【摘要】 探讨了利用风洞模拟实验研究电厂直接空冷系统风效应应满足的相似准则和实验方法 ,提出了刻画风对空冷凝器效率影响程度的回流率概念 ;最后 ,通过一个风洞模拟实验结果的实例说明了外界风速和风向对该具体布置的电厂空冷系统效率的影响规律及在对采用直接空冷系统的电厂进行初步设计前期 ,结合当地风气象资料 ,进行适当的风洞模拟的重要意义更多还原

【Abstract】 The similarity criteria to be met during the wind tunnel simulation based experimental study of the wind effects on a directly air cooled system of a power plant are probed along with a description of the relevant experimental methods. The conception of recirculation ratio is proposed to describe the wind effect on the efficiency of an air cooled condenser. Furthermore, by citing the wind tunnel simulation test results of a specific case the authors explained the impact of outside wind speed and direction on the efficiency of a specifically configured air cooled system of a power plant. In this connection it is of vital importance to conduct a pertinent wind tunnel simulation in the light of local meteorological data during the preliminary design of the directly air cooled system of a power plant.更多还原