Analiza uklapanja električnih bojlera u centralni toplinski sustav

Sučić, Matija (2019) Analiza uklapanja električnih bojlera u centralni toplinski sustav. = Analysis of implementing Electric Boilers in the District Heating System. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Čehil, Mislav.

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Abstract (Croatian)

U ovome radu napravljena je simulacija rada električnih bojlera velikih snaga u centralnom toplinskom sustavu (CTS) grada Zagreba na primjeru EL-TO Zagreb. U programskom paketu PLEXOS Integrated Energy Model izrađen je simulacijsko-optimizacijski model uklapanja električnih bojlera u EL-TO Zagreb. Model je izrađen na temelju ulaznih podataka koji obuhvaćaju tehničke i ekonomske parametre novih električnih kotlova te svih postojećih i planiranih jedinica na lokaciji, zatim podatke o očekivanom kretanju toplinskog konzuma te tržišne podatke (cijene električne energije, prirodnog plina i emisijskih jedinca). Simulacijsko optimizacijski model ima cilj minimizacije ukupnih troškova pogona EL-TO Zagreb. Analiza simulacija napravljena je za tri scenarija. Prvi scenarij je bez električnih kotlova, drugi scenarij predviđa uklapanje jednog vrelovodnog (30 MW) i jednog parnog električnog kotla (30 MW) te treći scenarij predviđa uklapanje dva parna električna kotla (2X30 MW) i jednog vrelovodnog (30 MW). Sva tri scenarija su napravljena za 2020., 2025. i 2030. godinu. Rezultati prikazuju da električni bojleri u oba scenarija (drugi i treći) imaju zanemariv udio u proizvodnji toplinske energije. U 2020. godini u drugom scenariju proizvode 0,08 % toplinske energije od ukupno proizvedene, a u trećem scenariju 0,33 %. U 2025. godini u drugom scenariju proizvode 0,025 % toplinske energije od ukupno proizvedene, a u trećem scenariju 1,18 %. Jednostavni period povrata električnih bojlera za drugi scenarij u 2020. godini iznosi 181 godinu, a za 2030.godinu iznosi 90 godina.

Abstract

For the purpose of this Thesis, the simulation of the operation of large-scale electric boilers in the District heating (DH) of the city of Zagreb, on the example of EL-TO Zagreb (Cogeneration Plant in Zagreb). Using the PLEXOS Integrated Energy Model software, a simulation-optimization model for electric boiler fitting in EL-TO Zagreb has been developed. The model has been created on the basis of a large amount of input data, including technical and economic parameters of modern electric boilers and all existing and planned units at the EL-TO, data of expected heat consumption and market data (the prices of electricity, natural gas and emission units). The main goal of the model is to minimize the total operating costs of EL-TO Zagreb.Three scenarios have been calculated using the model. The first scenario does not consider electric boilers usage, the second envisages the fitting of one hot water (30MW) and one steam electric boiler (30MW), while the third envisages fitting two steam electric boilers (2X30MW) and one hot water boiler. All the scenarios have been calculated for years 2020, 2025 and 2030. The obtained results show that electric boilers do not participate significantly in total heat energy production (according to second and third scenarios). For example, according to the second scenario, it has been calculated that the boilers produce 0.08% of the total heat energy in the year 2020 and 0.33% in the year 2025. Also, according to the third scenario, it has been calculated that the boilers produce 0.025% of the total heat energy in the year 2020 and 1.18% in the year 2025. The payback period for electric boilers is 181 years according to the second scenario and 91 according to third.

Item Type: Thesis (Master's thesis (Bologna))
Uncontrolled Keywords: centralni toplinski sustav, električni bojleri, PLEXOS, jednostavni period povrata, minimizacija ukupnih troškova
Keywords (Croatian): district heating, electric boilers, PLEXOS, ,minimize the total operating costs, payback period
Subjects: TECHNICAL SCIENCE > Mechanical Engineering > process energy engineering
Divisions: 500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair
Date Deposited: 25 Mar 2019 14:51
Last Modified: 29 Oct 2019 13:45
URI: http://repozitorij.fsb.hr/id/eprint/9271

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