Umjeravanje termometra zrakoplova Pilatus PC-9 M

undergraduate thesis

• Title (english): Pilatus PC-9 M Thermometer Calibration
• Author: Marino Bukvić
• Mentor: Jurica Ivošević (mentor)
• Committee member: Tino Bucak (predsjednik povjerenstva)
• Committee member: Doris Novak (član povjerenstva)
• Committee member: Tomislav Radišić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Transport and Traffic Sciences; (Division of Aeronautics); (Department of Aeronautics); Zagreb
• Defense date and country: 2020-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Traffic and Transport Technology; Air Traffic

Abstract

Sustavi praćenja temperature u zrakoplovu sastoje se od termometara vanjske temperature i termometara temperature motora. Najzastupljeniji termometri vanjskog zraka su otporski, dok su u motoru najčešće termočlanci. U zrakoplovu modela Pilatus PC-9 (M) u uporabi je više sustava praćenja temperature. Na desnom krilu letjelice nalazi se senzor za vanjsku temperaturu, odnosno otporski termometar, a termometri u motoru su paralelno spojeni termočlanci „K-tipa“. Oba sustava su potrebna za regulaciju radne temperature te s obzirom na trošljivost materijala i drugih parametara poput promjene tlaka postoji opasnost od gubljenja funkcije ili kakvih drugih neispravnosti. Stoga je potrebno redovito provoditi test ispravnosti, točnije izlagati senzor ledu i približno dvije minute provjeravati smanjivanje temperature na prikazniku. Ako sve radi ispravno, temperatura će opadati prema logaritamskoj funkciji te će se na temperaturi ispod +4 °C uključiti indikator koji upozorava pilota na potrebu za odgovarajućim prilagodbama rada motora i drugih sustava. Ovakav praktični postupak proveden je u ovome radu.

Abstract (english)

The systems of tracking temperature in an aircraft are composed of outside temperature thermometers and engine temperature thermometers. Resistance thermometers are the most common outside temperature thermometers, while most common engine thermometer is a thermocouple. The aircraft Pilatus PC-9 (M) is equipped with several temperature tracking systems. The outside air temperature sensor is a resistence thermometer situated on the right wing of the craft, while the engine thermometers are composed of a parallel connected “K-type” thermocouples. Both of the systems are crucial for operating temperature regulation and due to the specific wear of the material and similar parameters like change of pressure, there is a risk od loss of function or any other possible malfunction. Therefore, it’s necessary to regulary perform a test of functionallity exposing the sensor to ice and observe as the temperature drops for approximately two minutes. If it works properly, the temperature will decrease logarithmically. As the temperature drops below +4 °C an indicator should activate as a warning to the pilot of the need for appropriate adjustments. Such a practical procedure was carried out in this paper.

• Keywords: zrakoplovni termometar; temperatura zraka; Pilatus PC-9; test ispravnosti
• Keywords (english): aircraft thermometer; air temperature; Pilatuc PC-9; functionallity test
• Language: croatian
• URN:NBN: urn:nbn:hr:119:948376
• Study programme: Title: Aeronautics; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka aeronautike (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka aeronautike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-10-22 14:08:58