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The pipeline described in question 6.1 was used to carry wastewater to a hold-up tank. The effluent is not hazardous. A decision has to be made on what material to use to replace the pipe. Three suggestions have been made:
1. Replace with the same schedule carbon steel pipe and accept renewal at 3-year intervals.
2. Replace with a thicker pipe, schedule 80, outside diameter 114.3 mm (4.5 in), inside diameter 97.2 mm (3.826 in).
3. Use stainless steel pipe, which will not corrode.
The estimated cost of the pipes, per unit length is: schedule 40 carbon steel $5, schedule 80 carbon steel $8.30, stainless steel (304) schedule 40 $24.80. Installation and fittings for all the materials adds $16.5 per unit length. The downtime required to replace the pipe does not result in a loss of production. If the expected future life of the plant is 7 years, recommend which pipe to use.
Calculate the grams of H2O that will form on decomposition of 0.10 mole of ammonium nitrate
A 184.6-mg sample of K2Cr2O7 is dissolved in enough water to make 500.0 mL of solution. c. A 0.1025-g sample of copper metal is dissolved in 35 mL of concentrated HNO3 to form Cu2 ions and then water is added to make a total volume of 200.0 mL. (C..
case 1the diagram below shows a baffled tank with a six blade turbine agitatorfigure 1a is a side viewb is a bottom
Give the relationship between standard free energyand equilibrium constant.The relationship between standard free energy and equilibrium constant is given by?GO= -R Tln(K)Where?GOis the std.
(1) Determine the mass and the temperature of the steam in an insulated piston-cylinder arrangement if sufficient steam is admitted to displace the piston by one cubic foot. The cylinder originally is empty, and the piston main- tains a constant pres..
A spherical ball of benzoic acid (diameter = 1.5 cm) is submerged in a pool of still water. The solubility and diffusivity of benzoic acid in water are 0.03 kmol/m3 and 1.25 x 10-9 m2/srespectively.
About 10 to 30 million cells at most can be made from a highly purified single hematopoietic stem/preprogenitor cell in vitro.
The specification for a sieve plate column is given below. Make a preliminary mechanical design for the column. Your design should include:
Write a function called int_col that has one input argument, a positive integer n that is greater than 1,and one output argument v that is a column vector of length n containing all the positive integers smaller than or equal to n, arranged in suc..
Determine the force applied to the plunger by the electric system.
Fit the data to an empirical heat-capacity equation of the form by simple regression techniques.
Draw a one-line diagram of this three-phase distribution system.
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