Tεχνο-οικονομική αξιολόγηση της επίδρασης του μεγέθους ενός αερόψυκτου συμπυκνωτή σε συστήματα Οργανικού κύκλου Rankine

Μπεγνή, Σταυρούλα; Begni, Stavroula

dc.contributor.author	Μπεγνή, Σταυρούλα	el
dc.contributor.author	Begni, Stavroula	en
dc.date.accessioned	2024-06-21T09:22:01Z
dc.date.available	2024-06-21T09:22:01Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/59757
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.27453
dc.rights	Default License
dc.subject	Συμπυκνωτής	el
dc.subject	Αερόψυκτος	el
dc.subject	Οργανικός κύκλος Rankine	el
dc.subject	Τεχνο-οικονομική αξιολόγηση	el
dc.subject	Διαστασιολόγηση	el
dc.subject	Organic Rankine cycle	en
dc.subject	ORC	en
dc.subject	Air-cooled	en
dc.subject	Condenser	en
dc.subject	Techno-economic evaluation	en
dc.title	Tεχνο-οικονομική αξιολόγηση της επίδρασης του μεγέθους ενός αερόψυκτου συμπυκνωτή σε συστήματα Οργανικού κύκλου Rankine	el
dc.title	A techno-economic evaluation of the impact of the sizing of an air-cooled condenser of ORC systems	en
heal.type	bachelorThesis
heal.classification	Βασικές αρχές ψύξης	el
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2024-03-07
heal.abstract	In the present study, a techno-economical assessment of the impact of finned air-cooled condensers in the Organic Rankine systems is presented. The thesis aims to develop a unified sizing model of the air-cooled condenser, integrated into ORC systems, and conduct a parametric investigation in the key thermodynamic and economic parameters of the system. For the sizing model of the air-cooled condenser (ACC), a comprehensive model has been developed in Matlab code where it was combined with an existing ORC model. To conduct the parametric investigation, the analysis focuses on four primary variables: two ORC design variables (the condenser pinch point and air temperature rise in the ACC) and two ACC geometric variables (the number of tube passes and the length of the ACC tubes). Various parameters are investigated by varying these design variables, including ACC heat transfer area, ACC fan power consumption and, ORC net power output. The results of the parametric investigation highlight the trade-off between the ACC heat transfer area, the ACC fan power consumption, and the electrical efficiency of the ORC. Among the parameters examined, the specific cost of the air-cooled condenser was introduced to combine both the thermodynamic and economic factors in the analysis. Through the analysis, it emerged as an optimal design point of PP_ACC=14K,ΔT_αir=3,L_t=10m,and N_tp=6. with a C_(ACC,sp)=1459 USD/kWe, a relatively high cost compared to ORC investment costs	en
heal.advisorName	Μπραϊμάκης, Κωνσταντίνος	el
heal.committeeMemberName	Κορωνάκη, Ειρήνη	el
heal.committeeMemberName	Τζιβανίδης, Χρήστος	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Μηχανολόγων Μηχανικών. Τομέας Θερμότητας	el
heal.academicPublisherID	ntua
heal.numberOfPages	86 σ.	el
heal.fullTextAvailability	false