| Titre : | Combined branch and bound method and exergy analysis for energy system design (2013) |
| Auteurs : | Benny Hartono, Auteur ; Peter Heidebrecht, Auteur ; Kai Sundmacher, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 51 N° 44, Novembre 2012) |
| Article en page(s) : | pp. 14428-14437 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | System design Exergy analysis Branch and bound method |
| Résumé : | This contribution proposes a new design methodology in energy system design, which integrates the branch and bound algorithm with exergy analysis (BBEx). In a search tree representation of the design problem, it applies upper and lower bounds to discharge ineffective branches at an early stage. At intermediate nodes, instead of solving the relaxed NLP subproblem, the BBEx algorithm calculates the residual exergy, which is a valid lower bound to an energetic objective function. This approach provides a lower bound at lower computational cost than the traditional branch and bound (BB) method and satisfies the constraint of system wide thermal autonomy. The numerical performance of the proposed method is compared with the classical BB and the total enumeration on a design problem of a wood-based fuel cell power plant. The results suggest that the proposed algorithm is a promising and efficient method for solving process synthesis problems in energy system design. |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=26620358 |
