2017
DOI: 10.2514/1.a33804
|View full text |Cite
|
Sign up to set email alerts
|

Leak-Rate-Quantification Method for Gas Pressure Seals with Controlled Pressure Differential

Abstract: An enhancement to the pressure decay leak rate method with mass point analysis solved deficiencies in the standard method. By adding a control system, a constant gas pressure differential across the test article was maintained. As a result, the desired pressure condition was met at the onset of the test, and the mass leak rate and measurement uncertainty were computed in real-time. The data acquisition and control system were programmed to automatically stop when specified criteria were met. Typically, the tes… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

0
5
0

Year Published

2017
2017
2025
2025

Publication Types

Select...
3
2
1

Relationship

2
4

Authors

Journals

citations
Cited by 8 publications
(5 citation statements)
references
References 12 publications
0
5
0
Order By: Relevance
“…This method was similar to the standard pressure decay method with mass point leak rate analysis, but used a control system to maintain the desired differential pressure across the test article. Previous work has shown that this enhanced method is accurate, reliable, can be used to measure both large and small leaks, minimizes test time, and improves the measurement uncertainty [18].…”
Section: Test Methodsmentioning
confidence: 99%
“…This method was similar to the standard pressure decay method with mass point leak rate analysis, but used a control system to maintain the desired differential pressure across the test article. Previous work has shown that this enhanced method is accurate, reliable, can be used to measure both large and small leaks, minimizes test time, and improves the measurement uncertainty [18].…”
Section: Test Methodsmentioning
confidence: 99%
“…31 The apparatus was comprised of two flat platens manufactured from stainless steel, each with a surface roughness better than 0.4 µm. The test article was installed into a standard O-ring groove in the bottom platen, Fig.…”
Section: Leak Rate Testsmentioning
confidence: 99%
“…Using a technique described in Ref. 31, the mass of gas within the highpressure side of the apparatus was calculated at every time step using the pressure and temperature data and Eqn. 1.…”
Section: Leak Rate Testsmentioning
confidence: 99%
“…By adding the differential pressure control system, he improved the standard pressure attenuation method and added the mass point leakage rate analysis. Compared with the results of the standard method, the results calculated by the new method have significantly lower measurement uncertainty [9]. 2 to verify the impact of temperature recovery imbalance on the accuracy and detection ability of the leak detector.…”
Section: Introductionmentioning
confidence: 97%