Ambient temperature-invariant hot-wire anemometers for the construction of gas meters

Authors

DOI:

https://doi.org/10.15587/1729-4061.2014.26271

Keywords:

gas meter, hot-wire anemometer, static characteristic, transformation function invariance, ambient temperature

Abstract

Today the problem of natural gas use is especially acute in Ukraine since highly energy-intensive and morally and physically obsolete gas consuming technologies are used in everyday life and in almost all industries. Quality indicators of gas meters, used in Ukraine largely do not meet modern requirements because of low metrological characteristics and the inability to fulfill the requirements of many regulations in them. One of the major tasks in solving this problem is the accurate accounting of natural gas in the industrial and residential areas. The purpose of this paper is to develop proposals on improving construction methods of natural gas meters with improved metrological characteristics. Therefore, an analytical review of existing construction methods and tools of domestic gas meters is conducted. The methods for constructing high-accuracy hot-wire anemometric gas meters are proposed. The structure and static characteristic of the hot-wire anemometer transformation are given, the conditions for ensuring the invariance of the function of the hot-wire anemometer transformation to changing environmental conditions based on error analysis are proposed. The results of experimental studies of the hot-wire anemometer model for creating domestic gas meter are analyzed. In order to reduce the meter error it is proposed to use sensors based on p-n-junction for constructing hot-wire anemometric gas meter since temperature sensors based on p-n-junction are promising for measuring means of heat quantities and such sensors are able to work in a fairly large temperature range x.

Author Biographies

Ірина Ярославівна Обух, National University "Lviv polytehnyk" St. Bandera 28a, 5th Corps, Lvov; Ukraine, 79013

Postgraduate

Department of metrology, standardization and sertyfykation

Юрій Васильович Яцук, National University "Lviv polytehnyk" St. Bandera 28a, 5th Corps, Lvov; Ukraine, 79013

Ph.D, Senior Lecturer

Department of Computerized automation systems

Тарас Михайлович Олеськів, National University "Lviv polytehnyk" St. Bandera 28a, 5th Corps, Lvov; Ukraine, 79013

Postgraduate

Department of Metrology, Standardization and Certification

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Published

2014-07-18

How to Cite

Обух, І. Я., Яцук, Ю. В., & Олеськів, Т. М. (2014). Ambient temperature-invariant hot-wire anemometers for the construction of gas meters. Eastern-European Journal of Enterprise Technologies, 4(9(70), 10. https://doi.org/10.15587/1729-4061.2014.26271

Issue

Vol. 4 No. 9(70) (2014): Information and controlling system

Section

Information and controlling system

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Copyright (c) 2014 Ірина Ярославівна Обух, Юрій Васильович Яцук, Тарас Михайлович Олеськів

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