Alexis de Laborderie
Transånergie, Ecully, France
Clément Puech
Transånergie, Ecully, France
Nadine Adra
Transånergie, Ecully, France
Isabelle Blanc
MINES ParisTech, Sophia Antipolis, France
Didier Beloin-Saint-Pierre
MINES ParisTech, Sophia Antipolis, France
Pierryves Padey
MINES ParisTech, Sophia Antipolis, France
Jérôme Payet
Cycleco, Ambårieu, France
Marion Sie
Cycleco, Ambårieu, France
Philippe Jacquin
PHK Consultants, Ecully, France
Ladda ner artikelhttp://dx.doi.org/10.3384/ecp110573678Ingår i: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden
Linköping Electronic Conference Proceedings 57:2, s. 3678-3685
Publicerad: 2011-11-03
ISBN: 978-91-7393-070-3
ISSN: 1650-3686 (tryckt), 1650-3740 (online)
Solar thermal systems are an ecological way of providing domestic hot water. They are experiencing a rapid growth since the beginning of the last decade. This study characterizes the environmental performances of such installations with a life-cycle approach. The methodology is based on the application of the international standards of Life Cycle Assessment. Two types of systems are presented. Firstly a temperate-climate system; with solar thermal collectors and a backup energy as heat sources. Secondly; a tropical system; with thermosiphonic solar thermal system and no backup energy. For temperate-climate systems; two alternatives are presented: the first one with gas backup energy; and the second one with electric backup energy. These two scenarios are compared to two conventional scenarios providing the same service; but without solar thermal systems. Life cycle inventories are based on manufacturer data combined with additional calculations and assumptions. The fabrication of the components for temperate-climate systems has a minor influence on overall impacts. The environmental impacts are mostly explained by the additional energy consumed and therefore depend on the type of energy backup that is used. The study shows that the energy pay-back time of solar systems is lower than 2 years considering gas or electric energy when compared to 100% gas or electric systems.
[1] Eurobserv’er; Solar thermal Barometer; SYSTÈMES SOLAIRES - le journal des énergies renouvelables N° 191; June 2009
[2] Solar Thermal Markets in Europe Trends and Market Statistics 2009; ESTIF; 2010
[3] Soteris Kalogirou; Thermal performance; economic and environmental life cycle analysis of thermosiphon solar water heaters; Solar Energy 83; 2009; pp. 39–48
doi: 10.1016/j.solener.2008.06.005.
[4] Fulvio Ardente; Life cycle assessment of a solar thermal collector: sensitivity analysis; energy and environmental balances; Renewable Energy 30; 2005; pp. 109–130
doi: 10.1016/j.renene.2004.05.006.
[5] Crawford; R. H.; Net energy analysis of solar and conventional domestic hot water systems in Melbourne; Australia; Solar Energy 76; 2004; pp. 159-163
doi: 10.1016/j.solener.2003.07.030.
[6] Soteris Kalogirou; Environmental benefits of domestic solar energy systems; Energy Conversion and Management 45; 2004; pp. 3075-3092
doi: 10.1016/j.enconman.2003.12.019.
[7] International Standard Organization. ISO 14040. Environmental management – Life Cycle Assessment – principles and framework. 2006
[8] International Standard Organization. ISO 14044. Environmental management – Life Cycle Assessment – requirements and guidelines. 2006.
[9] Swiss Center for Life Cycle Inventories. The life cycle inventory data version 2.0. http://www.ecoinvent.ch. 2008.
[10] O. Jolliet; M. Margni; R. Charles; S. Humbert; J. Payet; G. Rebitzer; R. Rosenbaum. Impact 2002+: A new life cycle impact assessment methodology; International Journal of Life Cycle Assessment. 2003. Volume: 8; Issue: 6; Pages: 324-330