Page 27 - Coulson Richardson's Chemical Engineering Vol.6 Chemical Engineering Design 4th Edition

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The organisation of chemical process design is discussed in more detail by Rase and
Barrow (1964) and Baasel (1974). CHEMICAL ENGINEERING
Some of the larger chemical manufacturing companies have their own project design
organisations and carry out the whole project design and engineering, and possibly
construction, within their own organisation. More usually the design and construction, and
possibly assistance with start-up, is entrusted to one of the international contracting firms.
The operating company will often provide the “know-how” for the process, and will
work closely with the contractor throughout all stages of the project.

1.5. PROJECT DOCUMENTATION

As shown in Figure 1.5 and described in Section 1.4, the design and engineering of
a chemical process requires the co-operation of many specialist groups. Effective co-
operation depends on effective communications, and all design organisations have formal
procedures for handling project information and documentation. The project documen-
tation will include:
1. General correspondence within the design group and with:
government departments
equipment vendors
site personnel
the client
2. Calculation sheets design calculations
costing
computer print-out
3. Drawings flow-sheets
piping and instrumentation diagrams
layout diagrams
plot/site plans
equipment details
piping diagrams
architectural drawings
design sketches
4. Specification sheets for equipment, such as:
heat exchangers
pumps
5. Purchase orders quotations
invoices
All documents should be assigned a code number for easy cross referencing, filing and
retrieval.
Calculation sheets

The design engineer should develop the habit of setting out calculations so that they can
be easily understood and checked by others. It is good practice to include on calculation