The flow system as shown in the Figure, the centrifugal pump(3500 R.P.M.) is delivering water at 100 gal/min and 70 °F into a boiler operating at a pressure of 35 psig. The water levels in the feed tank and boiler are constant. Because corrosion is expected to be negligible, select the suitable material to be used for this purpose. Assume frictional pressure drop of 5 psi across the heat exchanger. The following data are available:
(a) For NPSH required:
Total Head (ft.) 15 18 20 25 30 40
Flow rate, (gal/min) 25 30 85 105 120 155
(b) Use the physical properties of water from textbooks.
1. The suction and discharge pipe sizes
2. The head the pump must deliver
3. The break horsepower
4. The electric-motor horsepower
5. Draw the required curves
6. If cavitation will occur in the pump
7. Complete the following summary Tables (one variables and another for fittings):
Variable Suction Discharge
Flow rate (gal/min)
Density, (lb/ft3)
Pipe ID (ft)
Pipe Length, (ft)
Velocity (ft/s)
Viscosity (lb/ft.s)
Reynolds Number
Relative Roughness
Friction Factor, 4f

  1. 👍 0
  2. 👎 0
  3. 👁 193

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    Block B in the figure(Figure 1) rests on a surface for which the static and kinetic coefficients of friction are 0.65 and 0.40, respectively. The ropes are massless.What is the maximum mass of block A for which the system is in

  2. thermodynamics

    if a pump discharges 75 gpm of water whose specific weight is 61.5 lb/ft^3(g=31.95fps^2). find a) the mass flow rate in lb/min, and b) and total time required to fill a vertical cylinder tank 10ft in diameter and 12ft high.

  3. Thermodynamics

    A centrifugal pump compresses 3000 liters/min of water from 98 KPa to 300KPa. the inlet and outlet temp are 25°C. The inlet and discharge pipe are on the same level but the diameter of the inlet piping is 15cm whereas that of the

  4. Physics

    A pump is required to lift a mass of 750kg of water per minute from a well of depth 13.2m and eject it with a speed of 17.4m/s. A) How much work is done per minute in lifting the water? B) How much in giving the water the kinetic

  1. calculus

    A circular swimming pool has a diameter of 14 m, the sides are 4 m high, and the depth of the water is 3.5 m. (The acceleration due to gravity is 9.8 and the density of water is 1000 .) How much work (in Joules) is required to:

  2. physics

    Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in figure below, the pressure is P1 = 1.75X104 Pa and the pipe diameter is 6.00 cm. At another point y = 0.250 m higher, the pressure is P2 =

  3. physics - another thermo problem

    A bicycle pump is a cylinder 20 cm long and 3.0 cm in diameter. The pump contains air at 25.0 C and 1.0 atm. If the outlet at the base of the pump is blocked and the handle is pushed in very quickly, compressing the air to half

  4. Physics

    A house with its own well has a pump in the basement with an output pipe of inner radius 6.4 mm. Assume that the pump can maintain a gauge pressure of 420 kPa in the output pipe. A showerhead on the second floor (7.5 m above the

  1. thermodynamics

    2. If a pump discharges 284 liters per minute of water whose density is 985 kg/m3 . Find (a) mass flow rate in kg/min; (b) the total time required to fill a vertical cylindrical tank 3.05 m in diameter, and 305 m high. Note: m = Q

  2. Physics

    2. A pool has an area A = 50 m2 and depth h = 2.5 m. The pool is filled with water to the maximum height. An electrical pump is used to empty the pool. There are two pipes coming out the pump: one is submerged into water has a

  3. Physics

    Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.70 105 Pa and the pipe radius is 2.50 cm. At the higher point located at y = 2.50 m, the pressure is

  4. Chemistry

    a sample of an ionic compound is dissolved in water and the water gets colder. what is acting as the system?what is acting as the surroundings? does the heat flow from the system to the surroundings or from the surroundings to the

You can view more similar questions or ask a new question.