Reduction of the Effect of Expanded Connection on Flowrate Coefficient of a Laminar Flowmeter by Flow Strainer

DOI Web Site

Bibliographic Information

Other Title
  • 整流装置による急拡大接続部が層流形流量計の流量係数に及ぼす影響の低減

Abstract

<p>Laminar flowmeter with a measuring part formed by tied narrow tubes is a useful flowmeter because of its quick response time. Flowrate passing through the laminar flowmeter is calculated from a pressure loss in the tied narrow tubes and a flowrate coefficient. However, the flowrate coefficient depends on shape of the piping connected to the flow meter. In this paper, we focus on reduction of the effect of the expanded connection on the flowrate coefficients by means of perforated plates-type flow strainer. Three kinds of perforated plates were employed as flow strainer, and connected to each side of the measuring part of the flowmeter. Two types of connecting tube of a diameter of 4 mm and 10 mm were tested. The flowrate coefficient was experimentally determined by comparison to a standard flowmeter. The results suggested that a perforated plate in which the diameter of the holes gradually increases from the center toward the tube wall is effective in reducing the change of flowrate coefficient.</p>

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top