Primjena toplinskog spremnika za povećanje učinkovitosti i isplativosti pogona postrojenja u sklopu centraliziranih toplinskih sustava

master's thesis

• Title (english): Utilization of heat storage for the increase of the efficiency and economic viability of district heating
• Author: Matija Pavičević
• Mentor: Neven Duić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2016-01-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract

Visokoučinkovita kogeneracija i centralizirani sustavi grijanja i hlađenja imaju velik potencijal za smanjenjem troškova primarne energije, koji je u zemljama EU u velikoj mjeri neiskorišten. Centralizirani toplinski sustavi imaju veliku važnost u planiranju i vođenju budućih energetskih sustava s obzirom da omogućavaju veću implementaciju obnovljivih izvora energije, veću fleksibilnost vođenja i potencijalno im smanjuju troškove. Primjena toplinskih spremnika može imati pozitivan utjecaj na centralizirani toplinski sustav povećavajući mu efikasnost rada proizvodnih jedinica, što često znači i smanjenje troškova. U kombinaciji s dizalicama topline toplinski spremnici imaju velik potencijal u integraciji obnovljivih izvora. Ovaj rad se bavi upravo implementacijom toplinskog spremnika i dizalice topline u centralizirani toplinski sustav. U sklopu rada izrađen je model za optimizaciju troškova rada, koji uključuje energetske tokove na izlazu iz analiziranih postrojenja, njihove učinkovitosti i rad toplinskog spremnika, na temelju kojeg je provedena analiza slučaja za grad Karlovac.

Abstract (english)

High efficiency cogeneration, together with district heating and cooling systems has great potential for reduction of primary energy consumption, which in EU countries is greatly unused. District heating systems are of great importance for planing and operating future energy systems because of their ability to implement renewable energy sources and high operational flexibility. Integration of thermal energy storage can be beneficial for district heating systems by increasing efficiency of their generation units, which usually means reduction in operating costs. In combination with heat pumps, thermal storage has great potential for integration of renewable energy sources. This thesis focuses mainly on implementation of thermal storage and heat pumps in district heating systems. Optimization model developed in this thesis includes output energy flows from production units, their efficiencies, and working schedule of thermal storage. Based on this input arguments case study of Karlovac has been conducted.

• Keywords: toplinski spremnik; centralizirani toplinski sustav; nelinearno programiranje; dizalica topline; kogeneracija na biomasu.
• Keywords (english): thermal storage; district heating systems; nonlinear programming; heat pumps; biomass cogeneration.
• Language: croatian
• URN:NBN: urn:nbn:hr:235:069458
• 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: 2019-05-22 15:28:59