of diesel oil by natural gas. A thermodynamic model of the absorption chiller was developed using the Engineering Equation Solver (EES) software to simulate the exergetic and exergoeconomic cogeneration costs. The data entry for the simulation model included available experimental data from a dual-fuel diesel power generator operating with replacement rates of diesel oil by natural gas of 25{\%}, 50{\%} and 75{\%}, and varying engine load from 10 kW to 30 kW. Other required data was calculations using the GateCycle software, from the available experimental data. The results show that, in general, the cogeneration cold unit exergetic and exergoeconomic costs increases with increasing engine load and decreases with increasing replacement rate of diesel oil by natural gas under the conditions investigated. Operating with 3/4 of the rated engine power and replacing 50{\%} of diesel oil by natural gas, the exergoeconomic cost of the produced power is increased by 75{\%}, and the exergoeconomic cost of the produced cold is decreased by 17{\%}. The electric power unit exergetic and exergoeconomic costs indicate that the replacement of diesel oil by natural gas is feasible in the present considerations for engine operation at medium and high loads.",
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Sodré, JR, Ponce Arrieta, FR, Mateus Herrera, MD & Barros Zárante, PH 2016, 'Exergoeconomic analysis of an absorption refrigeration and natural gas-fueled diesel power generator cogeneration system', Journal of Natural Gas Science and Engineering, vol. 36, no. Part A, pp. 155-164. https://doi.org/10.1016/j.jngse.2016.10.022

Exergoeconomic analysis of an absorption refrigeration and natural gas-fueled diesel power generator cogeneration system. / Sodré, José Ricardo; Ponce Arrieta, Felipe Raúl; Mateus Herrera, Mario David; Barros Zárante, Paola Helena.

In: Journal of Natural Gas Science and Engineering, Vol. 36, No. Part A, 01.11.2016, p. 155-164.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Exergoeconomic analysis of an absorption refrigeration and natural gas-fueled diesel power generator cogeneration system

AU - Sodré, José Ricardo

AU - Ponce Arrieta, Felipe Raúl

AU - Mateus Herrera, Mario David

AU - Barros Zárante, Paola Helena

N1 - © 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2016/11/1

Y1 - 2016/11/1

N2 - This work presents a thermoeconomic analysis of a cogeneration system using the exhaust gas from a natural gas-fueled diesel power generator as heat source for an ammonia-water absorption refrigeration system. The purpose of the analysis is to obtain both unit exergetic and exergoeconomic costs of the cogeneration system at different load conditions and replacement rates of diesel oil by natural gas. A thermodynamic model of the absorption chiller was developed using the Engineering Equation Solver (EES) software to simulate the exergetic and exergoeconomic cogeneration costs. The data entry for the simulation model included available experimental data from a dual-fuel diesel power generator operating with replacement rates of diesel oil by natural gas of 25%, 50% and 75%, and varying engine load from 10 kW to 30 kW. Other required data was calculations using the GateCycle software, from the available experimental data. The results show that, in general, the cogeneration cold unit exergetic and exergoeconomic costs increases with increasing engine load and decreases with increasing replacement rate of diesel oil by natural gas under the conditions investigated. Operating with 3/4 of the rated engine power and replacing 50% of diesel oil by natural gas, the exergoeconomic cost of the produced power is increased by 75%, and the exergoeconomic cost of the produced cold is decreased by 17%. The electric power unit exergetic and exergoeconomic costs indicate that the replacement of diesel oil by natural gas is feasible in the present considerations for engine operation at medium and high loads.

AB - This work presents a thermoeconomic analysis of a cogeneration system using the exhaust gas from a natural gas-fueled diesel power generator as heat source for an ammonia-water absorption refrigeration system. The purpose of the analysis is to obtain both unit exergetic and exergoeconomic costs of the cogeneration system at different load conditions and replacement rates of diesel oil by natural gas. A thermodynamic model of the absorption chiller was developed using the Engineering Equation Solver (EES) software to simulate the exergetic and exergoeconomic cogeneration costs. The data entry for the simulation model included available experimental data from a dual-fuel diesel power generator operating with replacement rates of diesel oil by natural gas of 25%, 50% and 75%, and varying engine load from 10 kW to 30 kW. Other required data was calculations using the GateCycle software, from the available experimental data. The results show that, in general, the cogeneration cold unit exergetic and exergoeconomic costs increases with increasing engine load and decreases with increasing replacement rate of diesel oil by natural gas under the conditions investigated. Operating with 3/4 of the rated engine power and replacing 50% of diesel oil by natural gas, the exergoeconomic cost of the produced power is increased by 75%, and the exergoeconomic cost of the produced cold is decreased by 17%. The electric power unit exergetic and exergoeconomic costs indicate that the replacement of diesel oil by natural gas is feasible in the present considerations for engine operation at medium and high loads.

KW - Absorption refrigeration

KW - Cogeneration

KW - Exergoeconomic analysis

KW - Natural gas

KW - Power generation

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Sodré JR, Ponce Arrieta FR, Mateus Herrera MD, Barros Zárante PH. Exergoeconomic analysis of an absorption refrigeration and natural gas-fueled diesel power generator cogeneration system. Journal of Natural Gas Science and Engineering. 2016 Nov 1;36(Part A):155-164. https://doi.org/10.1016/j.jngse.2016.10.022