(iv) Consider a steady flow mixing process. Under what conditions will the energy transported into the control volume by the incoming streams be equal to the energy transported out of it by the outgoing stream?
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![(iv) Consider a steady flow mixing process. Under what conditions will the energy transported
into the control volume by the incoming streams be equal to the energy transported out of
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- Ammonia and air pass through the heat exchanger. While the ammonia is entering as asuperheated vapor at 16 bar pressure and 60C temperature it is leaving as a saturated liquid at thesame pressure but unknown temperature. The ammonia mass flow rate is 400 kg/hour.Air is flowing backward and is heated from 17C to 42C at the constant pressure of 2 bars.NOTE: Find air properties from https://www.peacesoftware.de/einigewerte/luft_e.html a. Draw the ammonia T-v diagram showing the stages, pressures, and temperatures b. How much heat is transferred from ammonia to air assuming no heat transfer to thesurroundings? c.Determine air mass flow rate Please show all steps in solution thanksProblem 2: Water flows in a horizontal pipe with an I.D. of 10cm (circular cross-section) and a length of 40 meters at a velocity of 1.25 m/sec. The water enters the pipe at a temperature of 20 C and is heated by the pipe wall so that it exits at 80 C. The system can be considered steady. Calculate the following: a) The mass flow rate of the water. b) The overall rate of heat addition to the flow (in W or kw). c) The (average) rate of heat transfer to the flow per square cm of pipe wall area (W/cm2).This hermodynamics statement is false to say that a basic way to reduce the mean velocity of water flowing through a pipe for a given mass flow rate and density is to decrease the inside diameter of the pipe? Why is this statement false? Please explain. Thank you!
- Ammonia and air pass through the heat exchanger. While the ammonia is entering as a superheated vapor at 16 bar pressure and 60C temperature it is leaving as a saturated liquid at the same pressure but unknown temperature. The ammonia mass flow rate is 400 kg/hour. Air is flowing backward and is heated from 17C to 42C at the constant pressure of 2 bars. NOTE: Find air properties from https://www.peacesoftware.de/einigewerte/luft_e.html a.Draw the sketch of the heat exchanger showing all thermodynamic parameters (P, T, etc.) Please show all steps of solutionBenzene at 20 0C is pumped from one storage tank to a reactor (density=878 kg/ m3 ). Volumetric flow rate of benzene is 9.5x 10-4 m3 /s. The difference in the elevations of the two unit is 40m. The tank whichserves as a source is open to the atmosphere while the tank which receives the benzene has a pressure of P2 kPa abs in the vapor space above the benzene. 1‐in, schedule‐40 steel pipe and 2‐in Sch‐40 steel pipe isused in suction and discharge line respectively. Total friction loss of the system given as 135 J/kg . Pressure gauges in the pipeline at the inlet and outlet of the pump read (P3) 34.5kPa and (P4) 1051.6kPa, respectively. Efficiency of pump is %75 a) Calculate the power of pump (kW). (Fluid Mechanics Question) (Please answer it detailed and step by step)mnot Thot = 75°C %3D Tout-? mcold Tcold 18°C %3D Hot and cold stream of water are mixing together as shown in Figure. The temperature of the hot and cold streams at the inlet are 75 °C and 18 °C, respectively. Mass flow rates of the hot and the cold streams are (1.50x10^-1) kg and (1.000x10^-1) kg, respectively. Find the temperature of the mixed stream. The specific heat of the hot water stream is 4000 J/kg-K and the cold stream is 3800 J/kg-K. Answer should be in °C with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Activate W Go to SettingS x10 (?) 9°C 2020 近
- Q2 (a) Water and alcohol are mixed in a y-duct as shown in Figure Q2 (a). Determine the density of the alcohol as the average density of the mixture of alcohol and water is 920 kg/m³. The volume flow rates of water and alcohol are 0.1 m³/s and 0.2 m³/s respectively. (3 marks) Water and alcohol mix Water Alcohol Figure Q2 (a)What is mass flow rate of a liquid flowing through a pipe? Derive Bernoulli’s equation.The air considered as the ideal gas flows through the compressor and heat exchanger at a volumetric flow rate of 26.91 m3 / min as shown in the figure. At the same time, a stream of liquid water passes through the heat exchanger. The information given in the figure is for continuous flow. Considering the compressor and heat exchanger as adiabatic and ignoring kinetic and potential energy changes, a) the power requirement of the compressor (kW) and the mass flow rate of the cooling water (kg / h),b) Calculate the entropy generation (kW / K) per unit time for the compressor and heat exchanger.
- Consider an ordinary shower where hot water at 56 °C is mixed with cold water at 18 °C.A steady stream of warm water at 40 °C is desired. The hot water enters at kg/s. Assume heat losses from the mixing chamber to be negligible and the mixing takes place at a pressure of 140 kPa. (Figure 1) Part A Determine the mass flow rate (m) of cold water using the SL model. Express the answer to two significant figures. Vol AEO I vec m2 = kg/s Submit Request Answer4. An experimental test rig is used to examine two-phase flow regimes in horizontal pipelines. A particular experiment involved uses air and water at a temperature of 25°C, which flow through a horizontal glass tube with an internal diameter of 25.4 mm and a length of 40 m. Water is admitted at a controlled rate of 0.026 kgs¹ at one end and air at a rate of 5 x 104 kgs-¹ in the same direction. The density of water is 1000 kgm 3, and the density of air is 1.2 kgm 3. Determine the mass flow rate, the mean density, gas void fraction, and the superficial velocities of the air and water. Answer: 0.02605 kgs-¹, 61.1 kgm-³, 0.94, 0.822 ms-¹, 0.051 ms-¹The pressure in a pipeline that transports helium gas at a rate of 2 kg/s is maintained at 1 atm by venting helium to the atmosphere through a 5-mm- internal-diameter tube that extends 15 m into the air as shown in figure beside. Assuming both the helium and the atmospheric air to be 25 oC, determine: • A- the mass flowrate of helium lost to the atmosphere through the tube. • B- the mass flowrate that infiltrates into the pipeline • C- the flow velocity at the bottom of the tube where it is attached to the pipeline that will be measured by an anemometer in steady operation
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