As young chemical engineers you are responsible for preparing the preliminary design calculations for the pipeline of
Question:
As young chemical engineers you are responsible for preparing the preliminary design calculations for the pipeline of the last part of benzene production plant. In the plant, benzene is taken at a flow rate of ……kmol/h as the bottom product (ground level) of the purification column and is transported to final storage tank that is …… m away from the column. The bottom of the column, which is the start point of the pipeline, is being operated at 25oC and 1.1 atm. The storage tank, which is the end point of the pipeline, is pressurized with nitrogen at 2 atm due to safety regulations. Also, the entrance point to the storage tank is …. m above the ground level. You are expected to
- Estimate the optimum pipe diameter by using the approximate equation given below,
- Decide on the material of pipes (Hint:Check corrosivity from “Safety Data Sheet” for your chemical),
- Decide on type and number of valves and fittings,
- Calculate the power of the pump (h=0.75) required for the optimum pipe diameter,
You must present a detailed sample-hand calculation in your report as well as an explicit diagram of your pipeline with all fittings and valves, etc.
Group | Flow rate, kmol/h | Distance, m | Tank Entrance Height, m |
1 | 1040 | 450 | 35 |
2 | 1080 | 440 | 25 |
3 | 1150 | 420 | 30 |
4 | 1240 | 400 | 25 |
5 | 1350 | 380 | 35 |
6 | 1420 | 360 | 25 |
7 | 1500 | 340 | 35 |
8 | 1620 | 320 | 30 |
9 | 1730 | 310 | 35 |
10 | 1840 | 290 | 40 |
11 | 1940 | 270 | 45 |
Auxiliary equation for calculation of optimum pipe diameter
- For D³25 mm
- m is mass flow rate in kg/s, r is in kg/m3.
Financial Analysis with Microsoft Excel
ISBN: 978-1285432274
7th edition
Authors: Timothy R. Mayes, Todd M. Shank