1-53 The water in a tank is pressurized by air, and the pres-sure is measured by a multifluid manometer as shown inFig. PI-53. Determine the gage pressure of air in the tank ifh = 0.2 m, h, = 0.3 m, and h, = 0.46 m. Take the densitiesof water, oil, and mercury to be 1000 kg/m'. 850 kg/m, and13.600 kg/m, respectively.OilAicMercutyFIGURE P1-53Scanned with CamScannerat a aeptn oI Y m.at uic UL1-56 The absolute pressure in water at a depth of 5 m isread to be 145 kPa. Determine (a) the local atmospheric pres-sure, and (b) the absolute pressure at a depth of 5 m in a liq-uid whose specifc gravity is 0.85 at the same location.Neglectineration,average1-64Scanned with CamScannerDFIGURE P1-58E1-59 The piston diameters in Fig. Pl-58E are D, = 10 cmand D, = 4 cm. When the pressure in chamber 2 is 2000 kPaand the pressure in chamber 3 is 700 kPa, what is the pres-

1-53 The water in a tank is pressurized by air, and the pres- sure is measured by a multifluid manometer as shown in Fig. PI-53. Determine the gage pressure of air in the tank if h, = 0.2 m, h; - 03 m, and h, - 0.46 m. Take the densities of water, oil, and mercury to be 1000 kg/m'. 850 kg/m', and 13,600 kg/m'. respectively. Oil Meteuty

1-53 The water in a tank is pressurized by air, and the pres- sure is measured by a multifluid manometer as shown in Fig. PI-53. Determine the gage pressure of air in the tank if h, = 0.2 m, h; - 03 m, and h, - 0.46 m. Take the densities of water, oil, and mercury to be 1000 kg/m'. 850 kg/m', and 13,600 kg/m'. respectively. Oil Meteuty

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter1: Heat, Temperature, And Pressure

Section: Chapter Questions

Problem 14RQ: Atmospheric pressure at sea level under standard conditions is ______inches of mercury (Hg) or_____...

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1-53 The water in a tank is pressurized by air, and the pres- sure is measured by a multifluid manometer as shown in Fig. Pl-53. Determine the gage pressure of air in the tank if h = 0.2 m, hy = 0.3 m, and h, = 0.46 m. Take the densities of water, oil, and mercury to be 1000 kg/m', 850 kg/m, and 13,600 kg/m', respectively. Oil Aic Water Mercury FIGURE P1-53 Scanned with CamScanner at a deptn o1 Y m.
Determine the reading h in meter based on Fig. 2-22 for a pressure of 52 kPa vacuum at point A if the liquid is kerosene (s.g.=0.83).
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Q マつ 13,600 kg/m) is con- 1-67 A mercury manometer (p nected to an air duct to measure the pressure inside. The difference in the manometer levels is 15 mm, and the atmospheric pressure is 100 kPa. (a) Judging from Fig. P1-67, determine if the pressure in the duct is above or below the atmospheric pressure. (b) Determine the absolute pressure in the duct. Air h = 15 mm P = ? FIGURE P1-67 hp
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(3) given as The pressure difference between two points as measured with a manometer is P2 – P1 = pgh The following figure shows a single U-tube manometer for measuring pressure difference between points “A" and "B". -Air Water The U-tube manometer. By determining the pressure at point “a" through the left leg and then through the right leg, show that the difference in pressure between point "A" Pa and “B' PB is approximately given by Pa – PB = g(h2 – h1)(PH20)