The following is a summary of Estimation of Equivalent Length for hydraulic design
1. Estimation of Equivalent Length
When the piping lay-out is not available, the equivalent length (Le) of the piping will be estimated based on the straight length (Ls) as follows:
-Process Area: 3.0 times Ls
-Common Area: 1.5 times Ls
-Offsite Area: 1.3 times Ls
Note that Ls [...]
From the category archives:
Engineering
The following is a summary of input data to be prepared before the hydraulic design
1. Operational Data
-Service for identification
-Fluid name for identification
-Flow rate(s) of liquid and/or vapor
-Temperature
-Pressure
-Physical Properties
a. Liquid service: Density,viscosity,vapor pressure,critical pressure,spgr@15oC
b. Vapor service: Density,viscosity,molecular weight,Cp/Cv,Z-factor
c. Two-phase flow:Densities and viscosities for both liquid and vapor, surface tension
2. Construction Data
-Line class
-Elevation at inlet and outlet [...]
WORK STEPS:
1. Pressure Balance
2. Prepare input data
3. Pipe inside diameter
4. Line sizing
5. Evaluate equivalent length
6. Evaluate pressure drop of piping components
7. Check pump suction line, when pump is provided
8. Determine pressure drop of control valve
9. Sample Hydraulic Calculation
What is Scope of Basic Engineering
1. Scope of work during the Basic Engineering stage is categorized into 2 cases by the nature of the contract as follows:
Case A: FEED (Front End Engineering Design) Project
Case B: EPC (Engineering Procurement Construction) Project
2. FEED Project
-To perform execution work of the “Basic Design Package” in accordance with the Design [...]
