The water is flowing through a pipe having diameters 30 cm and 21 cm at sections 1and 2 respectively. The rate of flow through pipe is 40 litres/s. The section 1 is 7 m above datum an is 3 m above datum. If the pressure at section 1 is 37 N/cm? , find the following by neglecting losses: (ENTER ONLY THE VALUES BY REFERRING THE UNIT GIVEN IN BRACKETS) ) Area of cross section of section1 (unit in m2) = Area of cross section of section2 (unit in m?) = velocity at section 1 (unit in m/s) = velocity at section 2 (unit in m/s) = (ii) difference in datum head (Unit in m) = Pressure head at section 1 (Unit in m) = pressure head at section 2 (unit in m) =

The water is flowing through a pipe having diameters 30 cm and 21 cm at sections 1and 2 respectively. The rate of flow through pipe is 40 litres/s. The section 1 is 7 m above datum an is 3 m above datum. If the pressure at section 1 is 37 N/cm? , find the following by neglecting losses: (ENTER ONLY THE VALUES BY REFERRING THE UNIT GIVEN IN BRACKETS) ) Area of cross section of section1 (unit in m2) = Area of cross section of section2 (unit in m?) = velocity at section 1 (unit in m/s) = velocity at section 2 (unit in m/s) = (ii) difference in datum head (Unit in m) = Pressure head at section 1 (Unit in m) = pressure head at section 2 (unit in m) =

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.15P

See similar textbooks

Similar questions

Flow takes place between three reservoirs, as shown in Figure 1. The volume flow rateout of reservoirs A and B is 0.15 m3/s and 0.25 m3/s respectively. If the coefficient offriction for the three pipes is 0.008, determine the relative elevations of the freesurfaces. Neglect all losses other than friction. PLEASE USE THE BERNOULLI EQUATION L1 = 1000 m D1 = 200 mmL2 = 1500 m D2 = 250 mmL3 = 2000 m D3 = 400 mm
A water supplying pipe of diameter 14 cm, is used to pump the water to the house in the Tanuf hill at the height of 60 m above the ground. The flowrate at the end of the pipe is 180 lit/s. The pressure gauge is connected at the inlet of the pipe in the ground and measured as 35.5 N/cm2. Find the following: (i) The kinetic energy per unit weight at the entry of pipe (in m) (ii) Pressure head at the inlet (in m) (iii) Total available energy per unit weight of the water at the pipe entry (unit in m)
In the pumping system shown below, determine the following. a. Head loss at suction in m b. Head loss at discharge in meters c. Total head losses in meters d. Total dynamic head developed by the pump in meters e. Water Power in KW f. Brake Power in KW g. Energy consumption for 15 hours operation in KW-hr h. Line current drawn by the 3-Phase motor drive in amperes i. Pumping cost in Pesos/Day if electricity costs P7.00/KW-hr Figure: Other Data Water Temperature: 20∘C Suction Line 5−20 m 1−90∘ Elbow 1− Check Valve (Fully Open) Pipe Material: Galvanized Iron ND=100 mm Discharge Line L=50 m 12−90∘ Elbow 1− Gate Valve (Fully Open) 1− Check Valve Pipe Material: Galvanized Iron ND =80 mm Pump Efficiency: 75% Motor Efficiency: 82% Volts: 220 V Power Factor: 92%
(Q29) A horizontal pipe of diameter 550 mm is suddenly contracted to a diameter of 300 mm. The pressure intensity in large pipe is given as 14 N/cm2 and the flow velocity in the larger pipe is 2 m/s. Find:- (a) The rate of flow of water through a horizontal pipe. (b) Loss of head due to sudden contraction. (c) Pressure intensity in smaller pipe.
The pressure in a section of a horizontal pipe of diameter d1 = 2.0 cm is p1 = 142 kPa. The water flows through the pipe at a volumetric flow rate V = 2.8 L/s. If the pressure at a certain point is reduced to p2 = 42.6 kPa, due to a throttling of a pipe section, what should the diameter d2 of the throttling section be? Consider the density of water ρ = 1.0 g/cm3. Choose the correct option:
Please indicate the given and illustration A steel pipe, 3.5 km long x 80 cm diameter x 1 cm wall thickness, conveys water at the rate of 1.75 m3/s. Determine the increase in pressure when a valve provided at the downstream end of the pipe is closed instantaneously. Consider pipe to be elastic and take bulk modulus of water K = 2x109 N/m2; Modulus of elasticity of steel E = 2x1011 N/m2. After determining the surge of pressure in the pipe, compute the following: A) The Longitudinal Stress of the Pipe in Pascal. B) The Circumferential Stress of the Pipe in Pascal.
2.4) A pipe discharges 142 lps of water into a reservoir at a point 1.85 m below the water surface. At point A the diameter is 25.4 cm and the center of the pipe is 1.25 m above the water surface. At the discharge end the pipe is 30.5 cm. If the head loss from A to the reservoir is 0.7 m, determine the pressure in A.
A pipe 50 cm in diameter carries water (l0°C} at a rate of 0.5 m 3 / s. A pump in the pipe isused to move the water from an elevation of 30 m to 40 m. The pressure at section 1 is 70kPa gauge, and the pressure at section 2 is 350 kPa gauge. What power in kilowatts and inhorsepower must be supplied to the flow by the pump? Assume h L = 3 m of water and α 1 =α 2 = 1. Find the following Draw the Schematic diagram Drive the energy equation Calculate pump head Power requirement
A pipe with unequal ends is used to transport a fluid. The pipe diameter at the larger end is 0.81 cm and the other end is 0.28 cm. The larger and smaller ends are located 10 m and 4 m, respectively, from the datum line. If the flow at the 10 m datum line is 1.60 m/s and the pressure is 5244 kN/m2, compute for the pressure, in kPa, at the smaller end. Express your answer in 3 decimal places.
A horizontal pipe of diameter 0.2 m is suddenly enlarged to 0.3 m. If the rate of flow of water through the pipe is 0.2 m3/s and the intensity of pressure in the smaller pipe is 100 kPa, then find (i) the head loss due to sudden enlargement, (ii) power loss due to enlargement and (iii) intensity of pressure in the larger diameter pipe.
In the system of reservoirs shown below, the flow of Reservoir 1 to Reservoir 2 is Q=15 cfs. At point 1 (just before the valve) and point 2 (just before the pipe bend), the total energy head (E) is given as shown. Additionally, the elevation of Reservoir 2 is given as 230 ft. Minor head losses can be accounted for with the following assumptions: angle=120° Radius of curvature of pipe bend at Point 2 is 12ft. (smooth 90 degree bend) Valve is a fully open gate valve Find the following: The height of Reservoir #1 (HR1)
The water is flowing through a pipe having diameters 20 cm and 10 cm at sections 1and 2 respectively. The rate of flow through pipe is 35 litres/s. The section 1 is 6 m above datum and section 2 is 4 m above datum. If the pressure at section 1 is 39.24 N/cm2, find the intensity of pressure at section 2. Sketch the arrangement.