Visit the Energy Systems Laboratory Homepage.
Calibration of Tangential Paddlewheel Insertion Flowmeters
Loading...
Date
1992-05
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Energy Systems Laboratory (http://esl.eslwin.tamu.edu)
Abstract
This paper reports on the efforts to calibrate flow sensors that are being used to monitor building thermal energy use in a large scale monitoring project. Several insertion-type paddlewheel meters are being tested with a dynamic-weight flowloop at varying flow velocities in pipe sizes ranging from 3-12 inches to establish their accuracy and metering characteristics. Preliminary tests indicate that some of the meters do not have the correct multiplying factor and as a result, indicate flow rates that are as much as 15% lower than the actual flow rates. However, when a corrected multiplier is applied the meters perform to within ±5% of the flow rate. Preliminary tests also show that magnetic type paddlewheel meters may not be the best choice for flow rates below 2 ft/s.
Description
Keywords
Flow Sensors, Calibration, Insertion-Type Paddlewheel Meter, Multiplying Factor