Ispitivanje karakteristika termo-higrostatirane klimatske komore

undergraduate thesis

• Title (english): Investigation of the performances of the thermo-hygrostated climatic chamber
• Author: Dora Subotić
• Mentor: Danijel Šestan (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-03-03, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U ovom radu prikazano je ispitivanje karakteristika termo-higrostatirane klimatske komore u temperaturnom rasponu od 20 °C do 70 °C i rasponu vlažnosti od 35 %rv do 90 %rv radi određivanja utjecaja komore na ukupnu nesigurnost umjeravanja mjerila relativne vlažnosti zraka u toj komori. Prvom fazom ispitivanja obuhvaćeno je umjeravanje termometara u termostatiranoj vodenoj kupki u temperaturnom području od 10 °C do 70 °C i određivanje njihovih karakteristika, odnosno koeficijenta za Callendar-Van Dusen (CVD) jednadžbu. Ovi termometri korišteni su u drugoj fazi za ispitivanje termo-higrostatirane klimatske komore. Metode obiju faza mjerenja detaljno su opisane te su uz njih prikazani dobiveni rezultati i dijagrami. Također je opisana korištena oprema i objašnjena je korištena metoda umjeravanja klimatske komore. Na kraju su prikazani rezultati ispitivanja u zadanim točkama s određenim doprinosima komore ukupnoj mjernoj nesigurnosti.

Abstract (english)

This bachelor thesis presents an examination of the characteristics of thermo-hygrostatic
climatic chamber in the temperature range from 20 °C to 70 °C and relative humidity range
from 35 %rh to 90 %rh in order to determine the influence of the chamber on the overall
uncertainty of calibration of relative humidity meters in that chamber . The first phase of testing
included calibration of thermometers in a thermostatic calibration bath, in the temperature range
from 10 °C to 70 °C. Based on the calibration results, characteristics of thermometers were
determined, i.e. coefficients for Callendar-Van Dusen (CVD) equation. These thermometers
were used in the second phase to characterize the thermo-hygrostatic climatic chamber. The
methods used in both phases of measurement are described in detail and the results are
presented in tabular and graphical forms. The equipment and the method used for testing are
also described and explained. Finally, the test results at the measurement points are presented
with uncertainty contributions related to the chamber to the overall measurement uncertainty.

• Keywords: termo-higrostatirana klimatska komora; ispitivanje karakteristika
• Keywords (english): thermo-hygrostatic climatic chamber
• Language: croatian
• URN:NBN: urn:nbn:hr:235:798698
• 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: 2022-02-24 10:00:22