Návrh měření průtoku přehřáté páry a napájecí vody pomocí Venturiho trubic

Abstract

The main topic of this bachelor thesis is flow measurement and its most frequently used methods. The methods are described and compared in a short summary with the main focus on orifice meters, especially Venturi tubes. The practical part contains a concept of superheated steam measurement and feed water measurement by means of Venturi tubes for two sensors measuring pressure gap with different ranges. Using a thermojunction and a thermo- resistor Pt100 are compared further on. The conclusion includes a comparison of the proposed alternatives from the economical point of view as well as measurement accuracy.