4. Diethyl ether (SG=0.71, viscosity: 0.224 cp), which is the product from a distillation process, is being condensed in a tank shown in the figure and pumped away as liquid. The total pressure in the condenser is equal to the vapor pressure of diethyl ether which is 450 mmHg. Flow rate of the diethyl ether is 120 kg/min. Losses in the pipe between the condenser and the pump can be estimated as 15 J/kg. Vapor Condenser P=450 mmHg Cooling Water ho=? (a) If the net positive suction head of the pump is 3 m of liquid, what must be the least height of the liquid level in the condenser above the pump inlet?

4. Diethyl ether (SG=0.71, viscosity: 0.224 cp), which is the product from a distillation process, is being condensed in a tank shown in the figure and pumped away as liquid. The total pressure in the condenser is equal to the vapor pressure of diethyl ether which is 450 mmHg. Flow rate of the diethyl ether is 120 kg/min. Losses in the pipe between the condenser and the pump can be estimated as 15 J/kg. Vapor Condenser P=450 mmHg Cooling Water ho=? (a) If the net positive suction head of the pump is 3 m of liquid, what must be the least height of the liquid level in the condenser above the pump inlet?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Water flows at a rate of 0.1 kg/s in a tube with a diameter of 250 mm. The tube is heated uniformly at a rate of 135 kW/m2. Find the wall temperature at a location where Tsat = 180 C and x = 25%. [Ans.: Ts = 188 C]
A liquid (SG = 0.8 and μ = 5 CP = 0.00336 lbm/ft s) from a solvent recovery plant is being pumped from a vessel into a reactor. The flow rate to the rector is 100 GPM (0.2228 ft³/s,) and the line, schedule 40-carbon steel (a = 0.0018 in). The pressure in the vessel is 15 psig and the reactor is pressurized to 65 psig. The flow into the reactor is 25 ft below the level in the vessel as shown in the drawing. The centrifugal pump is located 5 ft below the level in the vessel. The piping consists of the following: Suction line 10 ft of 2.5" Pipe Gate valves 90 degree elbows Check valves 2" sch 40 pipe 2.5" Sch 40 pipe Gate valve Check Valve 90° elbows 2 2 1 ID = 2.067" ID=2.47" K = 8 ft K= 100 fr K = 30 ff Discharge line 325 ft of 2" 2 5 none Acs=0.0233 ft² Acs = 0.0332 ft² a. Determine the velocity in the 2.5" and 2" lines (ft /s). b. Determine the losses due to friction in both the suction and discharge lines (ft lbi/lbm). c. Estimate the amount of total dynamic head required of the pump…
Problem -1 A tank is initially empty. A liquid with p = 62.4 Ibm/ft is poured into the tank at a constant mass flow rate of mi = 7 lbm/s. The tank has cross-sectional area A = 0.2 fe, and the fluid in the tank has a %3D variable height H(t). There is a hole at the bottom of the tank. The fluid flows out of the tank at a rate proportional to the fluid height: rme = kH, where k= 1.4 lbm/ft/s. Find H(t). A sketch is given in Fig. P.1. Figure.P.1: Sketch of tank filling problem
Air is allowed to flow from a tank with temperature of 69.8 °F and with pressure of 49.3461 atm through a pipe. It was measured that flow rate is 2.2046 lbm/sec. At some point on the tube static pressure pressure was measured to be 22501.845 mmHg. Assume that process is isentropic and neglects the velocity at the reservoir, calculate the pipe diameter (answer in whole number, unit is mm). Assumed that the ratio of specific heats is 1.4.
PROBLEM 2 Consider a firefighter who is standing on a ladder and spraying water with a hose into Chief Inspector Jacques Clouseau's (Figure 3a) third-story apartment. A diagram of the hose/nozzle used by the firefighter is shown in Figure 3b. Assume the nozzle has little effect on the flow in the hose and water in the hose/nozzle is incompressible. The temperature of the water in the hose is 15 °C. (a) Chief Inspector Jacques Clouseau investigating the cause of the fire in his apartment. water hose diameter=10cm outlet diameter=5cm Figure 3 个个个 outlet velocity=6ms¹ (b) Fire hose/nozzle used to extinguish the fire in Inspector Clouseau's apartment.
a) Calculate the maximum flux the liquid water can have ( η = 0.891 cP and ρ = 0.998 g/mL a 20 ºC) when flowing through a 2 mm diameter tube, in the laminar regime.b) If the pressure when entering the tube is 1 bar, how many meters will it need for the pressure to decrease a 10%? Data: dina/cm3 = 10 Pa/m; 1 bar = 105 Pa. Results: 2.81 cm3/s, 1.57 m
Q3: The enthalpy of vaporization for water is: H,O H,0g sHvp =+ 44.0 kj/moie Calculate the AH for evaporating 3.00 grams of water and AH for Condensing 20 grams of water.
I am having trouble with units on this problem I am pretty sure I have the right number but I am unsure about the units
pls show complete solution
34. Fully developed air flows inside the ¼ in tubes of an air-cooled heat exchang- er at a rate of 1.5 lbm/h. The conditions at the inlet of the tube are atmospheric pressure and 60 F. After being heated in the 2 ft long tube, air leaves at 780 F. Find the pressure drop in the heat exchanger.
The following data for steam condenser: Steam condensed = 50000 kg/h; Temperature of steam in condenser = 40 oC; Dryness of steam entering into condenser=0.85; The air leakage in the condenser = 150 kg/h; Temperature of the condensate = 35oC. Find: (1) The air leakage pressure. (2) Quantity of cooling water passed through the condenser per hour if the rise in cooling water temperature is limited to 10oC