DefinePK

Abstract

Thermal pollution raises the water source temperature and thus cause a change in physical, chemical and biochemical properties of water. It has a major impact on the aquatic life and disturb the environment. A model with 18m long and 2m was constructed to study Effect of The distance between the propeller and diffuser outlet on dilution. Experimental test was carried on for three different Reynolds number Ratios Rer (0.38, 0.2, and 0.13). It was found that increasing propeller distance from (L= 0.1) to (L= 0.5), the plume center temperature ratios were changed by 3.1%, 2.74%, 0%, temperature ratios at the end of measurements were increased by 43.4%, 73.33%, 61.11%. Temperature difference distribution through the model was increased. Increasing distance of propeller clogging single port submerged diffuser reduce dilution of temperature.