水电机组调峰服务的成本分析及实用补偿方法

首先分析了在电力系统运行实践中,调峰服务的内涵及其与备用服务的关系;进而研究了水电调峰成本组成,指出水电机组调峰成本应重点考虑其有功出力频繁调整引起效率损失的机会成本。参照当前国内辅助服务管理实际,并结合水电实际运行特点,给出了水电调峰补偿的测算方法。具体测算思路以水电机组日平均出力为基准,上下各浮动一定比例形成基本调峰区间,分析水电机组有功出力低于基本调峰区间下限后引起的额外水量损耗,进而将其折算为利润损失,作为水电调峰的补偿。文中给出了具体算例,验证了该方法的正确性和有效性。

Study on the Mathematical Model of Hydraulic Jump Atomization

An equation of atomization quantity from energy dissipation by hydraulic jump was derived from the dimensional analysis. By applying Gauss diffusion equation, the spray diffusion rule in valley was studied under the condition of continuous linear source and random wind direction.By considering the spray rain switching process, coagulation, condensation and evaporation of droplets, the air temperature, air relative humidity, spray density and the rainfall intensity in the lower reaches of the linear source were calculated. The 3 D numerical simulation fitted well with prototype monitoring. Finally, the prediction of atomization influence on environments for Xiangjiaba Hydropower Station was conducted.

高校水电指标定额管理应用探讨

以杭州某高校为例,分析了高校水电消耗以及现阶段水电使用中存在的问题,提出水电能耗的定额管理和有偿使用的方法以解决高校水电耗量高速增长的困局。增强高校师生员工的水电成本意识和节能意识,养成良好的用水用电习惯,达到提高高校后勤水电服务质量,节能增效的目的,确保学校的可持续发展。