An important design consideration in two-phase pipe flow of solid-liquid mixtures is the terminal settling velocity below, which the flow becomes unstable and eventually the pipe becomes clogged. On the basis of extended transportation tests, the terminal settling velocity of a solid particle in the rest water given by
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Fluid Mechanics: Fundamentals and Applications
- For each situation below, briefly explain how you obtained the values and provide the numerical answer. A) What is the internal energy of saturated water vapor at 305 degree Celsius? B) What is the pressure of a system of saturated liquid water with a specific volume of 0.001488 m^3/kg? C) What is the enthalpy of a saturated mixture of water at 423 k with quality of 43%? D)When 1 kg saturated water vapor is condensed to a saturated liquid water at 325 Kpa, what is the change in its volume? E) What is the specific internal energy of liquid water at 280 degree Celsius and 7500 Kpa?arrow_forwarda) In a simple experiment, a solid with a diameter 3 mm and density 1500 kg/m3is released from a tall tower containing air at 25 oC and 1 atm. The inside diameter of the column is 0.15 m. The density of the air is assumed to be 1.2 kg/m3. List all your assumptions and estimate the minimum height of the tower to make sure the particle reaches its terminal velocity before it hits the bottom of the tower. b) In another experiment, 5 kg of the solid particles are to be fluidized with air at 1 atm and 25 oC. The diameter and density of the particles are 3 mm and 95 kg/m3, respectively.Using the Ergun Equation, determine whether the flow of the air is laminar orturbulent. List all your assumptions.arrow_forwardZeroth Law of Thermodynamics 1. A mercury manometer indicates a vacuum of 62 cm of mercury 20 ℃ in a condenser. Determine the absolute pressure in the condenser in pascals if thebarometer pressure is 750 mm of mercury. 2. A tank having a volume of 1.22 m3contains 6.48 kg of nitrogen and 7.78 kg of oxygen. Determine the density and the specific volume of the mixture.arrow_forward
- A container is filled with a mixture of 2 fluids having densities of 5 kg/L (fluid A) and 400 kg/m^3 (fluid . What will be the overall density (in g/cm^3) of the mixture of 1/3 of the container is filled with fluid A and 1/4 is filled with fluid B?arrow_forwardAir at a dry bulb temperature of 40℃ and a wet bulb temperature of 20℃ is first heated in a heater to a dry bulb temperature of 90℃. Then it is passed through a bed of apricot slices to dry them. The air exiting from the top of the apricot bed is at a dry bulb temperature of 60℃. Clearly show the various paths of the process on a psychrometric chart! Determine the amount of moisture removed, in grams of water/second from the apricot bed!arrow_forwardII A volume of compressed air storage tank is 0.3m3, and the air pressure P1 in the tank is 1MP.. When a part of compressed air is used, the pressure P2 of the air in the tank decreases to 0.9 MPa. Set the room temperature at 20 ° C, calculate the mass of original air ml and the mass of residual air m2. Air gas constant Rg = 287.1 J/ (kg - K)).arrow_forward
- Question : Determine the units of the quantity s ̄/Ru, where s ̄ is the molar specific entropy and Ru is the universal gas constant. Explain your answer pleasearrow_forwarda) How does the final temperature of the gas compare with its initial temperature? (Tc/Ta) b)How much heat does the air exchange with its surroundings during the process abc? Express your answer in joules. Does it absorb or release heat? c) If the air instead expands from state a to state c by the straight-line path shown, how much heat does it exchange with its surroundings?arrow_forwardCalculate the specific volume of an air vapor mixture in cubic meter per kilogram of dry air when the following condition prevail: t=31.9 degree celsius, SH=0.15kg/kg, and Pt=92.5Kpa.arrow_forward
- Natural gas, with the thermodynamic properties of methane, flows in an underground pipeline of 0.6 m diameter. The gage pressure at the inlet to a compressor station is 0.5 MPa; outlet pressure is 8.0 MPa (gage). The gas temperature and speed at inlet are 13C and 32 m/s, respectively. The compressor efficiency is η = 0.85. Calculate the mass flow rate of natural gas through the pipeline. Label state points on a Ts diagram for compressor inlet and outlet. Evaluate the gas temperature and speed at the compressor outlet and the power required to drive the compressor.arrow_forward11. 100 g of water are mixed with 150 g of alcohol (). What is the specific gravity of the resulting mixtures, assuming the fluids mixed completely.arrow_forwardOn the bases of the units of the quantities involved, show that the mass flow rate of air (in kg/s) through the swept area is proportional to air density, the wind velocity, and the square of the diameter of the swept area.arrow_forward
- Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning