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THE COMPONENTS OF TOTAL HEAD - …
THE COMPONENTS OF TOTAL HEAD This chapter will introduce some of the terminology used in pumping systems. The COMPONENTS of TOTAL Head will be examined one by one. Some of the more difficult to determine COMPONENTS , such as equipment and friction head, will be examined in more detail. I hope this will help get our heads together. THE COMPONENTS OF TOTAL HEAD TOTAL Head is the measure of a pump's ability to push fluids through a system. TOTAL Head is proportional to the difference in pressure at the discharge vs. the suction of the pump. It is more useful to use the difference in pressure vs. the discharge pressure as a principal characteristic since this makes it independent of the pressure level at the pump suction and therefore independent of a particular system configuration. For this reason, the TOTAL Head is used as the Y-axis coordinate on all pump performance curves (see Figure 4-3).
THE COMPONENTS OF TOTAL HEAD 3 • 3 The Suction Static head in these two cases is: ∆H SS =z 1 +H 1−z S [3-3] Figure 3-2B presents a situation where the pump has to lift the fluid up to the pump
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