水资源的日益短缺影响着人类的生存,制约了人类世界的发展。露水取水作为一种无污染、高效节能的取水方式,其可行性及优越性很早就被人们所发掘。由于海湾地区有着相对较高的温度和湿度,因此被选为露水取水研究的主要地区。基于海湾地区的特定条件,利用工程方程求解软件EES,首先确定了在气象条件为湿度RH=90%、风速v=8 m/s,冷凝器截面面积A=100 m²时冷凝器会产生最大冷凝率;然后在供应最少电力条件下确定出了最优冷凝器尺寸为直径D=1 m、 传热系数U=1.6、弯部数量N=50和表面面积S=1 800 m²。该研究成果对海湾地区冷凝器露水取水有一定的参考意义。

Growing shortage of water resources threatens the survival and development of mankind. Dew water collection, as an approach of water collection with high efficiency and energy saving performance yet no pollution, has been used for a long time due to its feasibility and superiority. Gulf region is a main study area for dew water collection because of its high temperature and humidity. According to features of the gulf region and in association with EES(engineering equation solver) software, the maximum condensation rate is determined under meteorological conditions of relative humidity(RH) 90%, wind speed (v) 8 m/s, and condenser’s sectional area (A) 100 m². The optimum values of parameters of condenser under minimum power supply are also obtained as follows: condenser diameter (D) 1 m, heat transfer coefficient (U) 1.6, elbow number (N) 50, and superficial area (S) 1 800 m². The research results could offer reference for dew water collection by condenser in Gulf region.