摘要
针对热电厂冷却水排放河网BI起的热污染问题．考虑风速、水深、水温对自由水表面散热的影响，BI入水温综合衰减系数，利用生态模型试验室（ECO Lab）开发了适用于平原感潮内陆河网的一维温排水模型，并利用该模型对某化工区热电厂的温排水过程进行了模拟，利用实测水温资料对模型进行了率定和验证。结果表明，模拟结果同实测结果非常吻合，所开发的温排水预测模型和关键参数取值很好地反映了受人工调控的平原河网的水流和温度场输移扩散规律；利用所建模型对该热电厂移位方案的可行性进行了预测分析并提出了相应的应急工程措施。
In the view of heat diffusion problems raised by cooling water discharge from thermal power stations, the rate of temperature decay was introduced considering the effects of wind, water depth and water temperature on heat dissipation of free water surface to develop an one-dimensional numerical model for cooling water discharge into inland waters by using the software module ECO Lab. This model was applied to simulating the cooling water discharge process of a thermoelectric power plant in an industrial park after being calibrated and validated by observed water temperature data. The simulation agreed with measured data very well showing that the model and parameters have reflected the characteristics of flow and temperature distribution in the manually controlled plain river network. The established model was thereafter used to analyse the feasibility of a site shifting option of the thermal power plant whilst emergency measures were brought forward according to the prediction results.
出处
《上海环境科学》
CAS
CSCD
2008年第5期192-195,203,共5页
Shanghai Environmental Sciences
关键词
平原河网
生态模型试验室
温排水
热污染
综合衰减系数
一维数学模型
Plain river networks ECO Lab Cooling water discharge Thermal pollution General rate of decay One-dimensional numerical model
