- Technical factors 
- Raw materials
- Waste products and by-products
- Equipment 
- Plant location
- Costs
- Time factor
- Process considerations

These variables also have further, more specific items within them.

Plant Design Comparison Variables

By weighing certain variables, one can narrow down differing plant processes that would yield the same product, instead of having to make multiple complete designs and comparing them afterwards.

Calvin College

A term encompassing the engineering behind the development of an industrial plant. There are many aspects to consider in plant design, from comparing different processes that yield the same product to the geographical location of the plant itself.

Plant Design (Chemical Engineering)

Peters, M. S., et al. Plant Design and Economics for Chemical Engineers. 4th ed., McGraw-Hill, 2003. 

Plant Design and Economics for Chemical Engineers: Fourth Edition

A diagram used by chemical engineers to ease understanding in plant processes. This diagram displays the sequence of equipment and unit operations in a plant, and details material quantities and energy transfers.

Flow Diagram

- Preliminary / quick-estimate designs
- Detailed-estimate designs
- Firm process designs / detailed designs

Plant Design Types

Comparing Plant Designs

Fogler, H. S. (2016). Elements of chemical reaction engineering. Pearson Education. 

Elements of Chemical Reaction Engineering Fifth Edition 

- Batch (BR)

Continuous-Flow:
- Continuous-Stirred Tank (CSTR)
- Plug-Flow (PFR)
- Fixed Bed / Packed Bed (PBR)

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