Comparison of the Parameters of the Exergoeconomic Environmental Analysis of Two Combined Cycles of Three Pressure Levels with and without Postcombustion

Nowadays, in Mexico, most of the installed electricity generation capacity corresponds to combined cycles, representing 37.1%. For this reason, it is important to maintain these cycles in good operating conditions, with the least environmental impacts. An exergoeconomic and environmental analysis is...

Full description

Saved in:
Bibliographic Details
Published in:Entropy (Basel, Switzerland) Switzerland), 2022-04, Vol.24 (5), p.636
Main Authors: Torres González, Edgar Vicente, Castro Hernández, Sergio, Lugo Méndez, Helen Denise, Arroyo Cabañas, Fernando Gabriel, Valencia López, Javier, Lugo Leyte, Raúl
Format: Article
Language:English
Subjects:
Acid rain
Business metrics
combined cycle
Combined cycle power generation
Costs
Criteria
Electricity generation
Energy
Environmental impact
environmental indicators
exergoeconomic operation costs
Gas turbines
Gases
Heat
Indicators
Mathematical models
Pollutants
postcombustion
Power plants
residue
Residues
Smog
Thermodynamics
Turbines
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nowadays, in Mexico, most of the installed electricity generation capacity corresponds to combined cycles, representing 37.1%. For this reason, it is important to maintain these cycles in good operating conditions, with the least environmental impacts. An exergoeconomic and environmental analysis is realized to compare the operation of the combined cycle, with and without postcombustion, with the comparison of exergoeconomic and environmental indicators. With the productive structure of the energy system, the process of formation of the final products and the residues are identified, and an allocation criterion is also used to impute the formation cost of residue to the productive components related to its formation. This criterion considers the irreversibilities generated in each productive component that participates in the formation of a residue. The compositions of pollutant gases emitted are obtained, and their environmental impact is determined. The unit exergoeconomic cost of the power output in the gas turbine is lower in the combined cycle with postcombustion, indicating greater efficiency in the process of obtaining this energy stream, and the environmental indicators of global warming, smog formation and acid rain formation are higher in the combined cycle with postcombustion, these differences being 5.22%, 5.53% and 5.30%, respectively.
ISSN:1099-4300
1099-4300
DOI:10.3390/e24050636