Streszczenie: his work was performed to improve the storage and transportation
technology of gas hydrates in nonequilibrium conditions. At atmospheric pressure
and positive ambient temperature, they gradually dissociate into gas and water.
Simulation of the gas hydrate dissociation will determine optimal conditions for
their transportation and storage, as well as minimize gas loss. Thermodynamic
parameters of adiabatic processes of forced preservation of pre-cooled gas hydrate
blocks with ice layer were determined theoretically and experimentally. Physical
and mathematical models of these processes were proposed. The scientific novelty
is in establishing quantitative characteristics that describe the gas hydrates
thermophysical parameters thermophysical characteristics influence on the heat
transfer processes intensity on the interphase surface under conditions of gas
hydrates dissociation. Based on the results of experimental studies, approximation
dependences for determining the temperature in the depths of a dissociating gas
hydrate array have been obtained. Gas hydrates dissociation mathematical model
is presented.
Abstract: his work was performed to improve the storage and transportation
technology of gas hydrates in nonequilibrium conditions. At atmospheric pressure
and positive ambient temperature, they gradually dissociate into gas and water.
Simulation of the gas hydrate dissociation will determine optimal conditions for
their transportation and storage, as well as minimize gas loss. Thermodynamic
parameters of adiabatic processes of forced preservation of pre-cooled gas hydrate
blocks with ice layer were determined theoretically and experimentally. Physical
and mathematical models of these processes were proposed. The scientific novelty
is in establishing quantitative characteristics that describe the gas hydrates
thermophysical parameters thermophysical characteristics influence on the heat
transfer processes intensity on the interphase surface under conditions of gas
hydrates dissociation. Based on the results of experimental studies, approximation
dependences for determining the temperature in the depths of a dissociating gas
hydrate array have been obtained. Gas hydrates dissociation mathematical model
is presented.
Pełny tekst