Application of an electrical ignition system for cold start up using hard coal

Papandreou, Alexios-Vasileios; Παπανδρέου, Αλέξιος-Βασίλειος

dc.contributor.author	Papandreou, Alexios-Vasileios	en
dc.contributor.author	Παπανδρέου, Αλέξιος-Βασίλειος	el
dc.date.accessioned	2023-01-23T10:49:35Z
dc.date.available	2023-01-23T10:49:35Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/56824
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.24522
dc.rights	Default License
dc.subject	Καύση	el
dc.subject	Άνθρακας	el
dc.subject	Πλάσμα	el
dc.subject	Λιγνίτης	el
dc.subject	Κρύες Συνθήκες	el
dc.subject	Ignition	en
dc.subject	Hard Coal	en
dc.subject	Plasma	en
dc.subject	Cold Startup	en
dc.subject	Combustion	en
dc.title	Application of an electrical ignition system for cold start up using hard coal	en
heal.type	bachelorThesis
heal.classification	Ignition	en
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2019-04-01
heal.abstract	Due to the need of power plants to increase their flexibility, a new start-up technique using a plasma torch is being developed and studied. The objective of this study experimentally the applicability of the plasma burner system to achieve ignition of hard coals under cold furnace conditions and the ability of sustaining said ignition after the plasma burner has been turned off. Multiple operational parameters such as Thermal Loading, Primary air flow, air-ratio, position of the plasma burner, different nozzles were studied on two different types of Hard coals with distinct physical and chemical property differences. Tests were conducted on a 500kWth in-house facility with a 3 kW DC plasma torch. The tests are compared and evalu- ated with the criteria of ignition grades that were used for this study. Results and findings on the two hard coals showed some optimistic results for the purpose of this study but only under specific conditions set by the aforementioned parameters.	en
heal.advisorName	Καρέλλας, Σωτήριος	el
heal.committeeMemberName	Schnell, Uwe	en
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Μηχανολόγων Μηχανικών. Τομέας Θερμότητας	el
heal.academicPublisherID	ntua
heal.numberOfPages	57 σ.	el
heal.fullTextAvailability	false