FLOW RATE REPORT - Summary This experiment sought to...

Info icon This preview shows pages 1–2. Sign up to view the full content.

Summary This experiment sought to investigate the effect of the rate of flow and the speed on the head, efficiency and the requirement of brake horsepower of a centrifugal pump. Three experimental trials were carried out separately. Different flow rates and speeds were used to measure data. Various relevant equations were used to calculate the values of the pump head (h p ), shaft work (BHP), net positive section head (NPSH) and the efficiency. It was clear from the experiment that at different pump speeds, the horsepower of the break decreases as the rate of flow increase. This means there was an inverse propotion between these variables. Additionally, it was also observed that an increase in the rate of flow increases efficiency upto a certain point when efficiency begins to decline. This point was at 80% rate of flow. It was even more clear that there was a gradual increase in the shaft work as the rate of flow increases. This means there was a direct correlation. However, at 1750 rpm, there was a rapid drop in the net positive suction head as the flow rate increases. In conclusion, a forward flow was not poosible when the pump was operated in the reverse direction regardless of the flow rate. Background and Methods Centrifugal Pump System Description For years, the most common type of kinetic pumps are centrifugal pumps, and are used most often in applications with moderate-to-high flow and low head. They play a key role in chemical processing industries as they are considered to be more economical both in owning operating and even maintaining them. The process engineer usually is responsible for outlining the process requirements of the pump system. These includes the physical conditions of the system, the flow
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern