Problem 3 (35 Points – Pumping power calculation in piping s…
Problem 3 (35 Points – Pumping power calculation in piping systems). A pump delivers kerosene to an elevated reservoir 8 m higher than the storage tank at ground level, as shown in Figure P.3. The tubing system connected to the pump is 20 m in length and 8 cm in diameter. As depicted in Figure P.3, the tubing system has one reentrant entrance (KL = 1.05), two 90° smooth flanged bends (KL = 0.3 each), a 1/4th closed gate valve (KL = 0.3), and a sharp exit (KL = 1.05). The volumetric flow rate is 0.03 m3/s. Consider a pump efficiency of 70% and that the kerosene properties are: ρ = 804 kg/m3, and
Read DetailsA radiograph of a transthoracic lateral projection reveals t…
A radiograph of a transthoracic lateral projection reveals that it is difficult to visualize the proximal humerus due to the ribs and lung markings. The following exposure factors were used: 75 kV, 30 mAs, 40-inch (102 cm) SID, grid, and suspended respiration. Which of the following changes will improve the visibility of the proximal humerus?
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