| Key Data Set Information | |
| Location | CL |
| Reference year | 2000 |
| Name |
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| Classification |
Class name
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Hierarchy level
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| General comment on data set | ecoQuery: https://ecoquery.ecoinvent.org/3.10/cutoff/dataset/755/documentation This dataset represents the production of high voltage electricity in a combined cycle natural gas power plant without CHP (combined heat and power) in Chile in 2012.;['text', 'In a combined cycle power plant, a gas turbine is followed by a steam turbine. The dataset refers to a combined cycle power plant of 400MWe class with a gas turbine 260MWe and a steam turbine 140MWe.'];['text', 'For electricity production with natural gas, four different datasets relying to different power plant types exist:'];['text', ' - conventional power plant with / without CHP'];['text', ' - combined cycle power plant with / without CHP'];['text', 'At the moment, these datasets differ in nothing but the efficiency. High voltage electricity (at the busbar) is the reference product, whereupon heat is a by-product in CHP plants. Out of all fossile fuels, natural gas holds worldwide the highest share of CHP plants besides peat. Furthermore, natural gas power plants are today often designed with combined cycles. The advantages of a combined cycle power plant are for example: '];['text', ' - a higher efficiency (approximately between 50-60% compared to ca. 33% for a conventional power plant)'];['text', ' - high operating flexibility'];['text', ' - lower emissions due to higher efficiency'];['text', ' - lower cooling water need. '];['text', 'The approximate share of combined cycle natural gas power plants in Chile amounts to ca. {{cc_share}}. {{chp}} combined heat power plants (calculations made with IEA/OECD statistics and own assumptions). '];['text', 'The efficiency calculations are based on IEA/OECD statistics (fuel inputs, electricity produced) and some own calculation assumptions. . Reducing factors such as contaminations of important plant parts, cooling conditions or part load have been taken into account. Even if efficiencies vary with different surrounding temperatures, a medium efficiency is assumed for all countries. Temperature adjustments would be related to high uncertainties.'];['text', 'Water is used for wet cooling and as feed water in the steam circuit. In this dataset, 100% wet cooling and no once-through cooling is assumed. '];['text', 'EMISSIONS:'];['text', 'Different sources served as basis for assumption of average emissions. Where possible, the most recent sources were taken into account, whereas older sources were taken in order to determine the remaining data gaps. The emissions have been fixed for the former UCTE region* and have been overtaken as such for all countries without value adaptation (adaptation of the uncertainty). See ecoinvent report 'Erdgas' given as main source for details (Tab. 11.15). In the following a short overview:'];['text', ' - Emissions of NOx, CO, CO2, SO2, particles, N2O and CH4 are mainly taken from CORINAIR 2001, EPA, and a variety of other data sources '];['text', '-\tNOx emissions are a major challenge in natural gas power plants. With rising temperature, emissions also rise; band widths of NOx emissions in literature are correspondingly large. There are several methods to diminish these emissions.'];['text', '-\tCO is a result of uncomplete burning. For economic and technical reasons, plant combustion is optimized and CO emissions are low. '];['text', '-\tCO2 and SO2 emissions are dependent on the composition of the used fuel. Due to the low sulfur content of the used natural gas, no desulfurization has to take place.'];['text', '-\tOrganic compound emissions are estimated on the basis of EPA 1998. '];['text', '-\tParticles are assumed to be smaller than 2.5 micro-m'];['text', 'former UCTE: Union for the Coordination of the Transmission of Electricity, since 2009 replaced by ENTSO-E European Network of Transmission System Operators for Electricity.'];['text', 'Sources:'];['text', '-\tCORINAIR 2001. EMEP/CORINAIR 2001: Joint EMEP/CORINAIR Atmospheric Emission Inventory Guidebook, Third Edition. Copenhagen: European Environment Agency, 2001. http://reports.eea.eu.int/technical_report_2001_3/en.'];['text', '-\tEPA 1998. US Environmental Protection Agency (1998). Compilation of Air Pollutant Emission Factors, AP-42, Fifth Edition, Volume I: Chapter 1: External Combustion Sources, Natural Gas Combustion - Final Section - Supplement D , July 1998. CHIEF (Clearinghouse for Inventories and Emission Factors). Research Triangle Park, North Carolina. http://www.epa.gov/ttn/chief/ap42/.'];['text', '-\tRentz O., Karl U., Peter H. (2002). Ermittlung und Evaluierung von Emissionsfaktoren f\xfcr Feuerungsanlagen in Deutschland f\xfcr die Jahre 1995, 2000 und 2010. Deutsch- Franz\xf6sisches Institut f\xfcr Umweltforschung, Uni Karsruhe. Endbericht. Im Auftrag des Umweltbundesamtes. Forschungsbericht 299 43 142. Umweltbundesamt. Berlin.'] From the constructed combined cycle natural gas power plant ready to produce electricity. From reception of natural gas and operating materials at power plant/factory gate This activity ends with 1kWh of high voltage electricity produced at the power plant and arrived at the busbar. This dataset includes: - all operation and maintenance activities and materials of the power plants. - Cooling: It is a assumed that all plants use wet cooling with a cooling tower. No cooling tower is included in this dataset (will be implemented in future versions) - decarbonised water use for reduction of NOx emissions This dataset doesn't include - raw materials extraction, decommissioning and waste treatment as these activities are already included in the infrastructure datasets. - transformation of the electricity produced. |
| Copyright | Yes |
| Quantitative reference | |
| Reference flow(s) |
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| Time representativeness | |
| Data set valid until | 2023 |
| Time representativeness description | The Annual Production Volume is valid for the year 2012. |
| Technological representativeness | |
| Technology description including background system | Combined cycle power plant of 400MWe class with a gas turbine 265MWe and a steam turbine 140MWe. The plant is used for middle load with 5000 hours of operation at full capacity per year. The plant is assumed to operate 180000 hours during its lifetime. |
| LCI method and allocation | |
| Type of data set | Unit process, black box |
| LCI Method Principle | Other |
| Data sources, treatment and representativeness | |
| Data treatment and extrapolations principles | Data have been taken over from a dataset valid for the time period 2000-2005, relying on sources of the 90th. No changes were made for the 2008 dataset, but uncertainty was adjusted. All exchange data were extrapolated from datasets of the following 11 countries: AT, BE, DE, ES, FR, GB, IT, JP, LU, NL, US. The data of those countries basically rely on data of the former UCTE (see general comment). The efficiency is based on IEA/OECD statistics and calculated with own assumptions. The cooling and feed water use has been taken over from datasets for electricity production with hard coal or lignite. |
| Data source(s) used for this data set | |
| Sampling procedure | Literature |
| Completeness | |
| Completeness of product model | No statement |
| Data generator | |
| Data set generator / modeller | |
| Data entry by | |
| Time stamp (last saved) | 2024-07-12T18:43:19.795000-04:00 |
| Data set format(s) | |
| Data entry by | |
| Publication and ownership | |
| UUID | 5ef63d36-ee4a-411f-8510-9ab8e88aa730 |
| Date of last revision | 2024-07-12T17:13:58.803000-04:00 |
| Data set version | 00.00.005 |
| Unchanged re-publication of | |
| Copyright | Yes |
Inputs
| Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
|---|---|---|---|---|---|---|---|---|---|
| Product flow | F:Construction / 42:Civil engineering / 422:Construction of utility projects / 4220:Construction of utility projects | GLO | 9.23E-12 Item(s) | 9.23E-12 Item(s) | |||||
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| Product flow | D:Electricity, gas, steam and air conditioning supply / 35:Electricity, gas, steam and air conditioning supply / 352:Manufacture of gas; distribution of gaseous fuels through mains / 3520:Manufacture of gas; distribution of gaseous fuels through mains | RoW | 0.135 m3 | 0.135 m3 | |||||
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| Product flow | E:Water supply; sewerage, waste management and remediation activities / 36:Water collection, treatment and supply / 360:Water collection, treatment and supply / 3600:Water collection, treatment and supply | RoW | 0.0291 kg | 0.0291 kg | |||||
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| Product flow | E:Water supply; sewerage, waste management and remediation activities / 36:Water collection, treatment and supply / 360:Water collection, treatment and supply / 3600:Water collection, treatment and supply | RoW | 0.97 kg | 0.97 kg | |||||
