Utjecaj napunjenosti rashladnog uređaja radnom tvari na njegove radne karakteristike

undergraduate thesis

• Title (english): Influence of a refrigerant charge on performanace of a refrigeration unit
• Author: Denis Dergestin
• Mentor: Marino Grozdek (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2018-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U sklopu završnog rada preddiplomskog dijela studija strojarstva provedena je analiza utjecaja napunjenosti rashladnog sustava radnom tvari na radne karakteristike. Analiza je potkrijepljena provedenim eksperimentom u rasponu napunjenosti sustava od 70% do 130%. U prvom dijelu rada je dan pregled radnih karakteristika rashladnih sustava i mogućih načina punjenja sustava radnom tvari. Nakon toga je slijedila analiza podnapunjenosti i prenapunjenosti rashladnih sustava iz literature kojom je pokazan utjecaj na rad i radne karakteristike rashladnih sustava. Zatim je slijedilo provođenje eksperimenta te analiza dobivenih rezultata mjerenja s kojima su se potvrdio utjecaj na radne karakteristike pokazanih iz literature. U prilogu rada se nalazi i shema spajanja i regulacije mjerne linije korištene u eksperimentu.

Abstract (english)

As a part of bachelor's degree thesis in mechanical engineering analysis of the influence of a refrigerant charge on performance of a refrigeration unit has been carried out. Analysis has been supported with the experiment with charge levels ranging from 70% to 130%. In the first part of the thesis were given different performances of a refrigeration unit and different methods of refrigerant charging. Then followed the analysis of undercharge and overcharge of refrigeration units based on the literature from which the influence of a refrigerant charge on performance of a refrigeration unit has been shown. After that, the experiment has been carried out as well as the analysis of results, which confirmed the influence of a refrigerant charge of a refrigeration unit previously described. A scheme of regulation of refrigerant line used for the experiment is in the attachment.

• Keywords: radne karakteristike; napunjenost sustava; podnapunjenost sustava; prenapunjenost sustava
• Keywords (english): performance of a refrigeration unit; charge; undercharge; overcharge
• Language: croatian
• URN:NBN: urn:nbn:hr:235:617170
• 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: 2019-05-22 23:15:58