Abstract
At methane hydrate burning a large amount of steam enters the combustion area, which leads to a decrease in the combustion temperature. Today, there are no reliable methods for modeling the combustion of gas hydrate, taking into account the influence of the gas hydrate dissociation rate, the external air velocity, the heat transfer coefficient and the water vapor concentration. The existing numerical models allow predicting the field of temperature and concentrations only above the surface of a small particle of methane hydrate, as well as without external air motion. In addition, there are no studies on the influence of these factors on the stability of combustion. This paper presents the experimental results and modeling of the combustion of a gas hydrate layer. The effect of water vapor concentration on the combustion stability is investigated. Combustion over a layer of methane hydrate powder in a wide range of laminar air flow rates is studied. The obtained results can be useful for improving the combustion model.
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