Chapter 5 Equipment List

The equipment list is a compilation of all the equipment that costs more than a pump, together with enough information about each piece for its cost to be estimated.
The list is developed directlyfrom the detailed flow sheet. Each piece of equipment shown on the flow sheet should appear on the equipment list. The symbols assigned to each piece of equipment are included on the equipment list toprovide a cross-reference between the list and the detailed flow sheet.
To determine the cost of purchasing and installing each piece of equipment, the following major factors must be specified:1. Specific type of equipment
2. Size and / or capacity
3. Material of construction
4. Operating pressure
5. Maximum temperature if the equipment is to run above the ambient temperature.
6.Minimum temperature if the equipment is to be refrigerated.
7. Whether insulation is required.
8. Corrosion allowances if they are large.
9. Special features such as jackets on heat exchangers orspecial conditions such as the burying of a storage tank.

A typical entry in the equipment list appears below:
V-03 Horizontal Methanol Storage Tank. 20,000 gal, 11 ft diameter, 31 ft long, carbonsteel, 10 psig, no insulation

In metric units this is:
V-03 Horizontal Methanol Storage Tank. 76 m3, 3.35 m diameter, 9.5 m long, carbon steel, 1.8 kg/cm2, no insulation.

The V-03 is the equipmentnumber. The type of equipment is a horizontal storage tank. It is used to store methanol. The capacity is 20,000 gal (76 m3> and the size is 11 ft (3.35 m) in diameter by 31 ft (9.5 m) long.
The tankis to be made of carbon steel and will not be insulated. It should be built to withstand a pressure of 10 psig (1.8 kg / cm2). Any vessel with a rating of under 15 psig (2 kg/cm2) is not considered apressure vessel.
No information is given on temperature or corrosion allowances because neither of these factors presents any special problem.
The rate of corrosion is small enough that no...