Q4. The diameter and stroke of a single-acting reciprocating pump are 300 mm and 500 mm...

Q4. The diameter and stroke of a single-acting reciprocating pump are 300 mm and 500 mm respectively. The pump takes its supply of water from sump 3.2 m below the pump axis through a pipe 9 m long and 200 mm diameter. If separation occurs at (2.4 − ? ??? ) m of water absolute, determine: (i) The speed at which separation may take place at the beginning of suction stroke, and (ii) The speed of the pump if an air vessel is fitted on the suction side 2.4 m above the sump water level. Take atmospheric pressure head = 10.3 m of water, and friction co-efficient, f = 0.01. Where n is the last two digits of student ID number [5.5 Marks

n=6

Expert Solution

samet mamat answered 5 months ago

A centrifugal pump has an eye diameter and an impeller diameter of 300 mm and 600...

A centrifugal pump has an eye diameter and an impeller diameter of 300 mm and 600 mm respectively while running at 850 rpm. When rotating, the blade angle is measured at 35o at the outlet with considering the tangent. The flow velocity is limited at 5 m/s constantly. Determine the following; (a) inlet blade angle (b) outlet absolute velocity with its angle at outlet and (c) the manometric head.

A horizontal Venturimeter with inlet diameter 300 mm and throat diameter 150 mm is used to...

A horizontal Venturimeter with inlet diameter 300 mm and throat diameter 150 mm is used to measure the flow of water. The pressure at inlet is 24 N/cm2 and the vacuum pressure (p2)at the throat is 320 mm of mercury. Find the discharge and velocity through the pipe .The value of Cd may be taken as 0.98.

‏1. The impeller in a centrifugal pump has inner diameter as 125 mm and outer diameter...

‏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.

A sample of concrete which is a cylinder 150 mm in diameter and 300 mm in...

A sample of concrete which is a cylinder 150 mm in diameter and 300 mm in length is placed in a test fixture. A load of 12,000 N is applied to the concrete specimen along the cylindrical axis and the length is observed to change 1 mm. Calculate Young's modulus in GPa.? Please reply as soon as possible

A hand-driven tire pump has a 2.00 cm diameter piston and a maximum stroke of 32.0...

A hand-driven tire pump has a 2.00 cm diameter piston and a maximum stroke of 32.0 cm. (a) How much work do you do in one stroke if the average gauge pressure is 2.40 ✕ 105 N/m2 (about 35 psi)? (You may consider this an isothermal process.) J (b) What average force do you exert on the piston, neglecting friction and gravity? N

A single thread power screw is 36 mm in diameter with a pitch of 6 mm....

A single thread power screw is 36 mm in diameter with a pitch of 6 mm. A vertical load on the screw imposes a force of 9 kN. The coefficients of friction are 0.09 for the collar and 0.16 for the screw. The effective diameter of the collar is 52 mm. Find the overall efficiency and torque required to raise and lower this load.

A cast iron water pipe of 500 mm inside diameter and 20 mm thick, is supported...

A cast iron water pipe of 500 mm inside diameter and 20 mm thick, is supported over a span of 10 meters. Find the maximum bending stress in the pipe metal, when the pipe is running full. Take density of cast iron = 70.6 kN/m3 and water = 9.8 kN/m3

A model centrifugal pump with impeller diameter 365 mm is tested at its design operating condition....

A model centrifugal pump with impeller diameter 365 mm is tested at its design operating condition. The test gives the following data when pumping water, speed = 870 rev/min head = 18.9 m capacity = 73.7 L/s efficiency = 89%. A geometrically similar pump is to be designed to pump a fluid with relative density 0.78 against a head of 85 m with a flow of 450 L/s. Determine: A) The impeller size? B) The speed? C) The power input...

A centrifugal pump has the following characteristic: outer diameter of impeller 800 mm, width of impeller...

A centrifugal pump has the following characteristic: outer diameter of impeller 800 mm, width of impeller vanes at outlet 100 mm, angle of impeller vanes at outlet 40 o . The impeller runs at 550 rpm and delivers 0.98 m 3 /s of water under an effective head of 35 m. A 500 kW motor is used to drive the pump. Determine the manometric, mechanical and overall efficiencies of the pump. Assume water enters the impeller vanes radially at inlet....

Given: A short cylinder of steel has a diameter of 150 mm and length of 500...

Given: A short cylinder of steel has a diameter of 150 mm and length of 500 mm. It comes out of a heat treatment process at a uniform temperature of 200oC and is plunged into an unstirred bath of oil at a temperature of 20oC. Find: Considering heat loss from only the cylindrical surface (ignore the ends), which orientation would cool more quickly? One orientation is for the axis to be parallel to gravity and the other perpendicular to...

Question