Process Optimization. By Dr : Mona Ossman. What is optimization?. Optimization is derived from the Latin word “optimus”, the best . Optimization characterizes the activities involved to find “the best”.
Dr : Mona Ossman
1. Determining the best sites for plant location.
2. Routing tankers for the distribution of crude and refined products.
3. Sizing and layout of a pipeline.
4. Designing equipment and an entire plant.
5. Scheduling maintenance and equipment replacement.
6. Operating equipment, such as tubular reactors, columns, and absorbers.
7. Evaluating plant data to construct a model of a process.
8. Minimizing inventory charges.
9. Allocating resources or services among several processes.
10. Planning and scheduling construction.
1. At least one objective function to be optimized (profit function, cost function,etc.).
2. Equality constraints (equations).
3. Inequality constraints (inequalities).
The objective function represents such factors as profit, cost, energy, and yield in terms of the key variables of the process being analyzed. sometimes called the economic model.
2. The process model
The process model describe the interrelationships of the key variables whish is either
a- Equality constraints (equations).
b- Inequality constraints (inequalities).
First, let us define the variables.
What is the objective function?
Do any equality constraints evolve from the problem statement or from implicit assumptions?
If each plant runs 365 days per year, two equality constraints arise
Do any inequality constraints evolve from the problem statement or implicit assumptions?
or a limitation on production rate for each product at each plant, namely
To find the optimal t, we need to optimize (a) subject to constraints (b) to (g).