How To Judge The Cooling Effect Of A Closed-Circuit Cooling Tower?

: It is an important indicator for evaluating the performance of a closed-circuit cooling tower. It refers to the heat load that the cooling tower can handle per unit time, usually measured in kilowatts (kW) or 10,000 kilowatts (10,000kW). A larger cooling capacity means the cooling tower can handle more heat, with a relatively better cooling effect.

: It refers to the ability of the cooling tower to effectively remove heat from the circulating water, generally measured as a percentage. A higher cooling efficiency indicates that the cooling tower can transfer heat to the environment more effectively, with a more significant cooling effect.

: It equals the temperature difference between the outlet water temperature of the cooling tower and the wet bulb temperature of the air, indicating the℃to which the outlet water temperature approaches the wet bulb temperature. A smaller approach theoretically means stronger cooling capacity, but economic factors and equipment specifications need to be considered in actual selection.

: It refers to the temperature difference between the inlet and outlet of the cooling water, and its magnitude determines the cooling effect of the cooling water. Usually, the cooling water temperature difference ranges from 5℃ to 10℃, and a larger temperature difference indicates a better cooling effect.

: During the operation of the cooling tower, compare the actual outlet temperature (T1) of the cooling tower with the designed outlet temperature (T0). If T1 is less than or equal to T0, the cooling performance of the closed-circuit cooling tower meets or exceeds the design value, with a good cooling effect.

: Through the characteristic curve evaluation method, calculate the ratio of the actual cooling water flow to the designed cooling water flow (a=L/L1 × 100%). When the a value is greater than 95%, it indicates that the designed temperature of the closed-circuit cooling tower meets the design requirements, with high cooling efficiency.

: It is a key factor affecting the cooling range of the closed-circuit cooling tower. The ultimate cooling effect of the cooling tower is usually close to the wet bulb temperature, so a lower wet bulb temperature leads to a better theoretical cooling effect of the cooling tower.

: On sunny days, when the temperature difference between the dry bulb temperature and the wet bulb temperature is large, the cooling capacity is usually better because the air is relatively dry, which is conducive to evaporative heat dissipation of water. On the contrary, on rainy days, the temperature difference between the two is small, and the cooling capacity will decrease significantly.

: The circulating water of the closed-circuit cooling tower needs to be treated to ensure qualified water quality. Good water quality treatment can reduce the formation of scale and dirt, improve heat exchange efficiency, and thereby enhance the cooling effect.

: Regularly cleaning the cooling tower, replacing parts and other maintenance work can maintain its good operating state and cooling effect. Neglecting maintenance may lead to a decline in the performance of the cooling tower, or even malfunctions.