: S. W. Webb, C. K. Ho
: Clifford K. Ho, Stephen W. Webb
: Gas Transport in Porous Media
: Springer-Verlag
: 9781402039621
: 1
: CHF 135.30
:
: Wahrscheinlichkeitstheorie, Stochastik, Mathematische Statistik
: English
: 446
: Wasserzeichen
: PC/MAC/eReader/Tablet
: PDF
CLIFFORD K. HOAND STEPHEN W. WEBB Sandia National Laboratories, P. O. Box 5800, Albuquerque, NM 87185, USA Gas and vapor transport in porous media occur in a number of important applications includingdryingofindustrialan foodproducts,oilandgasexplora ion,environm- tal remediation of contaminated sites, and carbon sequestration. Understanding the fundamental mechanisms and processes of gas and vapor transport in porous media allows models to be used to evaluate and optimize the performance and design of these systems. In this book, gas and vapor are distinguished by their available states at stan- ? dard temperature and pressure (20 C, 101 kPa). If the gas-phase constituent can also exist as a liquid phase at standard temperature and pressure (e. g. , water, ethanol, toluene, trichlorothylene), it is considered a vapor. If the gas-phase constituent is non-condensable at standard temperature and pressure (e. g. , oxygen, carbon di- ide, helium, hydrogen, propane), it is considered a gas. The distinction is important because different processes affect the transport and behavior of gases and vapors in porous media. For example, mechanisms specific to vapors include vapor-pressure lowering and enhanced vapor diffusion, which are caused by the presence of a g- phase constituent interacting with its liquid phase in an unsaturated porous media. In addition, the 'heat-pipe' exploits isothermal latent heat exchange during evaporation and condensation to effectively transfer heat in designed and natural systems.
TABLE OF CONTENTS6
INTRODUCTION9
PROCESSES AND MODELS11
GAS TRANSPORT MECHANISMS12
VAPOR TRANSPORT PROCESSES34
SOLID/GAS PARTITIONING54
TWO-PHASE GAS TRANSPORT62
CONSERVATION EQUATIONS78
GAS-PHASE DISPERSION IN POROUS MEDIA128
GAS INJECTION AND FINGERING IN POROUS MEDIA140
UNSTABLE AND FINGERING GAS FLOW IN FRACTURES175
NATURAL CONVECTION GAS TRANSPORT IN POROUS MEDIA185
SCALING ISSUES IN POROUS AND FRACTURED MEDIA206
NUMERICAL CODES FOR CONTINUUM MODELING OF GAS TRANSPORT IN POROUS MEDIA217
LATTICE BOLTZMANN METHOD FOR CALCULATING FLUID FLOWAND DISPERSION IN POROUS AND FRACTURED MEDIA225
MEASUREMENT AND MONITORING247
EXPERIMENTAL DETERMINATION OF TRANSPORT PARAMETERS248
AIR PERMEABILITY MEASUREMENTS IN POROUS MEDIA276
ANALYZING BAROMETRIC PUMPING TO CHARACTERIZE SUBSURFACE PERMEABILITY282
SUBSURFACE FLOW MEASUREMENTS293
MEASUREMENT OF VAPOR CONCENTRATIONS304
IN SITU MEASUREMENT OF INDUCED CONTAMINANT FLUX320
APPLICATIONS332
RADON TRANSPORT333
GAS TRANSPORT ISSUES IN LANDMINE DETECTION338
ENVIRONMENTAL REMEDIATION OF VOLATILE ORGANIC COMPOUNDS351
YUCCA MOUNTAIN HEATER TESTS369
IMPACT OF GAS GENERATION ON THE PERFORMANCE OF THEWASTE ISOLATION PILOT PLANT382
OILAND GAS INDUSTRYAPPLICATIONS OF GAS FLOW IN POROUS MEDIA404
GEOLOGIC CARBON SEQUESTRATION: CO2 TRANSPORT IN DEPLETED GAS RESERVOIRS415
INDUSTRIAL GAS TRANSPORT PROCESSES INVOLVING HEAT TRANSFER422
INDEX434