Analiza promjene uvjeta u generatoru pare kod uvođenja recirkulacije dimnih plinova

master's thesis

• Title (english): Analysis of changes in conditions in the steam generator when introducing flue gas recirculation
• Author: Stipe Šestan
• Mentor: Daniel Rolph Schneider (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-01-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract

Rad se sastoji od termodinamičkog, hidrodinamičkog i aerodinamičkog proračuna generatora pare
u osnovnom režimu (načinu) rada te potom uvođenja recirkulacije dimnih plinova u tok zraka za
izgaranje kod istoga. Termodinamički proračun obuhvaća dimenzioniranje ložišta i konvektivnih
površina. Hidrodinamički proračun obuhvaća izračun otpora strujanja radnog medija, odnosno
padova tlaka u svim izmjenjivačima topline. Aerodinamički proračun predstavlja izračun otpora
strujanja dimnih plinova kroz konvektivni kanal. Na kraju se uvodi recirkulacija dimnih plinova
za tri slučaja te se analiziraju promjene uvjeta u proračunatom generatoru pare poput promjene
temperature ložišta, preraspodjele toplinskih tokova i promjene količine dušikovih oksida.

Abstract (english)

The thesis consists of thermodynamic, hydrodynamic and aerodynamic calculation of the steam generator in the basic mode of operation and then introducing the recirculation of flue gases into the air flow for combustion. The thermodynamic calculation includes the dimensioning of the combustion chamber and convective surfaces. The hydrodynamic calculation includes the calculation of the flow resistance of the working medium, i.e. pressure drops in all heat exchangers. The aerodynamic calculation represents the calculation of the resistance to the flow of flue gases through the convective channel. At the end, flue gas recirculation is introduced for three cases, and changes in conditions in the calculated steam generator are analyzed, such as changes in the temperature of the combustion chamber, redistribution of heat flows and changes in the amount of nitrogen oxides.

• Keywords: Generator pare; Termodinamički proračun; Hidrodinamički proračun; Aerodinamički proračun; Recirkulacija dimnih plinova
• Keywords (english): Steam generator; Thermodynamic calculation; Hydrodynamic calculation; Aerodynamic calculation; Flue gas recirculation
• Language: croatian
• URN:NBN: urn:nbn:hr:235:528573
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-01-18 13:11:07