1. Oil with a specific gravity of 0.75 is pumped by a
centrifugal pump at 375...
1. Oil with a specific gravity of 0.75 is pumped by a
centrifugal pump at 375 gpm, 19 hp, and 81% efficiency. Determine
the pressure head in terms of: a) Feet of oil b) Feet of water
Crude oil of specific gravity (0.75) is flowing through a pipe.
The pipe has a diameter of 100 mm and 50 mm at the sections 1 and 2
respectively. The velocity of crude oil at the section 1 is 550
cm/s. The section 1 is 3000 mm and section 2 is 2000 mm
above the datum. If the pressure at the section 1 is 0.2
N/mm2, find the intensity of pressure at section 2?
A centrifugal pump is to be used to pump water from a lake to a
storage tank which is 165 feet above the surface of the lake. The
pumping rate is to be 10 - 35 gal/min at a water temperature of
43°F. The water is used for drinking but will have to undergo
filtration and chlorine treatment because there is sediment in the
lake. The pump on hand can develop a discharge pressure of 60.0
psig pumping at a...
An engineer is conducted the centrifugal pump at aircraft
hangar. The pump has an eye diameter and an impeller diameter of
200 mm and 500 mm respectively while running at 900 rpm. While it
rotate, the blade angle is measured at 35o at outlet
with considering the tangent. The flow velocity is limited at 3 m/s
constantly. Evaluate the
(a) inlet blade angle
(b) outlet absolute velocity with its angle at outlet and
(c) the manometric head.
The radius of the impeller of a centrifugal pump at the inlet is
6 cm and at the outlet is 10.5 cm. The blade angles β1 and β2 are
respectively 33o and 21o respectively. The width of the impeller is
uniform and 4.75 cm. The impeller rotates at 1200 rpm and pumps
water (See Figure 1). Assuming radial entry, (a) the flow rate
through the pump (b) the theoretical head (c) the power required
assuming an efficiency of 75%. (d)...
A U- tube manometer is used to measure the pressure of oil of
specific gravity 0.85 flowing in a pipe line. It is left end is
connected to the pipe and right –limb id open to the atmosphere.
The center of the pipe is 100 mm below the level of mercury
(specific gravity =13.6) the right limb .if the difference of
mercury level in the two limbs is 160 mm. determine the absolute
pressure of the oil in the pipe.
A U-tube manometer employs a special oil having a specific
gravity of 0.2 for the manometer fluid. One side of the manometer
is open to local atmospheric pressure of 24.3 inHg and the
difference in column heights is measured as 10 cm±1.0 mm when
exposed to an air source at 35◦C. Standard acceleration of gravity
is present. Calculate the pressure of the air source in pascals and
its uncertainty.
1. (a)Plot the Voltage vs. Displacement graph of LVDT Transducer
by...
1. A centrifugal water pump impeller is given an inlet and exit
radius of 400 mm and 1200 mm, and an inlet and exit blade thickness
of 120 mm and 80 mm. The entering and exiting blade angles are 40o
and 60o respectively. If the pump rotational speed is 575 rpm with
and efficiency of 85%, determine: a) Ideal head (m) b) Fluid power
for max pressure (kW) c) Shaft torque for max pressure (Nm)
solutions a) 488 m b)...
1. The impeller in a centrifugal pump has inner diameter as
125 mm and outer diameter as 270 mm. The pump runs at 1400 rpm. The
vane angles of impeller at inlet and outlet are 17° and 30°
respectively. The water enters the impeller radially and velocity
of flow is constant. Determine the work done by impeller per unit
weight of water.
Design a chain drive for a Centrifugal Pump to be driven by a
Steam Turbine. The input speed will be 1100 RPM, and the desired
output speed is 350 RPM. The conveyor requires 20.0 hp. What type
of lubrication will be needed?