Modeling of scale formation and corrosion from geothermal water
Modeling of scale formation and corrosion from geothermal water
复制标题
地热水结垢和腐蚀的建模
DOI：
10.1016/s0013-4686(97)00242-9
复制
发表时间：
1998
影响因子：
6.6
通讯作者：
E. Kálmán
中科院分区：
文献类型：
--
作者：
G. Pátzay;G. Stahl;F. Kármán;E. Kálmán
模拟沿流动路径的颗粒尺寸演变、结垢和腐蚀对于数据解释以及地热和热水工厂的工程应用(例如，最大限度地减少结垢)具有非常重要的意义。采用Davies和Pitzer活度计算方法，建立了CaCO_3--H_2O--CO_2体系方解石垢形成的平衡模拟算法和计算机程序。利用Davies和Pitzer活度计算方法，建立了NaKMgCaHHBaBrSO4SO4OHHCO3CO3Co2H2O体系中CaCO3，CaSO4，BaSO4，SrSO4垢形成的平衡模拟算法和计算机程序。该程序还确定了朗格利埃和里兹纳饱和指数，这对描述溶液中的结垢和腐蚀特性很有用。建立了用于确定地热井中气泡点和气泡深度与井口之间气体CO2、CH4和N2分压分布的平衡模拟算法和计算机程序。
Simulation of particle size evolution and of scale formation and corrosion along the flow path is of the greatest importance for data interpretation as well as for engineering applications (eg minimisation of the scale formation) in geothermal and hot water plants. An equilibrium simulation algorithm and a computer program for calcite scale formation in a CaCO3 H2OCO2system has been developed using the Davies and Pitzer activity calculation methods. An equilibrium simulation algorithm and a computer program for CaCO3, CaSO4, BaSO4, SrSO4scale formation in a NaKMgCaHBaSrClBrSO4 OHHCO3CO3CO2H2O system are also constructed using the Davies and the Pitzer activity calculation methods. The program determines the Langelier and Ryznar saturation indexes too, which are useful for the description of the scaling and corrosion characteristics in a solution. An equilibrium simulation algorithm and a computer program for the determination of the bubble point and of the partial pressure profiles of the gases CO2, CH4and N2between the bubble point depth and the well head in a geothermal well are constructed.