heat and power co-generation, natural gas, conventional power plant, 100MW electrical, UPR, ecoinvent 3.6, Allocation, cut-off

Category:
35:Electricity, gas, steam and air conditioning supply/351:Electric power generation, transmission and distribution/3510:Electric power generation, transmission and distribution
Location:
BA - Bosnia and Herzegovina
Reference year: 1990 - 2019
Description

Reference product: heat, district or industrial, natural gas [MJ]
Location: BA - Bosnia and Herzegovina
This dataset represents the production of high voltage electricity and heat in a conventional steam boiler natural gas power plant with CHP (combined heat and power) in Bosnia Herzegovina in 2012.
For electricity production with natural gas, four different datasets relying to different power plant types exist:
- conventional power plant with / without CHP
- combined cycle power plant with / without CHP
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 approximate share of combined cycle natural gas power plants in Bosnia Herzegovina amounts to ca. {{cc_share}}. {{chp}} combined heat power plants (calculations made with IEA/OECD statistics and own assumptions).
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.
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.
EMISSIONS:
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:
- Emissions of NOx, CO, CO2, SO2, particles, N2O and CH4 are mainly taken from CORINAIR 2001, EPA, and a variety of other data sources
- NOx 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.
- CO is a result of incomplete burning. For economic and technical reasons, plant combustion is optimized and CO emissions are low.
- CO2 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.
- Organic compound emissions are estimated on the basis of EPA 1998.
- Particles are assumed to be smaller than 2.5 micro-m
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.
Sources:
- CORINAIR 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.
- EPA 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/.
- Rentz O., Karl U., Peter H. (2002). Ermittlung und Evaluierung von Emissionsfaktoren für Feuerungsanlagen in Deutschland für die Jahre 1995, 2000 und 2010. Deutsch- Französisches Institut für Umweltforschung, Uni Karsruhe. Endbericht. Im Auftrag des Umweltbundesamtes. Forschungsbericht 299 43 142. Umweltbundesamt. Berlin.
[This dataset is meant to replace the following datasets:]
[This dataset has been generated using the system model "Allocation, cut-off by classification". A system model describes how activity datasets are linked to form product systems. The allocation cut-off system model subdivides multi-product activities by allocation, based on a physical properties, economic, mass or other properties. By-products of waste treatment processes are cut-off, as are all by-products classified as recyclable. Markets in this model include all activities in proportion to their current production volume.
Version 3 of the ecoinvent database offers three system models to choose from. For more information, please visit: https://www.ecoinvent.org/database/system-models-in-ecoinvent-3/system-…)]

Technology

Conventional natural gas power plant of 100MWe. 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.

Process type
Unit
Supported nomenclature
ecoinvent 3.6
LCI modeling approach
Attributional
Multifunctional modeling
PHYSICAL
Format
ECOSPOLD2
Aggregation type
NOT_APPLICABLE
Data provider
ecoinvent Association
Review status
External
Cost
For sale
License

ecoinvent EULA

Contact
support@ecoinvent.org