THERMAL SCIENCE

International Scientific Journal

ENERGY, EXERGY AND ENVIRONMENTAL QUALITY OF HARD COAL AND NATURAL GAS IN WHOLE LIFE CYCLE CONCERNING HOME HEATING

ABSTRACT
The use of coal is suspected to have high environmental impact. Natural gas is treated as more environmentally friendly with high methane content and lower emission factors. In order to calculate the environmental impact in the whole life cycle associated with combustion of coal and natural gas all stages from “cradle to grave” should be taken into account. In particular, the transportation stage, especially in the case of life cycle analysis of gas, seems to be crucial. The distance of transmission of gas from gas fields, for instance located in Siberia, could be mainly associated with high diffuse emission of methane. The comparison of environmental impact assessment of coal and natural gas utilization for heating purposes is presented in the paper. The additional factor taken into account is localisation of boilers. In the analysis the coal is sombusted in combined heat and power plants equipped with flue gas treatment units is that released emissions are relatively remote from an urban area. In contrast, the natural gas is burned in small domestic installations with no additional FGT systems. The results of the analysis are given in 6 major impact categories. Moreover, the results of the life cycle analysis were brought into comprehensive thermo-ecological cost index, which is a cumulated exergy consumption of non-renewable resources. The results presented in the paper refer to the contemporary problem of the choice of energy sources in the context of its overall environmental efficiency.
KEYWORDS
PAPER SUBMITTED: 2016-02-24
PAPER REVISED: 2016-04-24
PAPER ACCEPTED: 2016-04-25
PUBLISHED ONLINE: 2016-07-12
DOI REFERENCE: 10.2298/TSCI160224158P
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE 4, PAGES [1147 - 1159]
REFERENCES
  1. ***, EUROSTAT, Primary Production of Energy by Resource
  2. ***, BP Statistical Review of World Energy, June 2015, Coal Section, www.bp.com/content/dam/ bp/pdf/energy-economics/statistical-review-2015/bp-statistical-review-of-world-energy-2015-coal-section.pdf
  3. Riva, A., et al., Natural Gas and the Environmental Results of Life Cycle Assessment, Energy, 31 (2006), 1, pp. 138-148
  4. Dinca, C., et al., A Life Cycle Impact of Natural Gas Used in the Energy Sector in Romania, Journal of Cleaner Production, 15 (2007), 15, pp. 1451-1462
  5. ***, BP Statistical Review of World Energy June 2015, Natural Gas Section, www.bp.com/ content/dam/bp/pdf/energy-economics/statistical-review-2015/bp-statistical-review-of-world-energy-2015-natural-gas-section.pdf
  6. ***, Nord Stream ESPOO Report, the New Gas Supply Route for Europe, Chapter 04, Description of Project, 2009, www.nord-stream.com/download/document/74/?language=en
  7. ***, Gazprom, Information Publication, Yamal Megaproject, www.gazprom.com/f/posts/25/ 697739/book_my_eng_1.pdf
  8. Schreiber, A., et al., Environmental Assessment of German Electricity Generation from Coal-fired Power Plants With Amine-based Carbon Capture, The International Journal of Life Cycle Assessment, 14 (2009), pp. 547-559
  9. Pikoń, K., Environmental Impact of Waste Management System ‒ System Location Issues, World Envi-ronmental and Water Resources Congress, EWRI 2011, Palm Springs, California, USA, 22-26 May 2011, by America Society of Civil Engineers ASCE, Conference Paper
  10. Pikoń, K., Model wielokryterialnej analizy środowiskowej złożonych układów technologicznych, monografia (Model of Multicriteria Environmental Evaluation of Complex Technological Systems - in Polish), Wydawnictwo Politechniki Śląskiej, Gliwice, 2011
  11. Szargut, J., Termodynamika techniczna (Themodynamics - in Polish), PWN, Warszawa 1991, Wyd. III poprawione i uzupełnione, Wydawnictwo Politechniki Śląskiej, Gliwice, 2000
  12. Stanek, W., et al., Thermo-ecological Cost of Hard Coal with Inclusion of the Whole Life Cycle Chain, Proceedings of SDEWES Conference, Venice-Istanbul, September 2014.
  13. Stanek, W., Białecki, R., Can Natural Gas Warm the Climate More Than Coal? Fuel, 136 (2014), pp. 341-348 DOI No. 10.1016/j.fuel.2014.07.075

© 2017 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence