Study on the Evaporation Suppression Efficiency and Optimal Diameter of Plain Reservoirs Covered by EPS Floating Balls in Arid Areas

Current research on the evaporation inhibition effect of polyethylene (PE) floats has been relatively comprehensive, and cost is high when it arranged in remote mountainous areas. In order to find a more economical anti-evaporation material, five kinds solid expanded polystyrene (EPS) floating balls with different diameters 10 mm, 40 80 120 mm 150 were selected study suppression efficiency (ESE) EPS reservoir water surfaces arid The outdoor evaporator test wind wave area carried out. Combined various meteorological data, rates during non-freezing period calculated. durability, seepage prevention, resistance, frost aging resistance other properties observed under climatic conditions. test, relationship between diameter ESE was not single function. highest, at 76.31%. area, lowest, 34.79%, ESEs four above 85% positively related balls. further improved selection scheme for balls, provided reference practical application future water-saving projects enriched content plain reservoirs