Distillation columns versus separators
Distillation columns versus separators. Both used for separating and purifying liquids, but they differ in terms of the type of separation they perform and the methods they use. A distillation column is a large, tall vessel used in the chemical and petrochemical industries to separate a mixture of liquids intoContinue Reading
What is a distillation column
What is a distillation column? A distillation column is a vertical vessel used in the distillation of liquid mixtures to separate the mixture into its individual components based on their boiling points. The mixture is heated to produce vapours, which are then cooled and condensed back into a liquid form.Continue Reading
Gas blowdown time calculation
Gas blowdown time calculation is used to estimate the time required to evacuate gas from a section of gas pipeline. In emergencies or during routine testing in oil and gas industry gas blowdown time is critical part pf safety consideration. objectively the gas pipeline is isolated by closing the mainlineContinue Reading
Barlow Equation for pipe internal pressure
Barlow equation named after Perter Barlow, an English mathematician and physicist, is used to relate the hoop stress in the pipe wall to the internal pressure, pipe diameter, and wall thickness. Hoop stress and Longitudinal stress Hoop stress is mainly the stress that occurs along the pipe’s circumference direction whenContinue Reading
Panhandle equation for gas pipelines
Panhandle equation was developed by Eastern Pipe line company for the calculation of gas flow in transmission lines. In 1940s Panhandle A Equation was developed. In 1912 Weymouth developed the general gas flow equation so this equation was developed at a later stage. Panhandle Equation Panhandle A Equation Panhandle AContinue Reading
Weymouth equation for flow rate calculation
Weymouth equation is used for gas pipeline systems, when large pipe diameters are involved the Weymouth equation can be used to calculate the flow rate. The equation is also employed for compressible gases and high pressure gases. Below are two different forms that the Weymouth equation can be written in.Continue Reading
Aude equation for pressure drop
Aude equation or T.R Aude equation is used in industry to calculated the pressure drop in pipelines. The equation is used for petroleum products transported in pipelines. It was name after the engineer who conducted experiments on pipelines sized between 8 in (203 mm) to 12 in (305 mm) inContinue Reading
How to use Shell-MIT Equation for pressure drop calculation
Shell-MIT equation also known as MIT Equation is used for calculations of pressure drop in heavy crude oil and heated liquid pipelines. The short article below will show the method used for this calculations. Step 1: Calculate the Reynolds number The Reynold number can be calculated from the equation below:Continue Reading
Using Miller equation to calculate the pressure drop due to friction
Miller equation also known as Benjamin Miller equation is mainly used to calculate the pressure drop due to friction in crude oil pipelines. The equation is different that other equations as it doesn’t take into account the pipe roughness. Calculating the pressure drop with Miller equation usually requires trial andContinue Reading
Using Fritzsche equation to calculate Air pressure drop in piping systems
Fritzsche equation used below to calculate the pressure drop in Air piping system. Various equations have been used to calculate the pressure drop in pipes. The purpose of this short article is show this equation to users. while some may not find it the most effective method to calculate pressureContinue Reading
