| 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 |
2014-06-06T06:49:45Z |
|
| dc.date.available |
2014-06-06T06:49:45Z |
|
| dc.date.issued |
2010 |
en |
| dc.identifier.uri |
http://62.217.125.90/xmlui/handle/123456789/4760 |
|
| dc.relation.uri |
http://www.scopus.com/inward/record.url?eid=2-s2.0-84896142798&partnerID=40&md5=7580081c2341057db486dad48bcbdebf |
en |
| dc.subject |
Economic optimization |
en |
| dc.subject |
Organic rankine cycle |
en |
| dc.subject |
Waste heat recovery |
en |
| dc.subject |
Working fluid |
en |
| dc.subject.other |
Cost effectiveness |
en |
| dc.subject.other |
Environmental impact |
en |
| dc.subject.other |
Evaporators |
en |
| dc.subject.other |
Fluids |
en |
| dc.subject.other |
Investments |
en |
| dc.subject.other |
Optimization |
en |
| dc.subject.other |
Paraffins |
en |
| dc.subject.other |
Rankine cycle |
en |
| dc.subject.other |
Waste heat utilization |
en |
| dc.subject.other |
Economic optimization |
en |
| dc.subject.other |
Evaporator pressure |
en |
| dc.subject.other |
Objective functions |
en |
| dc.subject.other |
Organic Rankine cycles |
en |
| dc.subject.other |
Specific investment |
en |
| dc.subject.other |
Technical performance |
en |
| dc.subject.other |
Thermodynamic systems |
en |
| dc.subject.other |
Working fluid |
en |
| dc.subject.other |
Costs |
en |
| dc.title |
Economic optimization of small scale organic rankine cycles |
en |
| heal.type |
conferenceItem |
en |
| heal.publicationDate |
2010 |
en |
| heal.abstract |
The present paper focuses on the economic optimization of a small scale ORC in waste heat recovery application with specific investment cost as objective function. First, a pre-design model of the ORC was built and simulations run with different working fluids to evaluate their technical performance. In a second step, components and system cost models were built and simulations carried out to evaluate the cost effectiveness of systems associated with different fluids. The working fluids considered are R245fa, R123, R113, n-Pentane and n-Butane. Results indicate that for the same fluid, the point of high performance and that of cost-effectiveness do not match. The operating point for maximum power doesn't correspond to that of the minimum specific investment cost. For n-Pentane, the maximum net power of 1.98 kW is obtained for an evaporator pressure of 5.14 bar and the specific investment cost is 5450 €/kW. For this same fluid, a minimum specific investment cost of 4440 €/kW is obtained for an evaporator pressure of 8.5 bar and the corresponding power output is 1.745 kW. The mismatch aforementioned is due to the thermodynamic properties such as liquid/vapour densities, which significantly influence system performance and components sizes. Seeking for profitable environmental solutions, economic optimization as a necessary step in the optimization of any thermodynamic system is highly advised. |
en |
| heal.publisher |
Aabo Akademi University |
en |
| heal.journalName |
Proceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010 |
en |
| dc.identifier.volume |
3 |
en |
| dc.identifier.spage |
379 |
en |
| dc.identifier.epage |
388 |
en |