A piping system is conveying 10 ft3/s (0.28 m3/s) of ethanol. At a particular cross-section of...

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A piping system is conveying 10 ft3/s (0.28 m3/s) of ethanol. At a particular cross-section of the system, section 1, the pipe diameter is 12 in (0.30 m), the pressure is 18 lb/in2 (124 kPa), and the elevation is 140 ft. (42.7 m). At another cross-section, further downstream, section 2, the pipe diameter is 8 in (0.20 m), and the elevation is 106 ft. (32.3 m). If there is a head- loss of 9 ft. (2.74 m) between these sections due to pipe friction, what is the pressure at section 2? Assume that the specific gravity of ethanol is 0.79. A piping system is conveying 10 ft3/s (0.28 m3/s) of ethanol. At a particular cross-section of the system, section 1, the pipe diameter is 12 in (0.30 m), the pressure is 18 lb/in2 (124 kPa), and the elevation is 140 ft. (42.7 m). At another cross-section, further downstream, section 2, the pipe diameter is 8 in (0.20 m), and the elevation is 106 ft. (32.3 m). If there is a head- loss of 9 ft. (2.74 m) between these sections due to pipe friction, what is the pressure at section 2? Assume that the specific gravity of ethanol is 0.79.

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