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This post was last edited by GGYYGG on 2017-11-15 at 10:19. In the Torch System Design Specification SH3009-2013, some parameters require manual lookup in tables, which leads to increased errors. I would like to ask experts for advice on how to solve this problem. Thank you! Some issues regarding the calculations in the new torch specifications: 1. To calculate the horizontal and vertical displacements of the flame center under the effect of wind speed, it is necessary to refer to tables; how can accuracy be ensured, and what values should be used when the numbers exceed the limits specified in the tables? As shown in the tables below: Figure 9.3.4-1, 9.3.4-2 coefficient Er1.3/DLf^2 = 0.0004; Figure 9.3.4-1, 9.3.4-2 coefficient Lf/3 = 10.243. Wind-induced horizontal displacement of the flame Xc? Refer to Figure 9.3.4-1: Vertical displacement of wind-induced flame Yc? Refer to Figure 9.3.4-2: 2. What should be done if there is a significant difference in the calculated torch heights according to the new standards and the old standards? 3. When calculating a single-flow horizontal liquid separation tank, the amount of condensed liquid stored, ql, is a variable; online sources generally suggest using 1/3 of the tank’s volume for this purpose. As a result, the discharge volume is very small when it is low, and very large when it is high (compared to older standards) ； Is the drag coefficient of droplets in a gas a constant or a variable, and how is it determined? 4. What are the ultimate dimensions (minimum and maximum dimensions) of horizontal liquid separation tanks and horizontal water seal tanks? For example, how is the displacement calculated in the following case: volumetric flow rate qv = 1962136 Nm3/h, mass flow rate qm = 1981398 Kg/h, average molecular weight M = 22.63, adiabatic index k = 1.35, temperature T = 40°C, dynamic viscosity ν = 13.31 mm2/s, and absolute gas pressure P = 130 Kpa(a)