Why a water fine filter can result in problems
The system:
Water that is used for washing high-purity products.
Failure:
Too many particles percent in the water
Possible solution:
Add a filter. The manager requested to add 10 nm filter to be in the sequence to the 100nm filter. It is expected that the proposed change will improve a particle performance
Real problem:
To define what is the real risk, create a model of the failure and generate a mitigation/failure prevention
Operational Effectiveness – OE
Effective
Ineffective
OE 1.1
Operational Perfectness - OP
Basic functions
Components
Supersystems
OP 0.33
Water | 10 |
Filter 100nm | 6 6 |
H2O agglomerates | 6 24 |
H2O Molecules | 6 21 |
Particles | 4 |
Filter 10nm | 2 24 |
Fittings and all the parts of the system | 2 8 |
Pump | 2 |
Molecules of water create agglomerates having a size of tens mn. The number of free H2O molecules defines the water activity. The fine filter destroys the agglomerates and increases the number of free molecules H2O that increases the water activity - high interaction rate, high evaporation rate, etc. The elevated activity of the water may result in the dissolution and precipitation of new defects and particles. To ensure successful performance 40 Inventive principles should be enrolled to find a solution to the problem
If | If I use a very fine filter |
|---|---|
Then | The purity of the water will be improved - the water will be pure from particles |
But | The agglomerates of the water will be destroyed and the activity on the water will be increased |
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