dc.contributor.author |
Ζητούνη – Πετρογιάννη, Αθηνά
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el |
dc.contributor.author |
Zitouni – Petrogianni, Athina
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en |
dc.date.accessioned |
2016-10-03T10:48:10Z |
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dc.date.available |
2016-10-03T10:48:10Z |
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dc.date.issued |
2016-10-03 |
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dc.identifier.uri |
https://dspace.lib.ntua.gr/xmlui/handle/123456789/43731 |
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dc.identifier.uri |
http://dx.doi.org/10.26240/heal.ntua.13143 |
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dc.rights |
Default License |
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dc.subject |
Τριπαραγωγή |
el |
dc.subject |
Ανάκτηση |
en |
dc.subject |
Ακροφύσιο |
el |
dc.subject |
Ψύξη |
el |
dc.subject |
Θερμότητα |
el |
dc.subject |
Trigeneration |
en |
dc.subject |
Heat recovery |
en |
dc.subject |
Cooling ejector |
en |
dc.subject |
Cooling |
en |
dc.subject |
Heating |
en |
dc.title |
Τεχνοοικονομική ανάλυση συστήματος τριπαραγωγής με ανάκτηση απορριπτόμενης θερμότητας |
el |
heal.type |
bachelorThesis |
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heal.classification |
Μετατροπή και αποθήκευση ενέργειας |
el |
heal.classificationURI |
http://data.seab.gr/concepts/df805429f6823d1d7321bcb6d64c21695e3fa92e |
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heal.language |
el |
|
heal.access |
free |
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heal.recordProvider |
ntua |
el |
heal.publicationDate |
2016-07-08 |
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heal.abstract |
Στην παρούσα διπλωματική εργασία μελετήθηκε ένα σύστημα τριπαραγωγής (ηλεκτρική ενέργειας, θερμότητας και ψύξης) με κύκλο ORC. Η πηγή θερμότητας του συστήματος είναι η απορρίπτόμενη θερμότητα από τα καυσαέρια υαλουργίας. Η συμπίεση στο σύστημα ψύξης γίνεται δια δέσμης ρευστού με διάταξη συγκλίνοντος - αποκλίνοντος ακροφυσίου. Τελικά, πραγματοποιήθηκαν οι υπολογισμοί των θερμοδυναμικών ιδιοτήτων του κυκλώματος και πραγματοποιήθηκςε η παραμετρική ανάλυση του. Στη συνέχεια, διαστασιολογήθηκε η μονάδα (εναλλάκτες, διάταξη ακροφυσίου, σωληνώσεις κ.τ.λπ) και επιλέχθηκε ο απαραίτητος εξοπλισμός. Τέλος έγινε η οικονομική αξιολόγηση της εγκατάστασης. |
el |
heal.abstract |
The objective of this project is the analysis of a system, which combines increased energy efficiency and waste heat recovery, so as to reduce air pollution. Specifically, a CCHP (combined cooling, heating and power) system, exploiting the waste heat from a glass industry exhaust as a heat source, is studied. The compression required for the cooling system is carried out through the cooling ejector. More specifically, in the first chapter, an overview of the current energy and environmental crisis is described, including the environmental policies, trends and restrictions. The second chapter deals with the necessity of waste heat recovery and presents basic appl
ications of cogeneration and trigeneration. In addition to, the technology and applications of ORC, as well as the existing cooling technology, are presented. The operation and the characteristics of the cooling ejector, in combination with the ejectors classification and performance parameters are
analyzed . Emphasis is given to refrigerants, criteria of their selection and the restrictions in their use. The third chapter describes the application of the CCHP system in the glass industry, after the brief presentation of the operation and energy requirements of the industry. The fourth chapter deals with the modeling of the CCHP system, including the equations of the thermodynamic and sizing analysis in the interior of the ejector, as well as the relations and energy balance concerning the operation of the system. Input parameters and criteria of their selection are also described. In the fifth chapter, the results from the analysis performed are presented and discussed in detail. In the sixth chapter, the final selection of individual components of the system, such as piping, valves or
heat exchangers, are presented. The seventh chapter deals with an economic analysis and presents the appropriate financial factors in order to determine whether the investment o
f this system is advantageous or not for the glass industry. Finally, the conclusions of this study are summarized, including some ideas for further study. |
en |
heal.advisorName |
Καρέλλας, Σωτήριος |
el |
heal.committeeMemberName |
Καρέλλας, Σωτήριος |
el |
heal.academicPublisher |
Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Μηχανολόγων Μηχανικών. Τομέας Θερμότητας. Εργαστήριο Ατμοκινητήρων και Λεβήτων |
el |
heal.academicPublisherID |
ntua |
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heal.numberOfPages |
179 σ. |
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heal.fullTextAvailability |
true |
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