Comparison of High Pressure Transient PVT Measurements and Model Predictions – Part I

Technical Report · Thu Jul 01 00:00:00 EDT 2010

DOI:https://doi.org/10.2172/1039406· OSTI ID:1039406

Rice, Steven F. ^[1]; Paradiso, Nicholas Joseph ^[1]; Felver, Todd G. ^[1]; Winters Jr., William Stanley ^[1]; Evans, Gregory Herbert ^[1]

---

1. Sandia National Laboratories (SNL-CA), Livermore, CA (United States)

A series of experiments consisting of vessel-to-vessel transfers of pressurized gas using Transient PVT methodology have been conducted to provide a data set for optimizing heat transfer correlations in high pressure flow systems. In rapid expansions such as these, the heat transfer conditions are neither adiabatic nor isothermal. Compressible flow tools exist, such as NETFLOW that can accurately calculate the pressure and other dynamical mechanical properties of such a system as a function of time. However to properly evaluate the mass that has transferred as a function of time these computational tools rely on heat transfer correlations that must be confirmed experimentally. In this work new data sets using helium gas are used to evaluate the accuracy of these correlations for receiver vessel sizes ranging from 0.090 L to 13 L and initial supply pressures ranging from 2 MPa to 40 MPa. The comparisons show that the correlations developed in the 1980s from sparse data sets perform well for the supply vessels but are not accurate for the receivers, particularly at early time during the transfers. This report focuses on the experiments used to obtain high quality data sets that can be used to validate computational models. Part II of this report discusses how these data were used to gain insight into the physics of gas transfer and to improve vessel heat transfer correlations. Network flow modeling and CFD modeling is also discussed.

• Research Organization: Sandia National Laboratories (SNL-CA), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1039406
• Report Number(s): SAND--2010-4362
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
ACCURACY
AVAILABILITY
COMPRESSIBLE FLOW
HEAT TRANSFER
HELIUM
MECHANICAL PROPERTIES
PHYSICS
SIMULATION
TRANSIENTS