Chapter 15 - Part A

Figure 15.1 - Types of pump impellers. Top left: closed or shrouded radial. Top right: open or unshrouded radial. Bottom left: mixed flow. Bottom right: propeller. (Worthington Pump Co.) (118,553 bytes)Figure 15.2 - Radial-flow centrifugal pump with volute casing. (49,954 bytes)Figure 15.3 - (a) Typical centrifugal pump installation. (b) Typical axial-flow pump installation. (23,705 bytes)Figure 15.4 - Deep-well multistage mixed-flow turbine pump. (Courtesy of Byron Jackson Company) (75,496 bytes)Figure 15.5 - Head developed by a pump. In this case ps/γ is negative. (24,539 bytes)
Figure 15.6 - Characteristic curves for a typical mixed-flow centrifugal pump. (37,180 bytes)Figure 15.7 - Characteristic curves for a typical axial-flow pump. (37,646 bytes)Figure 15.8 - Characteristic performance curves of a typical mixed-flow centrifugal pump (Fig. 15.6) at various speeds of rotation with contours of equal efficiency. (47,586 bytes)Figure 15.9 - Characteristic performance curves with contours of equal efficiency for typical homologous mixed-flow centrifugal pumps having impellers of different size. D1 is the same pump as in Fig. 15.6. (40,158 bytes)Figure 15.10 - Graphical method for finding the operating point of a pump and pipeline. (26,529 bytes)
Figure 15.11 - Optimum efficiency and typical values of Φe for water pumps as a function of specific speed. (50,513 bytes)Figure 15.12 - Approximate values of critical cavitation parameter sc as a function of specific speed. (52,665 bytes)Figure 15.13 - Recommended limiting heads for single-stage, single-suction pumps as a function of specific speed and suction lift, at sea level with water temperature of 80F. (57,732 bytes)  

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