covered with 2.8 m ker
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- Problem 4. The pipe bend is in a horizontal plane. Oil (s = 0.88) enters the bend with a velocity of 3.50 m/s and a pressure of 280 kPa. Neglecting any energy losses in the bend, find the forces required to hold the bend in place. d = 200 mm d = 80 mm 65°Assuming that pressure will increase at a uniform rate and there is no damping of the pressure wave. Water from a reservoir that flows through a 650mm pipe at 1.8m/s is completely stopped by a closure of a 160 m valve from the reservoir. The thickness of the pipe is 25mm, bulk modulus of water is 2.2x10⁹ Pa and E of steel is 1.4x10¹¹ Pa. Determine the following: a. Celerity of the pressure wave b. Equivalent bulk modulus of water c. Pressure on the pipe after closure of the valve d. Time required to avoid water hammer e. Water hammer pressure of the velocity will decrease to 1.2m/s f. Maximum permissible discharge after the outlet valve closure. ANSWER: d) t = 0.256 sec. e) Ph=pCAV = 749.8476 kPa f) Q = AV = 0.597 m³/s a) C = 1249.746m/s b) k' = 1.562x10⁹ Pa c) Ph=pCV = 2249.5428 kPaThis is a mercury U-tube*acceleration = 4.905 m/s^2 to the right What is the gage pressure at A? in kPa
- SITUATION B. An open tank containing brine (SG = 1.3) is accelerated vertically at 7.5 m/s2. Determine the pressure: 6. 1.5 m below the surface if the motion is upward with a negative acceleration 7. 2 m below the surface if the motion is downward with a negative accelerationCOMPUTE THE CAPILLARY RISE IN mm. OF PURE WATER AT 10^0 C EXPECTED IN A 0.8 mm θ TUBE8.9 A cylindrical steel pressure vessel has a 400-mm inner radius and 8-mm-thick walls. Find the change in the inner radius when the vessel is pressurized to 1.2 MPa. Use E = 200 GPa and v = 0.3 for steel.
- 4. A welded cylindrical drum is made of steel plate. It has an internal diameter of 1.50 m and its wall thickness is 12 mm. Determine the change in diameter internal pressure of 2.0 MPa. Assume that the Poisson's ratio is 0.33 and E= 200 GPa.determine the difference in pressure (kPa) between a and b a=4.99 meters b=1.78 metersAs shown in the figure compute the amount and location of the vertical and horizontal components of the hydrostatic pressure on XY SECTOR GATE L=12M 6.5M I 60° 10M Pv P Y W.S PH
- b) Write the compatibility equation of the structure in figure 2. 5EN 10KN/m 2.5m 2.5m 2.5m Figure 2A circular plate of 4 mm in diameter of submerged in water, its greatest and least depths are below the surface being 4 m and 2 m respectively. Find (i) the total pressure on one face of the plate (ii) the position of the centre of presdureProblem 8: EGL and HGL (IV) Consider a storage reservoir with a water surface elevation of 270 m. It is connected to a closed conduit (i.e., a pipe) that carries water down to a turbine at elevation 60 m. The friction head loss in the conduit is 20 m. Part A At point D, what are the pressure head P/y, the elevation head z, and the HGL? Part B Copy the diagram below. If the conduit is a closed pipe flowing full, is the velocity head V²/(2g) constant D→E? Answer yes or no, then sketch the EGL above the pipe D-E. Use a solid line. D E z = 270 m T Part C Based on your answer to Part B, sketch the HGL from D-E. Use a dashed line. z = 270 m Part D Now assume the conduit is an open channel. Copy the diagram below. Is the velocity head V²/(2g) constant D→E? Answer yes or no, then sketch the EGL above the pipe D→E. Use a solid line. E D z = 60 m T z = 60 m Part E Based on your answer to Part D, sketch the HGL from D-E. Use a dashed line.
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