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Figure 9 Left: Specific cost function of ORC systems; right: electricity prices for various countries Figure 9 (right) indicates the prices for electricity of several countries. Since no green energy incentives or other stimuli are included in these data, they may be used for calculating the revenue or cost savings of the worst case scenario. The clarification of incentives, tax breaks and other stimuli is laborious and not yet accomplished. It will be presented, at least for a couple of countries, at the end of the project. Additional revenues due to incentives etc. will be integrated to the best case scenarios. For the economic analysis additional assumptions will be taken into account: Depreciation Interest rate Operation and Maintenance Insurance Unit Years % p. a. (of invest.) % p. a. (of invest.) % p. a. (of invest.) Best case 10 5 1 0.5 Worst case 10 5 8 1 Source Assumption Assumption [20], [21] [22] Steps 6 and 7 are not yet accomplished and will be finalized until the end of the project. The visualization of the results contain a map of the world with colorized nations that show promising economic cases for ORC systems, several graphs for each country displaying payback period and profitability as a function of ORC module size and reflecting the best-/average- and worst-case scenario. References [1] Ormat Technologies, Website: http://www.ormat.com/global-project [2] Turboden, Website: http://www.turboden.eu/en/references/references.php [3] GMK Gesellschaft für Motoren und Kraftanlagen mbH, Website: http://www.gmk.info/GMK_Referenzen.125.html? [4] Adoratec, Website: http://www.adoratec.com/referenznav.html [5] United Nations, 2008, International Standard Classification of All Economic Activities [6] Lawrence Livermore National Laboratory, 2007 Estimated International Energy Flows [7] Chart built using Enerdata online energy database [8] Lagler, M., 2011, Internal assessment of heat potentials at Bühler AG [9] Mago, P.J., Chamra, L.M. and Somayajl, C., 2007, Performance analysis of different working fluids for use in organic rankine cycles, Journal of Power and Energy, pp. 221-255 [10] Crook, A.W., 1994, Profiting from Low-Grade Waste Heat, The Institution of Electrical Engineers, London [11] Cole-Parmer, Material Safety Data Sheet, Octamethyltrisiloxane, 98%, Website visited 2011-07-27, http://www.coleparmer.com/catalog/Msds/95557.htm [12] Quoilin, S., Declaye, S., and Lemort, V., 2010, Expansion Machine and Fluid Selection for the Organic Rankine Cycle, HEFAT 2010 [13] Depta, D., 2009, Präsentation „Effizienzsteigerung bei der Biogasnutzung – Nutzung der ORC- Technologie bei Blockheizkraftwerken, Umwelttechnik & Ingenieure GmbH [14] Obernberger, I., Biedermann, F.,Thonhofer, P.,Gaia, M., Bini, R., 2009, Neue Klein-ORC-Technologie (200kWel) für dezentrale Biomasse-KWK-AnlagenPDF Image | Application of Organic Rankine Cycles (ORC)
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