Economic feasibility study of a small scale organic rankine cycle system in waste heat recovery application

dc.contributor.author	Tchanche, BF	en
dc.contributor.author	Quoilin, S	en
dc.contributor.author	Declaye, S	en
dc.contributor.author	Papadakis, G	en
dc.contributor.author	Lemort, V	en
dc.date.accessioned	2014-06-06T06:49:44Z
dc.date.available	2014-06-06T06:49:44Z
dc.date.issued	2010	en
dc.identifier.uri	http://dx.doi.org/10.1115/ESDA2010-24828	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/4759
dc.subject.other	Economic assessments	en
dc.subject.other	Economic criteria	en
dc.subject.other	Economic feasibilities	en
dc.subject.other	Electricity generation	en
dc.subject.other	Evaporator pressure	en
dc.subject.other	Heat energy	en
dc.subject.other	LEC	en
dc.subject.other	Levelized electricity cost	en
dc.subject.other	Mass flow rate	en
dc.subject.other	Net present value	en
dc.subject.other	Organic Rankine cycles	en
dc.subject.other	Payback periods	en
dc.subject.other	Performance prediction	en
dc.subject.other	Power out put	en
dc.subject.other	Recycled energy	en
dc.subject.other	Renewable energies	en
dc.subject.other	Small scale	en
dc.subject.other	Thermal efficiency	en
dc.subject.other	Thermal process	en
dc.subject.other	Thermodynamic model	en
dc.subject.other	Unit prices	en
dc.subject.other	Waste-heat recovery	en
dc.subject.other	Working fluid	en
dc.subject.other	Costs	en
dc.subject.other	Economic analysis	en
dc.subject.other	Electric generators	en
dc.subject.other	Electricity	en
dc.subject.other	Energy conversion	en
dc.subject.other	Exhaust gases	en
dc.subject.other	Investments	en
dc.subject.other	Rankine cycle	en
dc.subject.other	Recovery	en
dc.subject.other	Scroll compressors	en
dc.subject.other	Systems analysis	en
dc.subject.other	Thermodynamic properties	en
dc.subject.other	Waste heat	en
dc.subject.other	Waste heat utilization	en
dc.title	Economic feasibility study of a small scale organic rankine cycle system in waste heat recovery application	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1115/ESDA2010-24828	en
heal.publicationDate	2010	en
heal.abstract	The Organic Rankine Cycle (ORC) appears progressively as a promising solution to recover waste heat energy from thermal processes for electricity generation. A prototype of small-scale ORC has been built and successfully tested at the University of Liège. It uses R-245fa and R-123 as working fluid, and an oil-free scroll compressor adapted to run in expander mode. Thermodynamic model of the system was derived and validated for performance prediction. The validated thermodynamic model is used to optimize the operation of the small ORC in waste heat recovery application (ORC-WHR). For exhaust gases at 180 °C and a mass flow rate of 0.21 kg/s, a maximum net power output of 2 kWe is obtained for an evaporator pressure of 11.84 bar. The cycle thermal efficiency is 8.23 and the recuperation efficiency, 66.32%. Based on the aforementioned conditions, the economic assessment of small scale ORC-WHR was carried out using economic criteria such as levelized electricity cost (LEC), Net present value (NPV) and depreciated payback period (DPP). For a 2kWe ORC-WHR, the specific installed cost is 5775 €/kW with a LEC of 13.27 c€/kWh while for a 50 kWe, the specific installed cost is about 3034 €/kW and the LEC, 7c€/kWh. For an electricity unit price of 20 c€/kWh, the payback period of a 2 kWe system is 6 years while it is 2.5 years for a 50 kWe system. It is concluded from the study that recovering the waste heat by way of ORCs is technically and economically feasible. As recycled energy, waste heat has the same advantages as renewable energy and should benefit from the same legislative conditions (Feed-in-Laws). © 2010 by ASME.	en
heal.journalName	ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010	en
dc.identifier.volume	1	en
dc.identifier.doi	10.1115/ESDA2010-24828	en
dc.identifier.spage	249	en
dc.identifier.epage	256	en