In the example described, the selected variables can be listed as
Temperature and pressure of the surrounding fluid,
Time,
Initial temperature of apple,
Initial temperature of medium, and
Mass of water
In many cases we need to know
Processing time and conditions,
T=f (variables),
Mainly in order to decide how long
To process the product.
What is purpose of the flow diagram?
To visualize the complete process more easily.
The level of pictorial information on a flow diagram can be detailed
After developing the flow diagram, should be analyzed in order to understand its dynamics
Based on the fundamentals