MEASUREMENTS OF UNSTEADY FLOW PARAMETERS IN PIPE-RECEIVER AND PIPE-TURBOCHARGER SYSTEMS
Journal Title: Metrology and Measurement Systems - Year 2006, Vol 13, Issue 1
Abstract
In the paper, the characteristic features of an unsteady flow in two systems: a high-volume pipe-receiver and a pipe-turbine are described. The tests were made under the conditions of a pulsating pipe supply in the range of frequencies 20-100 Hz. The following measurements of instantaneous values of unsteady flow parameters were made: pressure (piezoresistive transducers), temperature (Constant Current Thermometer) and velocity (Constant Temperature Anemometer). The applied measurement methods - owing to good dynamic properties of transducers - permitted us to gather relatively rich and complete information on flow phenomena in such systems. It was shown that the pipe-receiver system behaved as a resonator with a marked range of amplitude amplification and a distinct relationship between the resonance frequency and the pipe length. In this system, an effect of high pressure signal attenuation along the pipe and a reverse flow were observed as well. On the other hand, the pipe-turbine system is free of characteristic resonance frequencies and the pressure signal is transmitted along the pipe up to the turbine inlet section practically without any changes.
Authors and Affiliations
ALEKSANDER OLCZYK
Keywords
Related Articles
- EP ID EP84421
- DOI -
- Views 74
- Downloads 0
FREQUENCY-RESPONSE COMPENSATION OF DISTORTING PARTS OF MEASUREMENT SYSTEMS
In this article a class of digital correction filters is presented. This class of filters has been synthesized in an optimization procedure where two criteria are considered. The first criterion is an approximation of th...
INVESTIGATIONS OF THE COULOMB BLOCKADE EFFECT IN DOUBLE TUNNEL JUNCTIONS
The Coulomb Blockade effect (CBE) is observed in double tunnel junctions where a small metallic cluster is precisely located between two outer electrodes. This electrically isolated nanocluster exhibits capacitances of a...
PROPOSAL OF ARCHITECTURE OF DISTRIBUTED VIBRATION MONITORING SYSTEM WITH FLEXIBLE ARCHITECTURE AND REMOTE ACCESS SUPPORT
With advances in IT technologies even complex machines with several gears and bearings, running at varying rotational speed can be effciently monitored with an algorithm consisting of a combination of signal envelope and...
IMAGE PROCESSING SYSTEM PROPOSED TO BE APPLIED IN A GASTROSCOPIC LABORATORY
The article presents a way to integrate an endoscope with computer equipment. Software has been proposed to archive and access results of endoscopic tests. The data can be accessed at the hospital area and from outside i...
FEASIBILITY AND CHALLENGES OF DSL LOOP MAKE-UP IDENTIFICATION VIA SINGLE-ENDED LINE TESTS
Digital subscriber lines (DSL) offer the possibility to deliver broadband services over the existing telephone network. Yet, before deploying DSL, the subscriber loops must be tested to see if they can support high-speed...