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Chemical Engineering vocabulary · Scale-Up and Process Development

Design basis

Meaning in chemical engineering, with examples

nounCommon term

In chemical engineering, design basis means: The agreed set of data and assumptions that a plant design is based on, such as capacity, feed and product specifications, site conditions and design margins.

In Turkish: tasarım esasları, tasarım temeli, tasarım kriterleri

How it is used

One of the first documents in a project, often called the Basis of Design (BoD). Engineers agree, freeze, revise and refer back to the design basis; changes to it later in a project are costly.

Example sentences

  1. The design basis assumes a summer cooling water temperature of 32 °C.

  2. Adding a second feedstock now would change the design basis for the whole unit.

Common collocations

  • basis of design
  • freeze the design basis
  • design basis document
  • design case
  • scale upTo take a process that works in the lab or a pilot plant and design it to run at a much larger, commercial size.
  • pilot plantA small version of a planned production plant, between laboratory and full scale, used to test the process, collect design data and make sample product.
  • process simulationUsing software to build a computer model of a process, with its equipment, streams and thermodynamics, in order to calculate balances, size equipment and test changes.
  • throughputThe amount of material that a unit or plant processes in a given time, for example tonnes of feed per day.
  • process flow diagramA drawing that shows the main equipment of a plant, how the streams connect them and the key operating data such as flows, temperatures and pressures.

More terms: Scale-Up and Process Development

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