Dynamics of heat exchange for gases in an underground cavity

Journal Article · Fri Jul 01 00:00:00 EDT 1983 · Combust., Explos. Shock Waves (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00790250· OSTI ID:5104374

Basanskii, E G; Kudryashov, N A; Moiseev, A L; Nekrasov, V I

Heat exchange among the gaseous products in an underground explosion cavity is examined in the case of heat exchange processes for the gases in an explosion cavity for water-free and steam-saturated silicate soils. The cooling of these gaseous explosions products in the cavity are discussed. A system of equations describes the cooling of the gas in the cavity up to the onset of condensation of the refractory soil component. A system of equations for the temperature, pressure, gas density, and mass of the molten rock has also been integrated. The dependence of the gas temperature in a cavity in anhydrous silicate soil on the time is shown. The variation in the amount of melted and vaporized soil in the cavity of an underground explosion owing to vaporization, condensation and fusion is shown. The heat exchange in an explosion cavity in soil containing water is considered. Calculations show that for cooling of the gases in an underground explosion cavity in the case of gas- and water-containing soils, taking into account heat exchange between the molten material and the gas in the cavity, leads to an increase in the rate of cooling of the gases during the initial stage.

• Research Organization: Moscow
• OSTI ID: 5104374
• Journal Information: Combust., Explos. Shock Waves (Engl. Transl.); (United States), Vol. 19:1; Other Information: Trans. from Fizika Goreniya i Vzryva, Jan 1983
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
GASES
COMBUSTION PRODUCTS
COOLING
HEAT TRANSFER
UNDERGROUND EXPLOSIONS
CALCULATION METHODS
EQUATIONS
MOISTURE
SILICATES
SOILS
THERMODYNAMICS
ENERGY TRANSFER
EXPLOSIONS
FLUIDS
OXYGEN COMPOUNDS
SILICON COMPOUNDS
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry