Assignment No. 1 [Grup 8]
Figure below shows a portion of a hydraulic circuit. The pressure
point B must be 200 psig when the volume flow rate is 60 gal/min.
The hydraulic fluid has a specific gravity of 0,90 and a dynamic
viscosity of 6,0x10-5 lb-s/ft. The total length of pipe between A and
B is 50 ft. The elbow are standard. Calculate the pressure at the
outlet of the pump at A.
Assignment No. 2 [Grup 9]
Figure below depicts gasoline flowing from storage tank into a
truck for transport. The gasoline has a specific gravity of 0.68 and
temperature is 25 oC. Determine the required depth h in the tank
to produce a flow of 1500 L/min into the truck. Since the pipes are
short, neglect the energy losses due to pipe friction but do
consider minor losses.
Assignment No. 3 [Grup 11]
In water pollution control project, the
polluted water is pump vertically upward
80 ft and then sprayed into the air to
increase the oxygen content in the
water and to evaporate volatile
materials. The system is sketched in
figure below. The pollution water has a
specific weight of 64.0 lbf/ft3 and a
dynamic viscosity of 4.0x10-5 lb-s/ft .
The flow rate is 0.50 ft3 /s The pressure
at inlet to the pump is 3.50 psi below
atmospheric pressure. The total length
of discharged pipe is 82 ft. The nozzle
has a resistance coefficient of 32.6
based on the velocity head in the
discharged pipe. Compute the power
delivered by the pump to the fluid
Assignment No. 4 [Grup 12]
For the system shown below kerosene (sg=0,82) at 20oC is to be
forced from tank A to reservoir B by increasing the pressure in the
sealed tank A above the kerosene. The total length of 2-in
Schedule 40 steel pipe is 38 m. The elbow is standard. Calculate
the required pressure in tank A to cause a flow rate of 435 L/min.
Assignment No. 5 [Grup 1]
Kerosene at 25 oC is flowing in the system shown below. The total
length of 2-in Type K copper tubing is 30 m. The two 90 bends
have a radius of 300 mm. Calculate the volume rate into tank B if
a pressure of 150 kPa is maintain above the kerosene in tank A.
Assignment No. 6 [Grup 6]
Figure below depicts a pipe delivering water at 15 oC from main
line to a factory. The pressure at the main is 415 kPa. Compute
the maximum allowable flow rate if the pressure at the factory
must be no less than 200 kPa.
Assignment No. 7 [Grup 7]
Turpentine at 77o F is flowing from A to B in a 3-in coated ductile
iron pipe. Point B is 20 ft higher than A and the total length of pipe
is 60 ft. Two 90o long radius elbows are installed between A and B
Calculate the volume flow rate of turpentine if the pressure at A is
120 psig and the pressure at B is 105 psig.
Assignment No. 8 [Grup 10]
Oil with specific gravity of 0.93 and dynamic viscosity of 9.5x10-3
Pa.s is flowing into the open tank shown below. The total length of
2-in tubing is 30 m. For 4-in tubing the total length is 100 m. The
elbows are standard. Determine the volume rate into the tank if
the pressure at point A is 175 kPa.
Assignment No. 9 [Grup 2]
The tank shown below is to be drained to a sewer. Determine the
size of new Schedule 40 steel pipe which will carry at least 400
gal/min of water at 80 oF through the system shown. The total
length of pipe is 75 ft.
Assignment No. 10 [Grup 3]
Figure below shows a pipe delivering water to putting green on a
golf course. The pressure in the main is at 80 psig and it is
necessary to maintain a minimum of 60 psig at point B to
adequate supply a sprinkler system. Specify the required size
Sachedule 40 steel pipe to supply 0.5- ft3 /s of water at 60o F.
Assignment No. 11 [Grup 4]
Determine the required size of new Schedule 80 steel pipe to
carry water at 160o F with a maximum pressure drop of 10 psi per
1000 ft when the flow rate is 0.5 ft3 /s.
Assignment No. 12 [Grup 5]
What size of standard type K tube is required to transfer 0.60 m3
/s of water at 80 C from heater where the pressure is 150 kPa to
an open tank ? The water flows from the end of the tube into
atmospheres. The tube is horizontal and 30 m long.