Utjecaj vlažnosti biomase na pogon postrojenja

Kodba, Bruno (2016) Utjecaj vlažnosti biomase na pogon postrojenja. = Impact of biomass moisture on plant operation. Undergraduate thesis , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Lončar, Dražen.

[img]
Preview
Text
Kodba_2016_zavrsni_preddiplomski.pdf - Published Version Jezik dokumenta:Croatian

Download (2MB) | Preview

Abstract (Croatian)

U radu je opisan princip rada kogeneracijskih postrojenja te neke dostupne tehnologije koje koriste krutu biomasu kao gorivo. Naglasak je stavljen na vodeno-parno postrojenje te na postrojenje koje koristi organsku radnu tvar, tzv. ORC postrojenje. Također, izrađeni su pojednostavljeni matematički modeli dinamike procesa za termouljni i vodeno-parni kotao s izgaranjem biomase na rešetki kako bi bilo moguće simulirati utjecaj vlažnosti biomase na parametre na izlazu iz kotla. Proveden je termodinamički proračun izgaranja te dimenzioniranje veličina u sustavu. Početni podatak bio je potreban toplinski tok koji se mora prenijeti na radni medij koji iznosi 5MW. Nakon toga uslijedila je simulacija utjecaja promjenjive vlažnosti na temperature na izlazu iz izmjenjivača te su tablično prikazani dobiveni podaci. Na kraju su opisani problemi koje prevelika ili premala količina vlage u biomasi može izazvati u postrojenjima te regulacijske mjere koje mogu taj učinak kompenzirati.

Abstract

This work describes the general principles of some commercially available cogeneration technologies that use solid biomass as a fuel. Emphasis is placed upon water-steam and ORC cogeneration plants. Also, simplified mathematical models of sintetic oil and water-steam boilers with combustion of solid biomass on a grid were made in order to simulate the impact of biomass moisture on working fluid exit temperatures. The thermodynamic calculation of boiler was made and plant dimensions were chosen. Initial data was the required heat flow that needs to be transferred between flue gases and working fluid with a value of 5MW. After that the simulation of variable moisture impact on working fluid exit temperatures was made and the results are shown in pictures. At the end, some problems that occur from variable moisture in plants were described and some regulatory measures proposed.

Item Type: Thesis (Undergraduate thesis)
Uncontrolled Keywords: biomasa; organski Rankineov process; vodeno-parni proces; vlaga
Keywords (Croatian): biomass; organic Rankine cycle; water-steam cycle; moisture
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: 08 Mar 2016 11:23
Last Modified: 06 Mar 2018 06:03
URI: http://repozitorij.fsb.hr/id/eprint/5172

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

Nema podataka za dohvacanje citata