Sustainable Energy
1st Edition
ISBN: 9781133108689
Author: Richard A. Dunlap
Publisher: Cengage Learning
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Chapter 1, Problem 4P
One gram of methane is burned, and the heat is used to raise the temperature of 1 kg of water. If the initial temperature of the water is 25°C, what is the final temperature?
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Question 1:
A cylindrical soil sample is connected to two water reservoirs:
a) Determine the pressure, elevation, and total head at a point one meter above the bottom of the sample (point A).
b) Calculate the pore pressure and effective stress at point A if the soil has a saturated unit weight of 18.7kN/m^3. c) Determine the water flow rate though the sample if the soil has a coefficient of permeability of 0.19 cm/s and the radius of the sample is 20 mm.
d) Is it possible for the soil to reach the “quick condition”(zero effective stress) by raising the level of the water in the upper reservoir? Why or why not?.
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Questions 1:
A clay rich soil is totally saturated, has a bulk density of 2.12 g/cm3, and a void ratio of 0.33.
a) Draw the full three phase diagram for this soil including all the volume and mass quantities.
b) Determine the density of the soil solids.
c) Determine the total density of the soil if the saturation was reduced to 50%.
Question 2:
A soil sample was tested yielding the following grain-size distribution chart: (refer to the image provided)
The soil fines (inorganic) were also tested and had a liquid limit of 76 and a plastic limit of 49
Determine the coefficients of uniformity and curvature.…
Note:
Provide a clear, step-by-step handwritten solution (without any detailed explanations). Ensure the work is simplified and completed manually, adhering to expert-level accuracy. Refer to the provided image for clarity and ensure all calculations are double-checked for correctness before submission. Thank you!.
Question 1:
A cylindrical soil sample is connected to two water reservoirs:
a) Determine the pressure, elevation, and total head at a point one meter above the bottom of the sample (point A).
b) Calculate the pore pressure and effective stress at point A if the soil has a saturated unit weight of 18.7kN/m^3. c) Determine the water flow rate though the sample if the soil has a coefficient of permeability of 0.19 cm/s and the radius of the sample is 20 mm.
d) Is it possible for the soil to reach the “quick condition”(zero effective stress) by raising the level of the water in the upper reservoir? Why or why not?.
Question 2:
A new structure is planned to be constructed in…
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- Note: Provide a clear, step-by-step, simplified handwritten solution (no explanations), ensuring it is completed without any AI involvement. The solution must demonstrate expert-level accuracy and will be evaluated for its quality and precision. Please refer to the provided image for additional clarity. Double-check all calculations for correctness before submission. Thank you!. Question 1: (refer to the image for visual understanding) For the soil element shown on the right: a) Draw the Mohr’s circle for this case b) Find the major and minor principal stresses c) Find the normal and shear stresses on plane AB. Question 2: (refer to the image) A soil sample in a triaxial test with a cell pressure of 100 kPa fails when the vertical stress reaches 400 kPa. The resulting failureplane is observed to dip 60 degrees from horizontal (see figure). Assume that the soil is drained during the test, i.e. there is no pore pressure. a) Determine the friction angle of the soil. Hint: draw the…arrow_forwardPlease solve all pointsarrow_forward1: find out the optimal solution: 1- Reliability Function 2- Serial Configuration 3- M.T.T.F 4- Probability distribution function (P.D.F) 5- Failure rate function :calculate the reliability of the system for the following Figure 0.90 0.80 0.95 0.80 0.80 0.94) 0.80 : A system containing four connected compounds in series, each one has a distribution and its parameters as shown in the table below Component Scale parameter Shape parameter 1 100 1.20 2 150 0.87 3 510 - 1.80 4 720 1.00arrow_forward
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- Please solve the question by hand with a detailed explanation of the steps.arrow_forward) We started a new production process and its study gave the total deviations The standard value (for 25 samples of the product, sample size 4) is .105 .Calculate the capacity of this process The product specification limits are: 6.30 = LSL 6.50 = USL Standard deviation in a manufacturing system is 0.038 = We made improvements to the system and the deviation has become Standard 0.030 = σ What is required is to calculate the estimated coefficient before and after the operation Optimization. What is your conclusion? : A find out the optimal solution: 1-Average Outgoing Quality AOQ 2- operating Characteristics Curve 100% Inspection 3-Acceptable Quality level 4- Average outgoing Quality AOQ 5- Capability Index CPKarrow_forwardFollowing are the data of gauge and discharge collected at a particular section of the river by stream gauging operation. Gauge reading Discharge Gauge reading Discharge (m) (cms) (m) (cms) 7.65 15 8.48 170 7.70 30 8.98 400 7.77 57 9.30 600 7.80 39 9.50 800 7.90 60 89 10.50 1500 7.91 100 11.10 2000 8.08 150 11.70 2400 1. Develop a rating curve for this stream at this section for use in estimating the discharge for a known gauge reading and fit a linear regression equation for use in estimation of stage for a known value of discharge. Use a value of 7.50 as the gauge reading corresponding to zero discharge. (20 pts) Equation 1 arith 2. What is the coefficient of correlation of the derived relationship? (10 pts) R2² arith Equation 2 log R2 log 3. Determine the stage for a discharge of 3500 cms (5 pts) 4. Determine the discharge for a stage of 15 m (5 pts) NB Do both arithmetic and logarithmic plotsarrow_forward
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