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| Elementary flow | Resources / Resources from water / Renewable material resources from water | CL | 0.0287 m3 | 0.0287 m3 | |||||
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Outputs
| Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
|---|---|---|---|---|---|---|---|---|---|
| Product flow | D:Electricity, gas, steam and air conditioning supply / 35:Electricity, gas, steam and air conditioning supply / 351:Electric power generation, transmission and distribution / 3510:Electric power generation, transmission and distribution | CL | 3.6 MJ | 3.6 MJ | |||||
| Waste flow | E:Water supply; sewerage, waste management and remediation activities / 38:Waste collection, treatment and disposal activities; materials recovery / 382:Waste treatment and disposal / 3821:Treatment and disposal of non-hazardous waste | RoW | 4.85E-6 kg | 4.85E-6 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 3.85E-12 kg | 3.85E-12 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 3.88E-9 kg | 3.88E-9 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 5.87E-7 kg | 5.87E-7 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 4.38E-9 kg | 4.38E-9 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 2.57E-12 kg | 2.57E-12 kg | |||||
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| Elementary flow | Resources / Resources from ground / Non-renewable element resources from ground | CL | 1.2E-11 kg | 1.2E-11 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 4.49E-6 kg | 4.49E-6 kg | |||||
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| Elementary flow | Resources / Resources from ground / Non-renewable element resources from ground | CL | 1.1E-9 kg | 1.1E-9 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 0.259 kg | 0.259 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 1.07E-5 kg | 1.07E-5 kg | |||||
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| Elementary flow | Resources / Resources from ground / Non-renewable element resources from ground | CL | 1.39E-9 kg | 1.39E-9 kg | |||||
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| Elementary flow | Resources / Resources from ground / Non-renewable element resources from ground | CL | 8.34E-11 kg | 8.34E-11 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 4.74E-6 kg | 4.74E-6 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 1.41E-16 kg | 1.41E-16 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 6.65E-6 kg | 6.65E-6 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 1.57E-7 kg | 1.57E-7 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 3.85E-6 kg | 3.85E-6 kg | |||||
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| Elementary flow | Resources / Resources from ground / Non-renewable element resources from ground | CL | 5.0E-10 kg | 5.0E-10 kg | |||||
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| Elementary flow | Resources / Resources from ground / Non-renewable element resources from ground | CL | 3.79E-10 kg | 3.79E-10 kg | |||||
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| Elementary flow | Resources / Resources from ground / Non-renewable element resources from ground | CL | 3.34E-10 kg | 3.34E-10 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 4.71E-6 kg | 4.71E-6 kg | |||||
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| Elementary flow | Resources / Resources from ground / Non-renewable element resources from ground | CL | 2.09E-9 kg | 2.09E-9 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 1.24E-4 kg | 1.24E-4 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 3.88E-8 kg | 3.88E-8 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 5.58E-6 kg | 5.58E-6 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 3.42E-6 kg | 3.42E-6 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 7.76E-8 kg | 7.76E-8 kg | |||||
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| Elementary flow | Resources / Resources from ground / Non-renewable element resources from ground | CL | 2.38E-11 kg | 2.38E-11 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 2.78E-6 kg | 2.78E-6 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to non-urban air or from high stacks | CL | 7.28E-9 kg | 7.28E-9 kg | |||||
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| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | CL | 4.76E-4 m3 | 4.76E-4 m3 | |||||
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| Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | CL | 0.0292 m3 | 0.0292 m3 | |||||
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