LAPSE:2023.0907
Published Article
LAPSE:2023.0907
Energy and Economic Assessment of a System Integrated by a Biomass Downdraft Gasifier and a Gas Microturbine
February 21, 2023
Abstract
This work focuses on the energy and economic evaluation of a power generation system composed of a downdraft gasifier and gas microturbine. The gasification process was studied using wood pellets as fuel, while the influence of two gasification agents (air and oxygen-enriched air) on parameters, such as low heating value (LHV), composition, and yield of syngas, were analyzed. The syngas produced from oxygen-enriched air gasification in a downdraft gasifier had an LHV higher than 8 MJ/Nm3, being suitable to be supplied in the gas microturbine. Subsequently, syngas use in the gas microturbine was evaluated, and the results demonstrated that microturbine efficiency dropped from 33.00% to 21.35%, while its power decreased from 200 kW to 81.35 kW. The power generation system was modeled using Aspen Plus® v 11.0 software and validated using results obtained from published experimental studies. Accordingly, the integrated generation system presented an overall efficiency of 11.82% for oxygen-enriched air gasification cases. On the other hand, an economic assessment through risk analysis using Monte Carlo simulations was performed using Crystal Ball® v11.1.2.4.850 software. The economic results indicated that the implementation of a generation system was economically unfeasible, however, if the electricity rate price was increased by 63%, the proposed configuration could be feasible.
This work focuses on the energy and economic evaluation of a power generation system composed of a downdraft gasifier and gas microturbine. The gasification process was studied using wood pellets as fuel, while the influence of two gasification agents (air and oxygen-enriched air) on parameters, such as low heating value (LHV), composition, and yield of syngas, were analyzed. The syngas produced from oxygen-enriched air gasification in a downdraft gasifier had an LHV higher than 8 MJ/Nm3, being suitable to be supplied in the gas microturbine. Subsequently, syngas use in the gas microturbine was evaluated, and the results demonstrated that microturbine efficiency dropped from 33.00% to 21.35%, while its power decreased from 200 kW to 81.35 kW. The power generation system was modeled using Aspen Plus® v 11.0 software and validated using results obtained from published experimental studies. Accordingly, the integrated generation system presented an overall efficiency of 11.82% for oxygen-enriched air gasification cases. On the other hand, an economic assessment through risk analysis using Monte Carlo simulations was performed using Crystal Ball® v11.1.2.4.850 software. The economic results indicated that the implementation of a generation system was economically unfeasible, however, if the electricity rate price was increased by 63%, the proposed configuration could be feasible.
Record ID
Keywords
downdraft gasifier, economic assessment, gas microturbine, Monte Carlo evaluation, Syngas
Subject
Suggested Citation
Calderon Henao N, Venturini OJ, Castillo Santiago Y, Silva Lora EE, Yepes Maya DM, Pamplona EDO, Navarro Hoyos JS, Ando Junior OH. Energy and Economic Assessment of a System Integrated by a Biomass Downdraft Gasifier and a Gas Microturbine. (2023). LAPSE:2023.0907
Author Affiliations
Calderon Henao N: Research Group on Energy & Energy Sustainability (GPEnSE/CNPq), Federal University of Latin American Integration (UNILA), Av. Sílvio Américo Sasdelli 1842, Foz do Iguaçu 85866-000, PR, Brazil; Excellence Group in Thermal Power and Distributed Generatio
Venturini OJ: Excellence Group in Thermal Power and Distributed Generation (NEST), Federal University of Itajubá (UNIFEI), Av. BPS 1303, Itajubá 37500-903, MG, Brazil [ORCID]
Castillo Santiago Y: Laboratory of Thermal Sciences (LATERMO), Department of Mechanical Engineering (TEM/PGMEC), Fluminense Federal University (UFF), Rua Passo da Pátria 156, Niterói 24210-240, RJ, Brazil [ORCID]
Silva Lora EE: Excellence Group in Thermal Power and Distributed Generation (NEST), Federal University of Itajubá (UNIFEI), Av. BPS 1303, Itajubá 37500-903, MG, Brazil
Yepes Maya DM: Excellence Group in Thermal Power and Distributed Generation (NEST), Federal University of Itajubá (UNIFEI), Av. BPS 1303, Itajubá 37500-903, MG, Brazil [ORCID]
Pamplona EDO: Excellence Group in Thermal Power and Distributed Generation (NEST), Federal University of Itajubá (UNIFEI), Av. BPS 1303, Itajubá 37500-903, MG, Brazil
Navarro Hoyos JS: Research Group on Energy & Energy Sustainability (GPEnSE/CNPq), Federal University of Latin American Integration (UNILA), Av. Sílvio Américo Sasdelli 1842, Foz do Iguaçu 85866-000, PR, Brazil
Ando Junior OH: Research Group on Energy & Energy Sustainability (GPEnSE/CNPq), Federal University of Latin American Integration (UNILA), Av. Sílvio Américo Sasdelli 1842, Foz do Iguaçu 85866-000, PR, Brazil; Cabo de Santo Agostinho Academic Unit (UACSA), Rural Federa [ORCID]
Venturini OJ: Excellence Group in Thermal Power and Distributed Generation (NEST), Federal University of Itajubá (UNIFEI), Av. BPS 1303, Itajubá 37500-903, MG, Brazil [ORCID]
Castillo Santiago Y: Laboratory of Thermal Sciences (LATERMO), Department of Mechanical Engineering (TEM/PGMEC), Fluminense Federal University (UFF), Rua Passo da Pátria 156, Niterói 24210-240, RJ, Brazil [ORCID]
Silva Lora EE: Excellence Group in Thermal Power and Distributed Generation (NEST), Federal University of Itajubá (UNIFEI), Av. BPS 1303, Itajubá 37500-903, MG, Brazil
Yepes Maya DM: Excellence Group in Thermal Power and Distributed Generation (NEST), Federal University of Itajubá (UNIFEI), Av. BPS 1303, Itajubá 37500-903, MG, Brazil [ORCID]
Pamplona EDO: Excellence Group in Thermal Power and Distributed Generation (NEST), Federal University of Itajubá (UNIFEI), Av. BPS 1303, Itajubá 37500-903, MG, Brazil
Navarro Hoyos JS: Research Group on Energy & Energy Sustainability (GPEnSE/CNPq), Federal University of Latin American Integration (UNILA), Av. Sílvio Américo Sasdelli 1842, Foz do Iguaçu 85866-000, PR, Brazil
Ando Junior OH: Research Group on Energy & Energy Sustainability (GPEnSE/CNPq), Federal University of Latin American Integration (UNILA), Av. Sílvio Américo Sasdelli 1842, Foz do Iguaçu 85866-000, PR, Brazil; Cabo de Santo Agostinho Academic Unit (UACSA), Rural Federa [ORCID]
Journal Name
Processes
Volume
10
Issue
11
First Page
2377
Year
2022
Publication Date
2022-11-12
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr10112377, Publication Type: Journal Article
Record Map
Published Article
LAPSE:2023.0907
This Record
External Link
https://doi.org/10.3390/pr10112377
Publisher Version
Download
Meta
Record Statistics
Record Views
349
Version History
[v1] (Original Submission)
Feb 21, 2023
Verified by curator on
Feb 21, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.0907
Record Owner
Auto Uploader for LAPSE
Links to Related Works