GATE Chemical Engineering Exam > GATE Chemical Engineering Videos > Crash Course for GATE Chemical Engineering > Contactors - Selection of Pumps - 1
Contactors - Selection of Pumps - 1 Video Lecture | Crash Course for GATE Chemical Engineering
FAQs on Contactors - Selection of Pumps - 1 Video Lecture - Crash Course for GATE Chemical Engineering
| 1. What are the key factors to consider when selecting a pump for chemical processes? |  |
Ans. When selecting a pump for chemical processes, key factors to consider include the type of fluid being pumped, viscosity, temperature, and pressure requirements. Additionally, the pump's material compatibility with the fluid, flow rate, and efficiency are also crucial. The operational environment, such as the presence of hazardous materials or explosive atmospheres, must be evaluated to ensure safety and compliance with regulations.
| 2. What types of pumps are commonly used in the chemical industry? | |
Ans. Common types of pumps used in the chemical industry include centrifugal pumps, positive displacement pumps, diaphragm pumps, and peristaltic pumps. Centrifugal pumps are widely used for low-viscosity fluids, while positive displacement pumps are preferred for high-viscosity or shear-sensitive fluids. Diaphragm pumps are ideal for handling corrosive or abrasive fluids, and peristaltic pumps are used for precise dosing applications.
| 3. How does the efficiency of a pump impact operational costs in chemical engineering? | |
Ans. The efficiency of a pump significantly impacts operational costs because higher efficiency means less energy consumption for the same flow rate. This reduces electricity costs and minimizes the wear and tear on the pump, leading to lower maintenance and replacement costs. It's essential to select a pump with a high-efficiency rating to optimize overall operational expenses in chemical processing.
| 4. What is the importance of pump maintenance in chemical operations? | |
Ans. Pump maintenance is crucial in chemical operations to ensure reliability, efficiency, and longevity of the equipment. Regular maintenance helps prevent breakdowns, reduces the risk of leaks and spills, and maintains optimal performance. Scheduled inspections, cleaning, lubrication, and replacement of worn parts can significantly extend the life of the pump and enhance safety in the workplace.
| 5. How do system head and fluid properties affect pump selection? | |
Ans. System head, which refers to the total height that the pump must overcome to move the fluid, directly influences pump selection. Fluid properties, such as density and viscosity, also affect the required pump capacity and type. A thorough analysis of system head and fluid characteristics is essential to select a pump that can efficiently handle the specific requirements of the chemical process while ensuring optimal performance and energy use.
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Sep 10, 2025
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