Calculation of liquid chlorine storage tank leakage rate

The leakage rate of liquid chlorine can be calculated using the leakage formula or Bernoulli’s equation. Here are two common calculation methods: Leakage formula: The leakage rate of liquid chlorine can be estimated using the Torpex formula or the API 521 formula. These formulas are based on the diameter of the leakage orifice, the density of liquid chlorine, the pressure of liquid chlorine, and the flow properties of liquid chlorine. The specific forms of the formulas for calculating leakage are as follows: Torpex formula: Q = Cd * A * √(2 * ΔP * ρ / ρv) API 521 formula: Q = Cd * A * √(2 * ΔP * ρ). Where: Q = leakage rate (unit: kg/s or g/s); Cd = leakage coefficient (dependent on the shape of the leakage opening and the flow conditions); A = cross-sectional area of the leakage opening (unit: m^2 or cm^2); ΔP = pressure difference before and after leakage (unit: Pa or psi); ρ = density of liquid chlorine (unit: kg/m^3 or g/cm^3); ρv = density of the vapor of liquid chlorine (unit: kg/m^3 or g/cm^3). Bernoulli’s equation: When liquid chlorine leaks, Bernoulli’s equation can be used to calculate the leakage rate. Bernoulli’s equation expresses the relationship between a fluid’s kinetic energy, pressure, and gravitational potential energy. According to Bernoulli’s equation, the leakage rate can be calculated using the following formula: Q = Cd * A * √(2 * ΔP / ρ), where Q, Cd, A, and ΔP have the same meanings as in the aforementioned leakage formula. In practical applications, in order to calculate the leakage rate of liquid chlorine more accurately, other factors also need to be taken into account, such as the shape of the orifice, the flow conditions around the orifice, and the temperature of the liquid chlorine. Based on the actual conditions and data, select an appropriate calculation method, and ensure that the correct physical property parameters and units are used in the calculations.