scholarly journals Nevada Renewable Energy Training Project: Geothermal Power Plant Operators

2014 ◽  
Author(s):  
Nichols Jim
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Geothermal Power Plant ◽  
Training Project ◽  
Geothermal Power

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.

scholarly journals Energy and exergy analysis of dry-steam geothermal power plant: Case study in kamojang geothermal power plant unit 2

2018 ◽  
Vol 197 ◽  
pp. 08018
Author(s):  
Nova Dany Setyawan ◽  
Nugroho Agung Pambudi ◽  
Frandhoni Utomo ◽  
Herman Saputro ◽  
Reza Adiprana ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Power Plants ◽  
Exergy Analysis ◽  
Research Unit ◽  
Geothermal Power Plant ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis ◽  
Geothermal Power ◽  
The Government

The Government of Indonesia is committed to realize a policy of 35,000 Megawatt (MW) of an additional supply of electricity within 5 years (2014-2019). The projection of this capacity is largely supported by fossil fuel power plants and a small portion of renewable energy. One of the renewable energy which currently has great potential in Indonesia is the geothermal. Therefore, improving the capacity of geothermal is needed to support the policy. The Kamojang is one of the largest geothermal power plant in Indonesia with an installed capacity of 235 MW from 5 generating units. The purposes of this research is to calculate the energy and exergy analysis at Kamojang geothermal power plant. To improve the capacity, exergy analysis can be used by employing the thermodynamic method. In this research, unit 2 of Kamojang's plant is employed. The analysis was examined by using the Engineering Equation Solver (EES) code. The results show the first law of efficiency was calculated at 19.03% and the second law of efficiency at 40.31%.

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

2020 ◽  
Author(s):  
Riccardo Basosi ◽  
Roberto Bonciani ◽  
Dario Frosali ◽  
Giampaolo Manfrida ◽  
Maria Laura Parisi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Life Cycle ◽  
Power Plant ◽  
Life Cycle Analysis ◽  
Power Plants ◽  
Energy Systems ◽  
Environmental Indicators ◽  
Renewable Energy Systems ◽  
Geothermal Power Plant ◽  
Geothermal Power

A Life Cycle Analysis was performed considering three existing power plants of comparable size operating with different sources of renewable energy: geothermal, solar and wind. Primary data were used for building the life cycle inventories. The geothermal power plant includes emissions treatment for removal of hydrogen sulfide and mercury. The scenario about the substitution of natural emissions from geothermal energy, with specific reference to the greenhouse effect, is also investigated performing a sensitivity analysis. The results are characterized 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 endpoint level. The results demonstrate a good eco-profile of geothermal power plant with respect to other renewable energy systems and allow for a critical analysis to support potential improvements of the environmental performances.

scholarly journals LCA and Exergo-Environmental Evaluation of a Combined Heat and Power Double-Flash Geothermal Power Plant

2021 ◽  
Vol 13 (4) ◽  
pp. 1935
Author(s):  
Vitantonio Colucci ◽  
Giampaolo Manfrida ◽  
Barbara Mendecka ◽  
Lorenzo Talluri ◽  
Claudio Zuffi
Keyword(s):  
Life Cycle ◽  
Power Plant ◽  
Environmental Analysis ◽  
Combined Heat And Power ◽  
Hot Water ◽  
Environmental Cost ◽  
Published Data ◽  
Geothermal Power Plant ◽  
Geothermal Power ◽  
Double Flash

This study deals with the life cycle assessment (LCA) and an exergo-environmental analysis (EEvA) of the geothermal Power Plant of Hellisheiði (Iceland), a combined heat and power double flash plant, with an installed power of 303.3 MW for electricity and 133 MW for hot water. LCA approach is used to evaluate and analyse the environmental performance at the power plant global level. A more in-depth study is developed, at the power plant components level, through EEvA. The analysis employs existing published data with a realignment of the inventory to the latest data resource and compares the life cycle impacts of three methods (ILCD 2011 Midpoint, ReCiPe 2016 Midpoint-Endpoint, and CML-IA Baseline) for two different scenarios. In scenario 1, any emission abatement system is considered. In scenario 2, re-injection of CO2 and H2S is accounted for. The analysis identifies some major hot spots for the environmental power plant impacts, like acidification, particulate matter formation, ecosystem, and human toxicity, mainly caused by some specific sources. Finally, an exergo-environmental analysis allows indicating the wells as significant contributors of the environmental impact rate associated with the construction, Operation & Maintenance, and end of life stages and the HP condenser as the component with the highest environmental cost rate.

scholarly journals Method for imitating magnesium silicate scale formed at the geothermal power plant in Obama Hot Spring, Japan

Geothermics ◽  
2021 ◽  
Vol 96 ◽  
pp. 102203
Author(s):  
Motoaki Morita ◽  
Ayumu Yamaguchi ◽  
Sota Koyama ◽  
Shinichi Motoda
Keyword(s):  
Power Plant ◽  
Hot Spring ◽  
Magnesium Silicate ◽  
Geothermal Power Plant ◽  
Geothermal Power
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