Safety Relief Valve Test Rig Update Marc Claas - IRC

Current Location Basement of Mechanical

Engineering

Rig is anchored to the floor

Secure gas cylinder storage

Possible future air line

Added high speed data acquisition system

Test Rig Compressed air cylinders with two-stage regulator

Test Rig

5.9 cubic foot vessel to buffer pop test

Test Rig

Vessel drain valve

Test Rig

Inlet connection

Test Rig

Relief valve undergoing test

Test Rig

High speed data acquisition

Calibrated Pressure Transducer

Pressure Transducer Omega PX309-500GI

4-20 mA signal with 9-30V excitation

NIST Traceable Calibration

0.25% Static Accuracy Typical

2% Total Error Band on Most Ranges of Amplified Units

Response time of <1 ms

http://www.omega.com/pptst/Px309.html

Data Acquisition Hardware National Instruments 9203

8-Channel ±20 mA,

200,000 Samples/Second

16-Bit AI Module

cDAQ-9171

USB to computer

Power

Data

Easy to set up and use

http://sine.ni.com/nips/cds/view/p/lang/en/nid/208805

Data Acquisition Software LabView Signal Express

Easy set-up for basic logging and data visualization

Video of Operation

Test Results Software outputs list of numbers

Can be plotted and manipulated with Excel

Data Analysis Using pressure

Temperature of the air in the rig can be calculated

Data Analysis Using pressure

Mass of the air in the rig can be calculated

Time rate change of rig’s air mass allows mass flow to be estimated

Data Analysis – mass flow rate

Future Plans

We are continuing to shake test the rig

Possible compressed air line in future

We are considering what additional testing we can perform

Questions