Bioenergana u prehrambenoj industriji

Plevnik, Andrej (2015) Bioenergana u prehrambenoj industriji. = Bioenergy plant in food processing industry. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Lončar, Dražen.

[img]
Preview
Text
Plevnik_2015_diplomski.pdf - Published Version Jezik dokumenta:Croatian

Download (2MB) | Preview

Abstract (Croatian)

Tema ovog diplomskog zadatka je modernizacija sustava za proizvodnju tehnološke pare za potrebe prehrambene industrije. Kotlovi na fosilna goriva, kao sve nestabilniji i nesigurniji izvor energije zamjenjuju se kotlovima na obnovljivi izvor energije – biomasu. Prehrambena industrija predstavlja velikog potrošača toplinske energije s diskontinuiranim procesima. Takvi procesi zahtijevaju velike količine energije u kratkom periodu s naglim promjenama u opterećenju. Biomasa predstavlja najvažniji obnovljivi izvor za dobivanje toplinske energije ali klasični sustavi izgaranja biomase ne mogu pratiti nagle promjene opterećenja. Za rješavanje tih problema napravljena je tehno-ekonomska analiza provjerene tehnologije – kogeneracije na biomasu s izgaranjem na rešetki, parnom turbinom i reguliranim oduzimanjem pare. Kao alternativa takvom sustavu detaljno je objašnjen sustav s vrelouljnim kotlom, akumulatorom vrelog ulja i izmjenjivačem topline – isparivačem za proizvodnju tehnološke pare, te je napravljena tehno-ekonomska analiza za usporedbu s kogeneracijom. U drugom dijelu rada je sustav s termo uljem je matematički modeliran u SIMULINK-u kako bi se pokazali odzivi sustava. Prikazana je dinamika pojedinih dijelova sustava kao i cijelog sustava. Na kraju rada napravljen je proračun akumulatora vrelog ulja s pripadajućim nacrtom.

Abstract

The subject of this master thesis is modernization of a system for steam production for the food industry. Since fossil fuels are becoming more and more unstable and insecure energy source, fossil fuel fired boilers are replaced by boilers using renewable energy source - biomass. The food industry is a large consumer of thermal energy with discontinuous processes. Such processes require large amounts of energy during short periods of time with sudden load changes. Biomass is the most important renewable source for producing thermal energy, but the standard biomass combustion systems can not respond to rapid load changes. To solve these problems, a techno-economic analysis of a proven technology (a cogeneration biomass combustion on a grid and steam turbine with controlled steam extraction) was performed. As an alternative, thermal oil boiler system, with a hot oil accumulator and a heat exchanger - evaporator for steam production is described in detail. A techno-economic analysis of this system was also performed for comparison with the cogeneration system. In the second part of the thesis, a mathematical model of the thermal oil system was created in Simulink-in order to show the system responses. The dynamics of individual parts of the system as well as the dynamics of the entire system were shown. In the end, a design and a layout of the hot oil accumulator were made.

Item Type: Thesis (Master's thesis (Bologna))
Uncontrolled Keywords: biomasa; kogeneracija; termo ulje; prehrambena industrija
Keywords (Croatian): biomass; cogeneration; thermal oil; food industry
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: 26 Jan 2015 11:33
Last Modified: 23 Jan 2017 05:56
URI: http://repozitorij.fsb.hr/id/eprint/3167

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

Nema podataka za dohvacanje citata