Combustion of methane hydrates

Nakoryakov, V. E.; Misyura, S.Y.; Elistratov, S. L.; Manakov, Andrey Yu.; Shubnikov, A. E.

doi:10.1134/s181023281302001x

Cited by 71 publications

(25 citation statements)

References 10 publications

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“…4 shows photographs of the process of desorption of a thin film of an aqueous solution of CsCl on the horizontal heating surface of the experimental setup [3,4], with a working area made of titanium. The working area was 70 mm in diameter and the working surface temperature was maintained at 90 °C.…”

Section: Resultsmentioning

confidence: 99%

Special features of evaporation of water-salt solutions on a horizontal heating surface

2017

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Abstract. Experimental investigate the process of evaporation of watersalt solutions on the horizontal heating surface at a temperature of 90 °C. It was revealed that there are differences in the process of evaporation of hydrous solutions of salts forming and not forming water-salt hydrates. The absence of hydrates of salts in hydrous solutions NaCl, CaCl 2 and CsCl made it possible to fix the rate of formation of a solid phase (nucleation) in the volume of the supersaturated solution. Problem StatementThe efficiency of absorption thermotransformers (ATT) depends directly on the ability of the working fluid to absorb steam. As working fluid for ATT, water-salt solutions are most widely used. The higher their absorption capacity, the better the performance of absorption chillers and heat pumps.Water-salt solutions have the greatest capacity for absorption near the equilibrium crystallization line. In Fig. 1 shows the solubility curves of various salts as a function of temperature. In practice, it is customary to produce work processes in ATT with less concentrated solutions to eliminate the phenomenon of solution crystallization, especially in regenerative heat exchangers. In general, this reduces the efficiency of the desorption and absorption processes, increases the total specific quantity of metal of the design.

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Section: Resultsmentioning

confidence: 99%

Special features of evaporation of water-salt solutions on a horizontal heating surface

2017

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“…Predictions for LFP can be obtained on the basis of understanding of boiling key mechanisms. Condensation and evaporation of pure liquids differ significantly from absorption and desorption of salt solutions or phase transition of alcohol solutions [1][2][3][4][5][6][7][8][9]. At desorption of droplet solution there are salt spot and crystals, which depend on the wettability (droplet contact angle).…”

Section: Introductionmentioning

confidence: 99%

“…Phase transitions rates (evaporation, crystallization, dissociation) strongly depend on both the external heat flux and internal local heat exchanges [13][14][15][16][17][18][19] and on impurities [20][21]. The measurement procedure in non-isothermal flow is presented in [22].…”

Section: Introductionmentioning

confidence: 99%

Evaporation and boiling crisis of droplets alcohol solution

Misyura

Морозов

2017

MATEC Web Conf.

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Abstract. Evaporation and boiling crisis of droplets ethanol aqueous solution were studied experimentally. The evaporation intensity depends on the nucleate boiling, solution diffusion, a change in physical characteristics with time and droplet interfacial surface area. At nucleate boiling in a droplet, most evaporation relates to a growth in the droplet surface area and only 20 % relates to the diffusion effect and a variation in the thermophysical coefficients. At boiling crisis, experimental dependence for vapor layer height on overheating was observed. At Leidenfrost temperature, the height of the vapor layer was many times higher than the surface microroughness value of the wall. There are oscillates of liquid-vapor interface, and this increases the transitional temperature range associated with a boiling crisis of droplets.

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“…Research [1][2][3][4][5][6][7][8][9] aimed at studying wetting, spreading, and phase transition of a droplet is currently very relevant. It is connected with the extensive application of the obtained results.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of Contact Line Movement of a Droplet Spreading Over a Solid Surface

2016

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Abstract. The contact line movement, advancing and receding, of the distilled water droplet was studied on the polished and laser patterned aluminum surfaces. The obtained dependences of the dynamic contact angles on the contact line speed were fitted by the combined theory consisting of molecular-kinetic and hydrodynamic theories. Results obtained on laser patterned surface are found to fit better to the theory in comparison with polished surface. The assumption was made that this result is connected with the low contact angle hysteresis on the patterned surface compared to the polished one. It means that combined theory does not consider the contact angle hysteresis.

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Combustion of methane hydrates

Cited by 71 publications

References 10 publications

Special features of evaporation of water-salt solutions on a horizontal heating surface

Special features of evaporation of water-salt solutions on a horizontal heating surface

Evaporation and boiling crisis of droplets alcohol solution

Mechanism of Contact Line Movement of a Droplet Spreading Over a Solid Surface

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