Mjerenje parametara rada i učinkovitosti dizalice topline s i bez frekvencijskog pretvarača

undergraduate thesis

• Title (english): Measurement of operating parameters and heat pump efficiency with and without frequency converter
• Author: Stipe Šestan
• Mentor: Vladimir Soldo (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract

U posljednje vrijeme dizalice topline postižu sve veći napredak i sve više zauzimaju tržište. Do
toga su dovele njihova visoka učinkovitost i ekološka prihvatljivost u vremenima visoke
potrošnje i rasta cijene električne energije. Značajan udio u njihovoj visokoj učinkovitosti ima
regulacija rada kompresora. U ovome radu ispitat će se dva načina regulacije od kojih je jedan
primitivan, a drugi napredan. Provedeno je ispitivanje radnih parametara geotermalne dizalice
topline s bušotinskim izmjenjivačem topline. Dizalica topline radila je u režimu grijanja. Prvi
dio mjerenja proveden je za oblik najjednostavnije „on/off“ regulacije. Izmjereni su rezultati
analizirani i grafički prikazani. Drugi dio mjerenja proveden je za oblik naprednije regulacije
s ugrađenim frekvencijskim pretvaračem. Izmjereni su rezultati također analizirani i uz to
uspoređeni s „on/off“ načinom regulacije.

Abstract (english)

Recently, heat pumps have been making more and more progress and are occupying more and
more of the market. This was due to their high efficiency and environmental acceptability in
times of high electricity consumption and rising electricity prices. A significant part in their
high efficiency is played by the regulation of compressor operation. In this paper, two methods
of regulation will be examined, one of which is primitive and the other which is advanced.
Testing of the operating parameters of the geothermal heat pump with a borehole heat
exchanger was carried out. The heat pump was operating in heating mode. The first part of the
measurement was carried out for the form of the simplest "on/off" regulation. The measured
results were analyzed and graphically presented. The second part of the measurement was
carried out for a form of more advanced regulation with a built-in frequency converter. The
measured results were also analyzed and compared with the "on/off" mode of regulation.

• Keywords: Regulacija rada kompresora; Energetska učinkovitost u režimu grijanja; Geotermalna dizalica topline.
• Keywords (english): Compressor operation regulation; Energy efficiency in heating mode; Geothermal heat pump.
• Language: croatian
• URN:NBN: urn:nbn:hr:235:116041
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-09-26 19:29:13