Dynamiczne błędy pomiarów temperatury czynnika roboczego w kotłach energetycznych

• Autorzy: Węglowski B.

Warianty tytułu

EN

Dynamic fluid temperature measurements errors in power boilers

• Języki publikacji: PL

Abstrakty

EN

Temperature histories of the air and water were measured using a few different thermocouples including industrial thermometers. Dynamic temperature measurement error during the start-up and shut-down of the power-boilers is very large. Temperature measurement should be accurate particularly during determination of the heat transfer coefficient on the inner surface of the pressure components being in contact with water of steam. In order to do quantitative comparison of thermocouples the first and second order functions u(t) were determined that were answers of the thermocouples for the unit change of the fluid. The methods of decreasing the dynamic measurement error were presented.

Słowa kluczowe

PL

błędy pomiaru temperatury; czujniki termoelektryczne; kotły energetyczne; pomiar temperatury

• Wydawca: Wydawnictwo Politechniki Krakowskiej im. Tadeusza Kościuszki
• Czasopismo: Czasopismo Techniczne. Mechanika
• Rocznik: 2001
• Tom: R. 98, z. 5-M
• Strony: 249--257
• Opis fizyczny: Bibliogr. 4 poz., wykr., wz.

Twórcy

autor

Węglowski B.

• Instytut Aparatury Przemysłowej i Energetyki, Politechnika Krakowska

Bibliografia

• [1] Moffat R. J., Describing the uncertainties in experimental results, Experimental Thermal and Fluid Science, January 1988, s. 3-17.
• [2] Szydłowski H., Pracownia fizyczna, PWN, Warszawa 1994.
• [3] Modern Power Station Practice, Volume F, Control and instrumentatoin, Pergamon Press, London 1991.
• [4] Table Curve, Jandell Scientific, Version 5.0, San Rafael, California, USA, 2000.