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master's thesis
Energetska i eksergetska analiza rada termoelektrane
2020. urn:nbn:hr:190:847229
Fumić, Sara
University of Rijeka
Faculty of Engineering
Department of Thermodynamics and Energy Engineering
Section of Process Energy Engineering and Environment Protection

Cite this document

Fumić, S. (2020). Energetska i eksergetska analiza rada termoelektrane (Master's thesis). Rijeka: University of Rijeka, Faculty of Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:190:847229

Fumić, Sara. "Energetska i eksergetska analiza rada termoelektrane." Master's thesis, University of Rijeka, Faculty of Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:190:847229

Fumić, Sara. "Energetska i eksergetska analiza rada termoelektrane." Master's thesis, University of Rijeka, Faculty of Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:190:847229

Fumić, S. (2020). 'Energetska i eksergetska analiza rada termoelektrane', Master's thesis, University of Rijeka, Faculty of Engineering, accessed 20 December 2024, https://urn.nsk.hr/urn:nbn:hr:190:847229

Fumić S. Energetska i eksergetska analiza rada termoelektrane [Master's thesis]. Rijeka: University of Rijeka, Faculty of Engineering; 2020 [cited 2024 December 20] Available at: https://urn.nsk.hr/urn:nbn:hr:190:847229

S. Fumić, "Energetska i eksergetska analiza rada termoelektrane", Master's thesis, University of Rijeka, Faculty of Engineering, Rijeka, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:190:847229

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Metadata
TitleEnergetska i eksergetska analiza rada termoelektrane
Title (english)Energy and exergy analysis of a steam power plant
AuthorSara Fumić
MentorVladimir Glažar (mentor)
Committee memberNeven Lovrin (predsjednik povjerenstva)
Committee memberOzren Bukovac (član povjerenstva)
Committee memberStefan Ivić (član povjerenstva)
Committee memberVladimir Glažar (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Engineering
(Department of Thermodynamics and Energy Engineering)
(Section of Process Energy Engineering and Environment Protection)
Rijeka
Defense date and country2020-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Cilj rada bio je modelirati termoelektranu nazivne električne snage 350 MWel za različita opterećenja (25%-100%) te uvidjeti gdje i zašto dolazi do gubitaka u procesu pretvorbe energije različitih oblika u električnu energiju. Analizom energetskih i eksergetskih gubitaka te pronalaženjem dijelova postrojenja u kojima su oni najveći, istražila se ukupna iskoristivost postrojenja. Simuliranjem različitih parcijalnih opterećenja i vanjskih uvjeta pokušalo se utjecati na radne parametre termoelektrane i procijeniti isplativost njenog pogona u takvim režimima rada. Navedeni su proračuni provedeni na dva načina, klasičnim analitičkim proračunom i služeći se softverom Ebsilon Professional. Svrha je bila pronalaženje eventualnih odstupanja te usporedba dobivenih rezultata i u konačnici projektiranje postrojenja s od tih slučajeva najpovoljnijim stupnjem djelovanja. Istovremeno, potrebna pažnja posvećena je emisiji dimnih plinova u okoliš, vodeći računa o postavljenim ograničenjima za ovu vrstu postrojenja. Nakon provedenih analiza utvrđeno je kako su najveći gubici energije u kondenzatoru, a eksergije u generatoru pare. Također, zaključeno je da su navedeni gubici neizbježni, ali isto tako da se njihovim svođenjem na minimum povećava iskoristivost procesa što je neizmjerno važno s obzirom da termoelektrane još uvijek zauzimaju veliki postotak u ukupnoj proizvodnji električne energije. Modelirana termoelektrana radi sa stupnjem djelovanja većim od uobičajenog pa se došlo do zaključka da su postignuti najpovoljniji, za zadane parametre, uvjeti rada.
Abstract (english)
The aim of the work was to model a thermal power plant with a nominal power of 350 MWel for different loads (25% -100%) and to investigate where and why losses occur in the process of converting the energy of various forms into electricity. By analyzing energy and exergy losses and finding the parts of plant in which they are the largest, thermal efficiency has been explored. By mean of different partial loads and external conditions, simulation of the operating parameters influence on the thermal power plant effectiveness was assessed. The calculations have been done in two ways, the classic analytical calculation and by using the Ebsilon Professional software. The purpose was to find possible deviations and compare the obtained results needed for the thermal powerplant design with the most favourable setup. At the same time, the necessary attention has been given to the emissions of the fuel gases into the environment compared with the fuel gasses limits. After the analysis, it was determined that the largest energy losses occur in the condenser and exergy losses in the steam generator. It has been concluded that these losses are inevitable, but also that minimizing them increases the efficiency of the process, which is extremely important given that the thermal power plant still occupies large percentages in total electricity production. The modelled thermal power plant operates with efficiency higher than usual, so it can be concluded that the most favourable, for the given parameters, operating conditions have been achieved.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:190:847229
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2021-08-27 09:48:35