Abstract
Experimental values for the viscosity of sodium chloride solutions are critically reviewed for application to geothermal energy. Data published recently by Kestin, Los, Pepinov, and Semenyuk as well as earlier data are included. A theoretically based equation for calculating relative viscosity was developed, and used to generate tables of smoothed values over the ranges 20sup 0C to 350sup 0C, 0 to 5 m and pressures up to 50 MPa. The equation reproduces selected data to an average of better than 2 percent over the entire range of temperatures and pressures. Selected tables of data are included for KCl up to 150sup 0C, CaClsub 2 solutions up to 100sup 0C, and for mixtures of NaCl with KCl and CaClsub 2. Recommendations are given for additional data needs.
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