Plant and Process Design Flashcards
What is sustainable development according to the FE Reference Handbook?
Sustainable development seeks to meet human needs for natural resources, industrial products, energy, food, transportation, shelter, and effective waste management. while conserving and protecting the environment.
What is the relationship between the NPSH of the centrifugal pump and the flow rate?
As the NPSH of the pump increases, the flow rate increases.
What are common characteristics of centrifugal pumps?
-Inexpensive
-Simple to construct
-Available in a variety of materials with low maintenance costs
-Offer steady delivery and take up little floor space
-Operate at high speeds and can be driven by electric motors.
-Not self-priming
What is the relationship between the pump efficiency of centrifugal pumps and flow rate?
Pump efficiency increases rapidly with increasing flow rate and drops off above certain high flow rates.
What is the relationship between the pump performance of centrifugal pumps and viscosity?
Their performance drops rapidly as viscosity increases.
What type of actions reduce pollution in process development and design?
- Minimizing the number of process steps
- Designing for Operability
- Segregating process streams where possible
What happens if process selectivity is minimized?
The percentage of undesirable products will increase, which creates waste and may pollute the environment.
