Steam enters a long, horizontal pipe with an inlet diameter of D1=12 cm with a velocity of 2 m/s. And out let D2=10 cm, Determine (a) the mass flow rate of the steam and
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- A well-insulated turbine operating at steady state is shown on the right. Steam enters at 3 MPa, 400°C, with a volumetric flow rate of 85 m³/min. Some steam is extracted from the turbine at a pressure of 0.5 MPa and a temperature of 180°C. The rest expands to a pressure of 6 kPa and a quality of 90%. The total power developed by the turbine is 11,400 kW. Kinetic and potential energy effects can be neglected. Determine (a) the mass flow rate (in kg/s) at each exit, and (b) the diameter of the duct, d₂ (in cm) where steam is extracted P₁ = 3MPa T₁=400°C (AV)₁ = 85 m³/min Turbine P2 = 0.5 MPa T₂ = 180°C V₂= 20 m/s Power out ¹3 P3= 6 kPa x3 = 90%Problem 13.84 The converging nozzle has an exit diameter of 0.25 m. The fuel-oxidizer mixture within the large tank has an absolute pressure of 4 MPa and temperature of 2100 K. The mixture has k = 1.38 and R = 296 J/[kg-K]. (Figure 1) Figure 0.25 m 1 of 1 Part A Determine the mass flow from the nozzle when the backpressure is a vacuum. Express your answer using three significant figures. IVE ΑΣΦ m = Submit Provide Feedback Request Answer vec ? kg/s6. The nozzle which furnished the water to a certain hydraulic turbine 275 mm in diameter and has coefficient of velocity and discharge of 0.98 and 0.955 respectively. The nozzle is supplied from a 60 cm pipe in which the water approached the nozzle with a total head of 330 m. Compute the energy per second delivered by the jet to the turbine and the energy measure in horsepower lost in passing through the nozzle.
- Compute the pressure heat at m, in feet of fluid A, indicated by open manometer in figure 2 below when (a) Fluid A is oil (sp gr 0.851), the gage liquid is carbon tetrachloride (sp gr 1.51), y=30.15 in, z=3051 in. (b) Fluid A is molasses (sp.gr 1.50), gage liquid is water, y=3.51 ft, z=1.15 ftHeavy fuel oil flows at Q = 10 gallons per minute (gpm) in a horizontal steel pipe that connects two storage tanks. The diameter of the pipe is D = 1.5 inches. The length of the pipe is L = 100 feet. The depth of oil in the supply tank is 30 feet above the pipe entrance. The temperature of the oil is 60°F, the specific gravity of the oil is s.g.oin = 0.90, the specific weight of the oil is 56.13 lb/ft', and the kinematic viscosity of the oil is 0.00175 ft2/s. The pipe discharges into the bottom of the receiving tank. Neglect minor losses. a) Determine the pressure p at the pipe entrance in pounds per square foot (psf). b) Determine the velocity v in feet per second (fps). c) Determine the Reynolds number Re. d) Classify the flow based on the Reynolds number Re. e) Determine the Darcy-Weisbach friction factor f. f) Determine the friction head loss hfac in feet in the pipe between the two storage tanks. 8) Determine the depth of oil in feet above the exit from the pipe into the second…Engine oil (similar to oil D) flows at 0.95 ft/s through a 1-inch diameter tube. The bulk oil temperature is 320 F and the tube surface temperature is 300 F. Determine the unit convective coefficient for tube lengths of (a) 6.5 ft and (b) 13 ft (round off answers to 1 decimal place). For oil, k = 0.94 Btu-in/ft2-hr-F and cp = 0.52 Btu/lb-F.
- 1. In figure 3, water at 10°C is flowing from section 1 to section 2. At section 1, which is 25 mm in diameter, the gage pressure is 345 kPa and the velocity of flow is 3.0 m/s Section 2, which is 50 mm in diameter, is 2.0 m above section 1. Assuming there are no energy losses in the system, calculate the pressure p2. Fluid element Fluid P2» 22. V2 elementA pump drawing water from a reservoir and discharging it into the atmosphereat point B. The pressure at point A in the suction pipe is negative < 200mmHg, and discharges 100 L/s. Determine the following.a. Energy head at point A with respect to the datumb. Energy head at point B with respect to the datumc. Energy head added by the pump without head loss.3. A horizontal aluminium radial fin copper heat pipe is constructed from a 90cm-long pipe to recover heat in a heat pipe heat exchanger, as shown in the figure. The water is the working fluid in the heat pipe. The inner and outer diameters of the heat pipe are 9 mm and 50 mm (ri =5 mm), respectively. The diameter of the vapor space is 7 mm. The aluminium (kat = 205 W/mK) fin thickness and outer fin diameter are 0.1 mm and 40 mm %3! (r2= 20 mm) and the fin spacing is 2 mm. The evaporator, adiabatic region and condenser of the heat pipe are 20 cm cach and the wicking structure consists of two layers of #200- mesh copper screen with the wire diameter of 0.0012 in of the heat pipe. The copper has the thermal conductivity of 401 W/mK. The evaporator of the heat pipe is immerged in a stream of airflow at 40°C with the heat transfer coefficient of 27 W/m'K. The condenser is immerged in a stream of airflow at 23°C with the heat transfer coefficient of 27 W/m'K, respectively. (a) The total…
- - In a mano meter shown, the fluid from A to B is mer cury (s-q= 13-0) and from e to C,the flud is oil Csg. 0-80). At what height "h" Of mercury Of 226.3 gram cm at C. ue density of watr p= 1granl Com?. oil 1-20m will give a pressure mercuryReservoir A supplies water to a nozzle having a diameter of 8 cm which discharges water 40 m below the reservoir water level at a velocity of 24 m/s. a. Determine the horsepower produced by the jet. b. Determine the loss of head in the pipeline and nozzle and the efficiency of nozzleOil with sp. gr. of 0.87 is being pumped from a lower reservoir to an elevated tank as shown. The pump in the system is 78% efficient and is rated 185 kW. Determine the flow rate of the oil in the pipe if the total head loss from point 1 to point 2 is 12 m of oil. 160mm 200mm EL.200m W.S. El. 150m Oil. Sp.gr.=0.82