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Q1:*Water enters an evaporator with a quality 20% and flow through a vertical pipe with a diameter 20 mm and length 4.5 m. Heat is added uniformly along the pipe length with the gradient of 15 kW/m. The pressure at the pipe inlet was 7 MPa and the mass flux is 600 kg/m².s. Calculate the pressure at the pipe exit and the flow regime at the inlet and exit assuming that the slip ratio is equal to (liquid density/vapor density)^(1/3)See Answer
Q2:Problem 1. (6 points) You can deposit up to $6,500 in a Roth Individual Retirement Account (Roth IRA) before the age of 50 and $7,500 if you are 50 or older. In a Roth IRA, taxes are paid on the income in the year it is earned, but the withdrawals from the account after age 65 are not taxed. (a) Assume the maximum investment amount is constant, and that you made the maximum investment from ages 25 until 49, and then you didn't invest another dime after age 49. How much would your account be worth when you were 75 assuming a 7% annual interest rate compounded annually? (b) Now assume that you didn't start investing until you were 50, and you made the maximum investment until age 75. How much would your account be worth when you were 75 assuming a 7% annual interest rate compounded annually?See Answer
Q3:Problem 2. (5 points) A friend is planning her career and thinks she would like to have an income of $10,000 per month for 20 years beginning at age 65. Starting at age 25, how much would she have to invest per month over her 40-year career to achieve her goal? Assume that she will earn 7% per year on her investments (APY).See Answer
Q4:Problem 3. (6 points) The new fishing boat that you've been looking at has everything you need, but it's a bit out of your price range. Your local bank offers you a loan with an APR of 6% for this $35,000 boat. Fortunately, you received a $5,000 signing bonus, and you plan to use that toward the purchase of your boat. (a) What is your monthly payment for this 10-year loan? (b) What is the equivalent value of these payments at the end of 10 years?See Answer
Q5: Q.1 [14 marks] = Figure Q1 shows a vertical pressure vessel consisting of a cylindrical shell (radius r = 0.50 m, and length, L 20 m) and two hemispherical heads with the same radius as the shell. The vessel is pressurised to 125 bar. It is constructed of carbon steel with a density of p = 8000 kg m-³ and a yield strength of Oy = 800 MPa. support Part A head B shell CP303 Materials, Processing, Applications —A- head L Figure Q1: Vertical Pressure Vessel (a) Calculate the thickness, t, of the cylindrical shell and hemispherical heads required to withstand the internal pressure if the maximum allowable stress, Gallow, is one-half of gy. PLEASE TURN OVER [2 marks] Page 2 of 9 [Q1. continued] (b) Calculate the mass (in kg) of the cylindrical section and hemispherical heads. Express the combined head and shell mass as a weight (in N) and calculate the resulting stress, ow, produced in the vessel wall at the point where the lower head and shell meet (position A in the figure). [4 marks] (c) Using the thickness calculated in (a), calculate the hoop and longitudinal stress in the cylindrical shell arising from the internal pressure. Then calculate the combined (total) longitudinal stresses due to the internal pressure and the weight of the shell and upper head at the position A. Also, calculate the total combined stresses in the hoop direction at this position. [4 marks] (d) Similarly, consider position B at the junction between the upper head and shell. Determine the combined longitudinal and hoop stresses at this point. [4 marks] PLEASE TURN OVER CP303 Materials, Processing, Applications Page 3 of 9 Q.2 [11 marks] Consider a pressure vessel with identical dimensions and materials of construction to that in Figure Q1 above but operating at a higher pressure of 180 bar and with an increased shell thickness of t = 2.25 cm. (a) Calculate the hoop and longitudinal stress in the cylindrical section of the revised vessel. [2 marks] (b) Assume that there was uniform internal corrosion in the cylindrical section of the vessel at a rate of 0.8 mmpy. How many years would it take the vessel to become unsafe - i.e. the point at which the hoop stress exceeds the yield strength? (c) The vessel develops a semi-circular crack in the cylindrical shell (size, 2a = 0.2 cm, Y = 0.70) oriented in the hoop (circumferential) direction. Determine whether this crack is stable if the fracture toughness of the carbon steel is KIC = 15 MPa m [3 marks] 112. [2 marks] (d) Demonstrate that for the situation in (c) above, this vessel is not a 'leak before break' design. Hence, calculate the value of Kic that would be required to make this vessel leak before break. PLEASE TURN OVER CP303 Materials, Processing, Applications [4 marks] Page 4 of 9See Answer
Q6: Q.1 [14 marks] = Figure Q1 shows a vertical pressure vessel consisting of a cylindrical shell (radius r = 0.50 m, and length, L 20 m) and two hemispherical heads with the same radius as the shell. The vessel is pressurised to 125 bar. It is constructed of carbon steel with a density of p = 8000 kg m-³ and a yield strength of Oy = 800 MPa. support Part A head B shell CP303 Materials, Processing, Applications —A- head L Figure Q1: Vertical Pressure Vessel (a) Calculate the thickness, t, of the cylindrical shell and hemispherical heads required to withstand the internal pressure if the maximum allowable stress, Gallow, is one-half of gy. PLEASE TURN OVER [2 marks] Page 2 of 9 [Q1. continued] (b) Calculate the mass (in kg) of the cylindrical section and hemispherical heads. Express the combined head and shell mass as a weight (in N) and calculate the resulting stress, ow, produced in the vessel wall at the point where the lower head and shell meet (position A in the figure). [4 marks] (c) Using the thickness calculated in (a), calculate the hoop and longitudinal stress in the cylindrical shell arising from the internal pressure. Then calculate the combined (total) longitudinal stresses due to the internal pressure and the weight of the shell and upper head at the position A. Also, calculate the total combined stresses in the hoop direction at this position. [4 marks] (d) Similarly, consider position B at the junction between the upper head and shell. Determine the combined longitudinal and hoop stresses at this point. [4 marks] PLEASE TURN OVER CP303 Materials, Processing, Applications Page 3 of 9 Q.2 [11 marks] Consider a pressure vessel with identical dimensions and materials of construction to that in Figure Q1 above but operating at a higher pressure of 180 bar and with an increased shell thickness of t = 2.25 cm. (a) Calculate the hoop and longitudinal stress in the cylindrical section of the revised vessel. [2 marks] (b) Assume that there was uniform internal corrosion in the cylindrical section of the vessel at a rate of 0.8 mmpy. How many years would it take the vessel to become unsafe - i.e. the point at which the hoop stress exceeds the yield strength? (c) The vessel develops a semi-circular crack in the cylindrical shell (size, 2a = 0.2 cm, Y = 0.70) oriented in the hoop (circumferential) direction. Determine whether this crack is stable if the fracture toughness of the carbon steel is KIC = 15 MPa m [3 marks] 112. [2 marks] (d) Demonstrate that for the situation in (c) above, this vessel is not a 'leak before break' design. Hence, calculate the value of Kic that would be required to make this vessel leak before break. PLEASE TURN OVER CP303 Materials, Processing, Applications [4 marks] Page 4 of 9See Answer
Q7:1.Student has provided general flow and data required for this work. 2.course is more related to Pharmaceutical so please do the necessary and not make it too much like a chemical engineering based to provide- 1.just researching all the required resources for the report 2.want all the resources, data and references to write and do calculations in the report 3.some data is given, others either need to be found or use experimental data from other sources/n Assignment 2-MECH3002 Thermal resistances - Conduction and Convection – Thermal Mug Manufacturing This assessment will be marked out of 10 using the Rubric attached. The assessment is worth 10 % of the total unit mark. This assessment is to be completed in groups of 1-3 individuals. 1. Learning Outcomes: ● Apply theory learned in the lectures in practice Problem solving using engineering skill and analytical thinking Understand the correlation between convection and conduction Determine the importance of convection and conduction for specific projects ● 2. Background: We have studied the mechanism of conduction and convection. We also learned that there is a resistance associated with the traveling of heat in solids (conductive resistance) and in fluids (convective resistance). With this knowledge, it is possible to predict the heat loss in different bodies with different geometries. Particularly, we have studied regular shaped bodies such as walls, cylinders and spheres. Following the design of a thermos in Assignment 1 completed in Week 4, you are to use this knowledge and, as engineers, actually manufacture a thermal cup/mug in Assignment 2, Thermal cup/mugs (also known as travel mugs) are used to keep a beverage warm for a given period by making use of insulating materials and high-performance design. Patents for thermal cups date as far back as 1958. A relatively recent thermal cup patent issued in 2004 defines its invention as: "A thermal cup includes a hollow inner cup body having an inner surrounding wall and an outer surrounding wall that confine an enclosed chamber therebetween, and an outer cup body made of a heat insulating material and disposed to surround the outer surrounding wall of the inner cup body. The inner surrounding wall further confines a space for containing liquid therein. The outer cup body cooperates with the outer surrounding wall of the inner cup body to confine a clearance therebetween. A thermal conductor unit is provided on the outer surrounding wall of the inner cup body, and is disposed in the clearance." (Luo, 2004). 112 111 12 13- FIG. 1 PRIOR ART Figure 1: Patent sketch of a thermal cup from (Luo, 2004) 3. Your specific tasks are to: 1) Add the effect of convection to your previously submitted Assignment 1. Display (or estimate) all the heat transfer coefficients (conductive k and convective h) involved. Calculate the expected heat transfer and the expected energy loss over a 3-h period. 2) Determine the significance of convection in your design and then determine whether your original project will have any alterations before manufacturing. 3) Manufacture the cup/mug you have designed. You are actually going to manufacture (create, build, construct) the product you have designed. You are not allowed to buy a product ready off the shelf and present it as yours. But you are welcome to use off the shelf components or pieces that you may need. The requirements are: a. Total volume (dimension) cannot exceed 1.5 L b. Should hold at least 300 mL of liquid C. Cannot weigh more than 700 g d. Should be "liquid proof", i.e., cannot leak or deteriorate when in contact with liquids. e. Should keep contents at a temperature higher or equal to 55 % of the original temperature for 3 hours. f. Aesthetics will not be marked 4) Record the making of your cup/mug. You are to make a short video (2 min to 5 min) of you making your product. Edits are welcome. You don't have to record every detail, but the overall making of the product. Not all group members need to appear in the video. 