Wind tunnel test of Teledyne Geotech model 1564B cup anemometer
The Department of Energy (DOE) Environment, Safety and Health Compliance Assessment (Tiger Team) of the Savannah River Site (SRS) questioned the method by which wind speed sensors (cup anemometers) are calibrated by the Environmental Technology Section (ETS). The Tiger Team member was concerned that calibration data was generated by running the wind tunnel to only 26 miles per hour (mph) when speeds exceeding 50 mph are readily obtainable. A wind tunnel experiment was conducted and confirmed the validity of the practice. Wind speeds common to SRS (6 mph) were predicted more accurately by 0--25 mph regression equations than 0--50 mph regression equations. Higher wind speeds were slightly overpredicted by the 0--25 mph regression equations when compared to 0--50 mph regression equations. However, the greater benefit of more accurate lower wind speed predictions accuracy outweight the benefit of slightly better high (extreme) wind speed predictions. Therefore, it is concluded that 0--25 mph regression equations should continue to be utilized by ETS at SRS. During the Department of Energy Tiger Team audit, concerns were raised about the calibration of SRS cup anemometers. Wind speed is measured by ETS with Teledyne Geotech model 1564B cup anemometers, which are calibrated in the ETS wind tunnel. Linear regression lines are fitted to data points of tunnel speed versus anemometer output voltages up to 25 mph. The regression coefficients are then implemented into the data acquisition computer software when an instrument is installed in the field. The concern raised was that since the wind tunnel at SRS is able to generate a maximum wind speed higher than 25 mph, errors may be introduced in not using the full range of the wind tunnel.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- OSTI ID:
- 5825677
- Report Number(s):
- WSRC-RP-91-415; ON: DE92009590
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANEMOMETERS
CALIBRATION
BAFFLES
FLOW RATE
FLUID FLOW
METEOROLOGY
REGRESSION ANALYSIS
STATISTICAL DATA
WIND
WIND TUNNELS
CONTROL EQUIPMENT
DATA
EQUIPMENT
FLOW REGULATORS
INFORMATION
MATHEMATICS
MEASURING INSTRUMENTS
NUMERICAL DATA
STATISTICS
TUNNELS
UNDERGROUND FACILITIES
440700* - Geophysical & Meteorological Instrumentation- (1990-)