Měření součinitele místních ztrát různých ventilů na vzduchové trati

Abstract

This thesis deals with measuring of the local losses coefficient for various valves on the air line. In the introduction there are definitions of issues of the determinations of local losses and ways of pressure measuring and flow measuring. Based on the needs of the given measurement the experimental lines were proposed on which subsequently actual measurements took place. Metal valve, plastic valve and plastic ball valve, were measured always in various positions. Measurement was carried out on the track with the knee flowmeter and on the track with the digital flowmeter. The results of both approaches to the measuring are evaluated using tables and graphics dependencies. In the end, both approaches are compared to each other.