Publication
Heuristic algorithm for the piecewise linear segmentation of multiple time-series for solar thermal systems inverse modelling
| dc.contributor.author | Lopes, Vitor V. | |
| dc.contributor.author | Ferro, Filipa | |
| dc.contributor.author | Carvalho, Maria João | |
| dc.contributor.author | Novais, Augusto Q. | |
| dc.date.accessioned | 2013-03-22T14:17:19Z | |
| dc.date.available | 2013-03-22T14:17:19Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | This paper presents a novel algorithm for the piecewise linear segmentation of multivariate time-series and proposes its application to the analysis of hot water thermal solar systems (TSS). The ISO 9459-5:2007 norm describes a non-intrusive dynamic test for the performance assessment of TSS. This allows to characterize the system heat losses and the thermal stratification properties, as well as to predict its long-term performance. The application of this norm requires an inverse modeling approach where the parameters of a simplified plug flow storage model, based on simulation runs, are determined through an optimization procedure aiming at the adjustment of the predicted results to those obtained by a predefined experimental test sequence (3-5 days). This paper proposes a new method to decrease the computation time required for the model simulation, which is based on the segmentation of the multivariate time-series into a piecewise linear approximation, where the number of segments is critically selected. An illustrative example is presented consisting in the simulation of a real 3-day experimental dataset with 26873 points and a 15 s sampling rate. | por |
| dc.identifier.citation | Lopes, V.V.; Ferro, F.; Carvalho, M.J.; Novais, A.Q. - Heuristic algorithm for the piecewise linear segmentation of multiple time-series for solar thermal systems inverse modelling. In: 22nd European Symposium on Computer Aided Process Engineering, London, 17-20 June, 2012, 5p. | por |
| dc.identifier.uri | http://hdl.handle.net/10400.9/1704 | |
| dc.language.iso | eng | por |
| dc.subject | Piecewise linear approximation | por |
| dc.subject | Thermal solar systems | por |
| dc.subject | Partial differential equation | por |
| dc.subject | Inverse modeling | por |
| dc.title | Heuristic algorithm for the piecewise linear segmentation of multiple time-series for solar thermal systems inverse modelling | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | London | por |
| oaire.citation.title | 22nd European Symposium on Computer Aided Process Engineering | por |
| person.familyName | Carvalho | |
| person.givenName | Maria João | |
| person.identifier.ciencia-id | AB12-0E87-100E | |
| person.identifier.orcid | 0000-0001-8763-4847 | |
| person.identifier.rid | L-4158-2014 | |
| person.identifier.scopus-author-id | 7201413995 | |
| rcaap.rights | openAccess | por |
| rcaap.type | conferenceObject | por |
| relation.isAuthorOfPublication | 612ce7fe-326e-4d96-be54-3b1aa9e64e71 | |
| relation.isAuthorOfPublication.latestForDiscovery | 612ce7fe-326e-4d96-be54-3b1aa9e64e71 |