Explicit numerical method for prediction of transport properties of aqueous glycol solutions

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Bahadori, A & Vuthaluru, HB 2009, 'Explicit numerical method for prediction of transport properties of aqueous glycol solutions', Journal of the Energy Institute, vol. 82, no. 4, pp. 218-222.

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Among various gas dehydration processes, absorption is the most commonly employed technique, wherein the water vapour in the gas stream gets absorbed in the glycol. In the present work, a numerical method is developed to predict the viscosity and thermal conductivity of aqueous glycol solutions as a function of temperature and glycol mole fraction. The adjusted coefficients of correlations have been optimised through an efficient and reliable algorithm by minimising the standard deviation of predicted values in comparison with the experimental data by solving the system of linear equations. The numerical results are compared with the reliable experimental data where the obtained results illustrate good agreement with the experimental data. The proposed method appears to be superior owing to its accuracy and clear numerical background, wherein the relevant coefficients can be retuned if new and more accurate data are available in the future. The proposed method predicts the transport properties of aqueous glycol solutions for temperature between 290 and 450 K and all concentrations of aqueous glycol solutions.

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