Journal of Thermodynamics / 2009 / Article / Tab 3

Review Article

Development of Predictive Techniques for Estimating Liquid Water-Hydrate Equilibrium of Water-Hydrocarbon System

Table 3

Experimental [16] and predicted/calculated solubility of methane in pure water being in equilibrium with gas hydrates (liquid water-hydrate equilibrium) [4].

𝑇 / K 𝑃 / M P a Experimental [16] methane solubility/mole fraction ( Γ— 1 0 3 )Predicted/calculated methane solubility using ANN algorithm/mole fraction ( Γ— 1 0 3 )AD%Predicted methane solubility using thermodynamic model/mole fraction ( Γ— 1 0 3 ) A D % †

276.1950.00 1 . 2 5 βˆ— βˆ— 1.293.21.4012.0
277.8550.811.501.444.01.553.3
279.8550.98 1 . 6 5 βˆ— 1.650.01.745.5
280.4751.261.751.721.71.813.4
276.36101.001.251.304.01.4213.6
278.71101.731.501.532.01.638.7
280.11101.881.651.681.81.777.3
280.65102.431.751.740.61.834.6
276.67127.101.251.336.41.4415.2
278.90127.221.501.553.31.6510.0
280.39127.351.651.713.61.809.1
281.08127.45 1 . 7 5 βˆ— βˆ— 1.792.31.876.9
276.91143.101.251.358.01.4717.6
279.20143.621.501.585.31.6812.0
280.59143.251.651.734.81.8210.3
281.65143.241.751.866.31.9410.9

βˆ— D a t a used for testing.
βˆ— βˆ— D a t a used for validation (the remaining data were used for training).
† 𝐴 𝐷 = | ( e x p e r i m e n t a l v a l u e βˆ’ p r e d i c t e d / c a l c u l a t e d v a l u e ) / e x p e r i m e n t a l v a l u e | .

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.