Non-linear effects in water-vapour extraction from a geothermal reservoir

Richardson, C. N. and Tsypkin, G. G. (2004) Non-linear effects in water-vapour extraction from a geothermal reservoir. Journal of Engineering Physics and Thermophysics, 77. pp. 532-546.

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Abstract

he flow of a water–vapor mixture with phase transitions in a geothermal reservoir is considered. The equations were solved using a similarity approach. Linearized equations were considered analytically, and the full nonlinear equations were investigated numerically. It was found that for flows with large gradients of temperature and pressure, the waterdashsaturation function can change nonmonotonically and have a minimum value at some distance from the extraction point. It was shown that if the liquid phase contains dissolved salt then the vaporization process can lead to precipitation of the latter in this lowdashsaturation zone. In the plane of the main parameters, the critical diagram, which distinguishes different regimes of salt precipitation, is constructed.

Item Type: Article
Uncontrolled Keywords: BPI IA44A
Subjects: 02 - Geodynamics, Geophysics and Tectonics
Divisions: 02 - Geodynamics, Geophysics and Tectonics
Journal or Publication Title: Journal of Engineering Physics and Thermophysics
Volume: 77
Page Range: pp. 532-546
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:03
Last Modified: 23 Jul 2013 10:08
URI: http://eprints.esc.cam.ac.uk/id/eprint/629

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