Thermoecologic Assessment and Life Cycle–Based Environmental Pollution Cost Analysis of Microgas Turbine

AbstractIncreasing global warming concerns are compelling humanity to find alternative fuels to fossil fuels. Ammonia, with its carbon-free structure, can be combusted to produce only water and nitrogen. This study includes exergy analysis–based thermoecologic analysis and life cycle assessment–base...

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Bibliographic Details
Published in:Journal of environmental engineering (New York, N.Y.) N.Y.), 2020-01, Vol.146 (1)
Main Authors: Ayaz, S. Kagan, Altuntas, Onder, Caliskan, Hakan
Format: Article
Language:English
Subjects:
Alternative fuels
Ammonia
Carbon dioxide
Climate change
Combustion
Cost analysis
Ecological effects
Emissions
Environmental assessment
Equivalence
Exergy
Fossil fuels
Fuel technology
Fuels
Global warming
Life cycle analysis
Life cycle assessment
Life cycles
Natural gas
Objective function
Pollution
Technical Papers
Turbines
Water pollution
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Summary:AbstractIncreasing global warming concerns are compelling humanity to find alternative fuels to fossil fuels. Ammonia, with its carbon-free structure, can be combusted to produce only water and nitrogen. This study includes exergy analysis–based thermoecologic analysis and life cycle assessment–based environmental pollution cost analysis of a Turbec T100 microturbine. A Turbec T100 microturbine is normally operated with natural gas combustion and is modeled using commercially available software for (1) natural gas; (2) 10% ammonia and 90% natural gas; and (3) 20% ammonia and 80% natural gas mass fractions. The ecologic objective function and ecological coefficient of performance parameters for natural gas combustion are −174.441 and 0.37336, respectively. The 20% ammonia combustion has the best ecologic objective function and ecological coefficient of performance results, which are −156.818 and 0.3986, respectively. The 20% ammonia combustion also decreases the environmental and life cycle–based environmental payback period. However, 20% ammonia combustion slightly increases the payback period of the system. The 20% ammonia has the lowest CO2-equivalent emission rate due to producing the lowest CO2-equivalent emissions during combustion. Finally, 20% ammonia combustion decreases total and specific environmental pollution costs.
ISSN:0733-9372
1943-7870
DOI:10.1061/(ASCE)EE.1943-7870.0001611