Utjecaj regenerativnog zagrijavanja na pogonsku fleksibilnost

Budić, Roko (2018) Utjecaj regenerativnog zagrijavanja na pogonsku fleksibilnost. = Impact of regenerative preheating on operating flexibility. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Lončar, Dražen.

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Abstract (Croatian)

Sve veća proizvodnja električne energije iz obnovljivih izvora mijenja način rada konvencionalnih termoelektrana. Njihova uloga postaje, pokrivanje razlika između potražnje i proizvodnje električne energije iz obnovljivih izvora Kako bi se pokrila razlika između potražnje i proizvodnje električne energije od povlaštenih proizvođača, potreba za povećanom fleksibilnosti termoelektrane dolazi do izražaja. Jedan od načina kratkotrajnog povećanja snage je obustava nereguliranih oduzimanja pare prema visokotlačnim zagrijačima napojne vode. Upravo taj slučaj je detaljnije opisan u ovom radu te je provjeren utjecaj obustave i ponovne uspostave oduzimanja na naprezanja u ulaznom kolektoru napojne vode. Simulacije su vršene u programskom paketu Matlab.

Abstract

Rise in electricity production from renewable sources changes the operation of conventional termal plants. Their role is to cover the difference between electricity demand and electricity generation from renewable sources. In order to cover the difference between electricity demand and electricity generation from eligible producers, the need for increased flexibility of the thermal power plant comes to the fore. One of the ways of a short-term increase in power is a short-time stoppage of the turbine steam extraction for preheating the feed water in highpressure feed water heaters. This case is described in more detail in this paper, as well as the effects of the suspension, and re-establishment of the steam extraction on the thermal stresses of the economiser inlet header have been taken into account. The simulations were carried out in the Matlab program package.

Item Type:	Thesis (Master's thesis (Bologna))
Uncontrolled Keywords:	fleksibilnost elektrane; obustava nereguliranih oduzimanja; visokotlačni zagrijač; temperaturna naprezanja kolektora; Matlab
Keywords (Croatian):	flexibility of thermal powerplant; turbine steam extraction stoppage; highpressure feed water heaters; thermal stress; economiser inlet header; Matlab
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair
Date Deposited:	26 Jan 2018 09:48
Last Modified:	29 Jan 2018 12:16
URI:	http://repozitorij.fsb.hr/id/eprint/8284

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