Combined power plant with improved environmental performance

2021 ◽  
pp. 44-47
Author(s):  
E. V. OVCHINNIKOV ◽  
R. S. FEDOTKIN ◽  
S. Yu. UYUTOV ◽  
V. A. KRYUCHKOV
Keyword(s):  
Power Plant ◽  
Environmental Performance

scholarly journals Life Cycle Analysis of a Geothermal Power Plant: Comparison of the Environmental Performance with Other Renewable Energy Systems

2020 ◽  
Vol 12 (7) ◽  
pp. 2786 ◽  
Author(s):  
Riccardo Basosi ◽  
Roberto Bonciani ◽  
Dario Frosali ◽  
Giampaolo Manfrida ◽  
Maria Laura Parisi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Life Cycle ◽  
Power Plant ◽  
Environmental Performance ◽  
Life Cycle Analysis ◽  
Energy Systems ◽  
Renewable Energy Systems ◽  
Geothermal Power Plant ◽  
A Value ◽  
Geothermal Power

A life cycle analysis was performed for the assessment of the environmental performances of three existing Italian power plants of comparable nominal power operating with different sources of renewable energy: Geothermal, solar, and wind. Primary data were used for building the life cycle inventories. The results are characterized by employing a wide portfolio of environmental indicators employing the ReCiPe 2016 and the ILCD 2011 Midpoint+ methods; normalization and weighting are also applied using the ReCiPe 2016 method at the endpoint level. The midpoint results demonstrate a good eco-profile of the geothermal power plant compared to other renewable energy systems and a definite step forward over the performance of the national energy mix. The Eco-Point single score calculation showed that wind energy is the best technology with a value of 0.0012 Eco-points/kWh, a result in line with previously documented life cycle analysis studies. Nevertheless, the geothermal power plant achieved a value of 0.0177 Eco-points/kWh which is close to that calculated for the photovoltaic plant (0.0087 Eco-points/kWh) and much lower than the national energy mix one (0.1240 Eco-points/kWh). Also, a scenario analysis allowed for a critical discussion about potential improvements to the environmental performance of the geothermal power plant.

Environmental Performance Evaluation of Thermal Power Plant with Variable Weight Coefficient and Fuzzy Pattern Recognition

2010 ◽  
Vol 113-116 ◽  
pp. 1222-1225
Author(s):  
Jin Ying Li ◽  
Jin Chao Li ◽  
Man Li Gao
Keyword(s):  
Pattern Recognition ◽  
Performance Evaluation ◽  
Power Plant ◽  
Environmental Performance ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Fuzzy Pattern Recognition ◽  
Variable Weight ◽  
Fuzzy Pattern ◽  
Environmental Performance Evaluation

Environmental performance evaluation is a multi-attribute evaluation problem. The determination of indicators’ weight is the key problem in the multi-attributes evaluation. This paper set up an evaluation model based on multi-attribute variable coefficients and fuzzy pattern recognition aimed at a thermal power plant. The model gives full play to the advantages of the subjective and the objective coefficients and enables itself to alter the coefficients in accordance with the specific indicator values of evaluated objects, hence, bringing the function of performance evaluation into full play.

Assessment of a Power Plant With CO2 Capture Using an Advanced Exergoenvironmental Analysis

2013 ◽  
Vol 136 (2) ◽  
Author(s):  
Fontina Petrakopoulou ◽  
George Tsatsaronis ◽  
Tatiana Morosuk
Keyword(s):  
Power Plant ◽  
Environmental Impact ◽  
Environmental Impacts ◽  
Co2 Capture ◽  
Environmental Performance ◽  
Combined Cycle ◽  
Strong Interactions ◽  
Secondary Importance ◽  
Reference Plant ◽  
Zero Emission

This paper presents an evaluation of the environmental performance of an advanced zero emission plant (AZEP) including CO2 capture. The evaluation is conducted with the aid of an advanced exergoenvironmental analysis. The results are compared with those of a reference combined-cycle power plant without CO2 capture. Advanced exergy-based methods are used to (a) quantify the potential for improving individual components or overall systems, and (b) reveal detailed interactions among components—two features not present in conventional analyses, but very useful, particularly when evaluating complex systems. In an advanced exergoenvironmental analysis, the environmental impacts calculated in a conventional exergoenvironmental analysis are split into avoidable/unavoidable (to evaluate the potential for component improvement) and endogenous/exogenous (to understand the interactions among components) parts. As in the reference plant, the potential for reducing the environmental impact of the AZEP has been found to be limited by the relatively low avoidable environmental impact associated with the thermodynamic inefficiencies of several of its components. However, although the environmental impacts for the majority of the components of the plant are related mainly to internal inefficiencies and component interactions are of secondary importance, there are strong interactions between the reactor and some other components.

scholarly journals Geothermal power plants with improved environmental performance: assessment of the potential for an Italian site

2021 ◽  
Vol 238 ◽  
pp. 01010
Author(s):  
Daniele Fiaschi ◽  
Martina Leveni ◽  
Giampaolo Manfrida ◽  
Barbara Mendecka ◽  
Lorenzo Talluri
Keyword(s):  
Power Plant ◽  
Environmental Performance ◽  
Geothermal Energy ◽  
Power Plants ◽  
Fossil Fuels ◽  
Power Cycles ◽  
Energy And Exergy ◽  
Reservoir Conditions ◽  
Environmental Performance Assessment ◽  
Italian Site

Geothermal energy is a clean resource, which could significantly contribute to the reduction of greenhouse and other gas emissions by replacing fossil fuels for power generation. In many geothermal sites, the resource contains substantial Non-Condensable Gases (NCGs: CO2 and contaminants), whose emissions can be limited to developing power plant schemes suitable for complete resource reinjection. Organic Rankine or other closed-loop cycles are definitely favored in this light. This work investigates a solution for complete NCG reinjection in the liquid-dominated reservoir conditions typical of the Monte Amiata area (Italy), referring to the specific site of Torre Alfina (IT) which presents a specific attractiveness because of its high pressurization. The solution considered avoids flashing the resource and thus presents an appealing environmental performance. The power plant models include energy and exergy balances, as well as exergo-environmental analysis. The overall environmental performance is evaluated by a simplified (preliminary) Life Cycle Analysis (LCA). Different solutions are compared, considering the possibility of sub- or super-critical power cycles.

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