Određivanje toplinskih prinosa energetskih pilota pri iskorištavanju plitke geotermalne energije

master's thesis

• Title: Određivanje toplinskih prinosa energetskih pilota pri iskorištavanju plitke geotermalne energije : diplomski rad
• Title (english): Determination of heat capacity of energy piles when utilizing shallow geothermal energy : master's thesis
• Author: Tomislav Francetić
• Mentor: Tomislav Kurevija (mentor)
• Mentor: Marija Macenić (komentor)
• Committee member: Tomislav Kurevija (predsjednik povjerenstva)
• Committee member: Dubravko Domitrović (član povjerenstva)
• Committee member: Želimir Veinović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Petroleum and Gas Engineering and energy); Zagreb
• Defense date and country: 2021-02-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Mining

Abstract

U posljednjih 20-ak godina, s ciljem uključivanja obnovljivih izvora energije u sektoru zgradarstva za potrebe grijanja i hlađenja, energetski piloti postaju sve više zastupljeni. Pri projektiranju energetskih pilota, piloti se prvo dimenzioniraju na nosivost kako bi zadovoljili funkciju temeljenja objekta. Naknadno se ugrađuju izmjenjivači topline u pilot, a testom toplinskog odaziva određuju se termogeološki parametri tla. Prema tome, u radu je modeliran energetski pilot u svrhu određivanja dostupnog toplinskog opterećenja za različite duljine pilota, vrijednosti toplinske vodljivosti tla, promjere ugrađenih izmjenjivača topline i ukupne protoke radnog fluida. Protok radnog fluida određen je hidrauličkom analizom, uz ostale hidrauličke parametre. Ista toplinska opterećenja kasnije su narinuta na energetski pilot s ciljem određivanja toplinskog kapaciteta pilota. Na kraju je prikazan princip modeliranja više energetskih pilota u polju, prilikom realnog rada sustava.

Abstract (english)

In the last 20 years, with the aim of including renewable energy sources in the building sector for heating and cooling, energy piles are becoming more common. When designing energy piles, the piles are first dimensioned for load-bearing capacity to satisfy the foundation function. Subsequently, heat exchangers are installed in the pile, and the thermogeological parameters of the soil are determined by the thermal response test. Therefore, an energy pile was modeled for the purpose of determining the available heat load for different pile lengths, soil thermal conductivity values, diameters of installed heat exchangers and total working fluid flows. The working fluid flow was determined by hydraulic analysis, along with other hydraulic parameters. The same heat loads were later applied to the energy pile with the aim of determining the heat capacity of the pile. Finally, the principle of modeling multiple energy piles in the field, during the actual operation of the system, is presented.

• Keywords: energetski piloti; nosivost pilota; toplinski prinosi; toplinska vodljivost; FLS metoda
• Keywords (english): energy piles; load-bearing capacity of pile; heat capacity; heat conductivity; FLS method
• Language: croatian
• URN:NBN: urn:nbn:hr:169:750208
• Study programme: Title: Mining Engineering; specializations in: Mining engineering, Geotechnical engineering, Waste treatment and disposal; Course: Mining engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka rudarstva (magistar/magistra inženjer/inženjerka rudarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-02-25 10:14:19