MATERIALS SCIENCE AND ENGINEERING: INTRO
10th Edition
ISBN: 9781119571308
Author: Callister
Publisher: WILEY
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Chapter 8, Problem 1SSP
To determine
To develop:
A spreadsheet data to plot stress amplitude versus logarithm of cycles to failure.
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Solve the following systems using Gauss Seidal and Jacobi iteration
methods for n=8 and initial values Xº=(000).
3x12x2x3 = 4
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2x1 x2 + 2x3 = 10
x13x24x3 = 4
Estimate the required air flow rate for the new activated sludge plant at Pea Ridge (Problems
23-223-723-10, and 23-13). The flow rate is 8,450 m³/day, the concentration
of bCOD going into the system (So) is 137 mg/L, the concentration of bCOD leaving the
system (S) is 16.3 mg/L, and the mass of cells produced per day (Pxvss) is 277.4 kg/d. Use the
following assumptions to estimate the required air flow rate:
. Clean water correction, a = 0.50
. Salinity correction, B = 0.95
Fouling factor = 0.9
Wastewater temperature = 12°C
Atmospheric pressure = 101.325 kPa
.Elevation 500 m
.
Depth of aerator = 5.6 m
Operating DO 2.0 mg/L
Percent oxygen leaving aeration tank - 19%
■ Manufacturer's SOTR = 535 kg/d
Manufacturer's air flow rate at standard conditions 50 m³/d - aerator
Express your answer with the units of m³/d and round to the nearest integer.
Use Newton-Raphson method to solve the system
x²
-
2x-y+0.5= 0
x² + 4y² 4 = 0
-
with the starting value (xo,yo) = (2,0.25) and two iteration number.
Chapter 8 Solutions
MATERIALS SCIENCE AND ENGINEERING: INTRO
Ch. 8 - Prob. 1QAPCh. 8 - Prob. 2QAPCh. 8 - Prob. 3QAPCh. 8 - Prob. 4QAPCh. 8 - Prob. 5QAPCh. 8 - Prob. 6QAPCh. 8 - Prob. 7QAPCh. 8 - Prob. 8QAPCh. 8 - Prob. 9QAPCh. 8 - Prob. 10QAP
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- Determine the required solids retention time (SRT) of a completely mixed activated sludge aeration tank for a conventional activated sludge system treating a design flow rate of 34,560 m³/d, where the effluent standards are 30.0 mg/L for BODs and 30.0 mg/L for total suspended solids (TSS). Assume that the BOD5 of the effluent TSS is 70% of the TSS concentration. Assume the BODs concentration leaving the primary clarifier is 128 mg/L that the MLVSS concentration (X₂) is 2,500 mg/L. Assume the following values for the growth constants: Ks 100 mg/L BODS ⚫ Hm - 2.5 d 1 kd = 0.050 d 1 Y = 0.50 mg VSS/mg BODs removed Express your answer in days and round to the nearest 0.1.arrow_forwardSolve the following systems using Gauss Seidal and Jacobi iteration methods for n=8 and initial values X0=(000). - 2x16x2 x3 = -38 - -3x1 x2+7x3 = −34 -8x1 + x2 - 2x3 = -20arrow_forwardQ1: Figure below shows loaded beam with its cross-section area, (A) Draw shear force and bending moment diagrams, stating the main values, (B) Find central slope and deflection, (C) Sketch the distribution of shear stress at left support, (D) Find maximum tensile and compressive bending stresses set up in beam at right support. E-205GN/m² P1 P2 P3 W1 W2 Lin Lin # A Length in (m) and loads in kN 3a a 2a 2a (Cross-section area, All dimensions in (mm))arrow_forward
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- *10-4. Determine the internal moments at the supports A, B, and C, then draw the moment diagram. Assume A is pinned, and B and C are rollers. El is constant. 3 k/ft 8 ft- 8 ft -4 ft-arrow_forward6arrow_forwardQ2: Determine the change in dimensions in each section of the bar shown in figure. The portion AB is circular section and portion BC is rectangular section. E=115GN/m², v=0.33. L1 L2 P2+ P2 B Q3: A block is subjected to the stresses as shown in figure, find: principal stresses, shear stress with their directions and the normal and shear stresses on a plane inclined at 0. All stresses in MPa. (Confirm your answer by means of Mohr's stress circle). Txy 30 Note: (1) For all questions the student can choose any values of P1, P2, P3, W1, W2, a, σ (MPa), Txy (MPa), 0°, length and the dimensions of cross section area.arrow_forward
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