**Disclaimer:** This is just a study outline. Not to be substituted with real textbooks. If there are any data errors, or areas for improvement, comment down below so I can edit it. This is for personal purpose but I love sharing knowledge. Happy studying! Ganbatte!

**Plant Design Requirements**

- Process Evaluation
- Reliability
- Metallurgy
- Safety o Control

**Capital Estimation**– evaluation of the plant project**Total Capital Investment**= Fixed Capital Investment + Working Capital [**TCI = FCI + WC ]**

- Working Capital – 10% – 20% of the capital investment
*(Note: If the percentage is not given, use 15% as default)*

**COST INDEX**

**Chemical Engineering Plant Cost Index (CEPCI)**– use this for*CHEMICAL PLANTS***Marshal and Swift Index**– use for*CHEMICAL EQUIPMENT***Nelson- Farrar Index–**use for*PETROLEUM REFINERY*

**[TABBING GUIDE: Check Page 9 -13, COST INDEX TABLE , Perry’s ChE Handbook 8th Edition]**

**SOLVING PROBLEM GUIDE:**

*Example, if you wish to find the diameter of the tank (Dt) you need to know the volume first (V) and so on.*

- Volume (V)
- Diameter of Tank (Dt)
- Diameter of the impeller (Di)
- Reynold Number of the Impeller (NRT,I)
- Power Number (Np)
- Power Requirement (P)

**[TABBING GUIDE: Check Page 6-35, Reynold’s and Power Number Diagram Perry’s ChE Handbook 8th Edition]**

**SAMPLE PROBLEMS:**

Note: Answers available in the next page.

- It is the ability to resist deformation or deflection
- Which of the following spot-examined type has the lowest joint efficiency factor?
- It is the recommended cost index for cost estimation of chemical plants.
- The cost of handling of materials is considered under the
**_**. - How much is the estimated working capital if the total investment is 2.5M?
- Estimate the year 1992 cost of an equipment if its 500-L equivalent costs Php3.5 M.
- Estimate the cost of 2000-L equipment if its 500-L equivalent costs Php 3.5M
- Calculate the wall thickness of a cylindrical pressure vessel with a radius of 30 inches and internal operating pressure of 200 psig. The allowable stress of the material is 10,000 psi and the joint efficiency is 0.85.
- Calculate the head thickness of the pressure vessel in #8 for a 2:1 ellipsoidal head.
- Calculate the wall thickness of the pressure vessel in #8 if it was spherical instead.
- Calculate the tank diameter of a CSTR which has a liquid volume of 300 m3?
- Calculate the impeller diameter of the CSTR given in #11?
- What is the impeller Reynolds number of a mixing tank (Di= 1.75-m) containing hydrogen peroxide with an agitation speed of 20 rpm? (µ=1.245 cP)
- What is the power number for the given mixing tank condition in #13?
- How much is the power requirement for the mixing tank in #13?

**ANSWERS AVAILABLE IN THE NEXT PAGE!**