Publication detail
Evaluation of pump characteristic from measurement of fast deceleration
HIMR, D. HABÁN, V.
Czech title
Hodnocení charakteristiky čerpadla z měření rychlého zpomalení
English title
Evaluation of pump characteristic from measurement of fast deceleration
Type
conference paper
Language
en
Original abstract
Article describes an experiment where a pump connected to the simple hydraulic circuit is decelerated. Since the deceleration is fast enough the operating point of the machine moves from the initial steady position to the breaking zone, turbine zone and back to the new steady position. A dependence of the specific energy and the torque on the flow rate was evaluated from the measurement of the input and output pressure, torque and rotational speed recorded during the deceleration. Obtained characteristic is much wider than curves obtained from regular measurement of steady state.
Czech abstract
Článek popisuje experiment, kde čerpadlo připojeno k jednoduchému hydraulickém okruhu je zpomalován. Vzhledem k tomu, zpomalení je dostatečně rychlý provozní bod stroje se pohybuje od počáteční ustálenou pozici na lámání zóna, zóna turbíny a zpět na novou stabilní pozici. Závislost měrné energie a točivého momentu o průtoku byla vyhodnocena z měření vstupního a výstupního tlaku, kroutícího momentu a otáček zaznamenané během zpomalování. Získá se charakteristika je mnohem širší než křivky získané z pravidelného měření ustáleném stavu.
English abstract
Article describes an experiment where a pump connected to the simple hydraulic circuit is decelerated. Since the deceleration is fast enough the operating point of the machine moves from the initial steady position to the breaking zone, turbine zone and back to the new steady position. A dependence of the specific energy and the torque on the flow rate was evaluated from the measurement of the input and output pressure, torque and rotational speed recorded during the deceleration. Obtained characteristic is much wider than curves obtained from regular measurement of steady state.
Keywords in English
pump characteristic, speed change
Released
18.11.2014
Publisher
EDP Sciences
Location
Liberec
ISSN
2100-014X
Book
EFM14 – Experimental Fluid Mechanics 2014
Volume
92
Number
1
Pages from–to
182–187
Pages count
8
BIBTEX
@inproceedings{BUT111099,
author="Vladimír {Habán} and Daniel {Himr},
title="Evaluation of pump characteristic from measurement of fast deceleration",
booktitle="EFM14 – Experimental Fluid Mechanics 2014 ",
year="2014",
volume="92",
number="1",
month="November",
pages="182--187",
publisher="EDP Sciences",
address="Liberec",
issn="2100-014X"
}