1. A portion of an inclined 8-in (ID) pipe containing flowing water (p= 1.90 slugs/ft) has two pr...

1. A portion of an inclined 8-in (ID) pipe containing flowing water (p= 1.90 slugs/ft) has two pressure gages attached 2000 ft apart. the upstream gage above the datum. The flow rate is 1.55 cfs, and it is estimated that the friction Problem Set No. 6 reads 21.2 psig and is 50 ft above the datum; the downstream gage is 38 head for the pipe is 1.1 ft of H20 per 100 ft of pipe length; Q = 0. Using the energy equation, estimate the reading on the down-stream gage. 2. A small blower handles 1530 cubic foot per minute of air whose density is p = 0,073 lb/fts. The static and velocity heads are 6.45 and 0.48 in. wg (at 60°F). respectively. Local gravity acceleration is g = 31.95 fps?. a) Find the power input to the air from the blower. b) If the initial velocity is negligible, find the final velocity. 3. A large forced-draft fan is handling air at 14.7 psia, 110°F under a total head of 10.5 in wg (at 110°F). The power input to the fan is 300 hp and the fan is 75% efficient. Compute the volume of air handled each minute. Local gravity acceleration is g = 31.85 fps2. 4. An elevator, having a mass of 972 kg, is to be raised a distance of 14.5 km. Determine the minimum work required. 5. A piston having a diameter of 24 cm moves a distance of 60 cm when acted on by a gas pressure of 430 kPa. Determine the work done in Joules. 5. 1528 kL of water (temperature = 20°C) are elevated 26 m. Determine the work required in joules. Determine the kinetic energy possessed by a 1050 kg automobile when it is travelling at a speed of 82 km an hour. A diesel engine delivers 2860 kW of power when burning 615 kg of fuel per hour. The heating value of the fuel is 42,000 kJ/kg. Determine the total amount of the heat loss from the engine and the energy carried away by the exhaust gases per hour. In a domestic hot water heater determine the amount of heat to be added to 72 litres of water to raise the temperature from 9°C to 55°C. Determine the kilowatt-hours required. The enthalpy of air is increased by 139.5 kJ in a compressor. The rate of air flow is 16.7 kg/min. The power input is 48.2 kW. Determine the heat loss from the compressor per minute.