4. Deliverables There are three straight forward deliverables for this activity: the project, the product and the video. They are described in more detail hereafter: A short 2-page document addressing all the tasks set in Section 3. It should have an executive summary (also known as an abstract in this case) that condenses to one paragraph what your product is and what it does (max 300 words). It should also contain the convection calculations, your decision on whether to modify the original product or not and what the modifications are (if any). This report should also contain the REFERENCES for everything you used that was created/published by others or previously. You can also reference your Assignment 1. The thermal cup/mug itself. The actual product that will be tested against the requirements given and against a professional cup/mug in the Macquarie workshop later in the semester. A 2 to 5 min long video showcasing your working on your thermal cup/mug. Video link should be in your project written report. 5. Assessment This assignment contributes towards the assessment of MECH3002. You will work for this project and hand in a report. The report will be marked out of 100. ■ Report due at 11:55 PM 29th October 2023. Unless a Special Consideration request has been submitted and approved, a 5% penalty (of the total possible mark) will be applied each day a written assessment is not submitted, up until the 7th day (including weekends). After the 7th day, a grade of '0' will be awarded even if the assessment is submitted. Must reference sources of information and include a complete reference list. The report must be well written, concise and clear. Document must address all aspects outlined in Section 3 Your specific tasks. 6. Rubric Assessed Marks capability (Total 100) Project Product Video 10 10 10 25 25 20 Competencies to be demonstrated for High Distinction Updated calculations for heat loss and energy loss are presented. The estimation for the cup/mug performance still meets the requirement set for the product. Discussion of whether project should be modified or not in light of the convection now being accounted. Delivering a product Product meets geometry, weight and holding content requirements Your product meets the performance requirement Your video is within the time limit, shows at least one member of the group working on your product, shows the final product (result) and is uploaded into a free video hosting website by the assignments due date. 7. Resources You can be creative about your project. Here are some videos to give you some inspiration on how to start your assignment. https://www.youtube.com/watch?v=mPJoCRbnFIE https://www.youtube.com/watch?v=oL86W7GmPWk https://www.youtube.com/watch?v=BRsBwwwoC U https://youtu.be/PY5Kryq62SQSee Answer
Q8:Questions 1- Concentration of the feed 2- Temperature of the chiller 3- How do you determine concentration of Ethanol and Methanol in the ADV FIXTURE. 4- Draw the apparatus and give as much detail as you can. 5- How do you measure the concentration of the samples 6- Something about Fenske equation (make sure you know all the steps on how to calculate the number of stages) 7- VLE stand for 8- How to calculate average volatility? 9- What is the actual number of trays in the distillation in 1954 and ADV?See Answer
Q9:Engineering Economy Project Water desalination is a major process to supply clean drinking water in many countries around the World. The International Atomic Energy Agency has developed economic tools to assess the economic aspects of water desalination using a range of technologies. Using the IAEA Desalination Economic Evaluation Programme (DEEP) https://www.iaea.org/topics/non-electric-applications/nuclear-desalination You are requested to work with your team to estimate the water desalination cost in terms of water production and energy consumption as requested below 1. Select the Power Plant type for your Desalination Plant and justify your selection. 2. Investigate the effects fuel option on the water and energy production costs 3. Investigate the effects of technology option 4. Select a power plant technology and justify your selection 5. Investigate the effects of Power Plant Efficiency on the water and energy costs 6. Investigate the effect of the Desalination Capacity on the water and energy costs 7. Investigate the effects of Carbon Prices on the water and energy costs 8. Investigate the relationship between discount rate and water and energy production costs for your selected process 9. Investigate the effects of interest rates on your production costs on the water and energy costs 10. Investigate the relationship between fuel escalation rate and water and energy production costs 11. Comment on the results and make recommendationsSee Answer
Q10: Energy harvesting using CO2 cell can remove CO2. (1%) a) Yesb) NoSee Answer
Q11: 9. Rank long term risks associated with EOR storage: 1) caprock integrity; 2) micro-seismicity (earthquake); 3) fresh groundwater contamination; 4) loss of production. (1%) а) 1, 2, 3, 4 b) 2, 3, 4, 1 с) 1, 3, 4, 2 d) 4, 3, 2, 1See Answer
Q12: 4. In innovative energy generation, there was the introduction of vibration energy harvesting. Ocean waves are known to have high energy contents and are potential energy source. Draw conceptual design of an ocean wave harvesting system. (use your imagination) (4%)yourSee Answer
Q13: . Vibration energy harvesting is based on the following principle: (3%) By converting _____energy to_____energySee Answer
Q14: 35. Supercritical CO2 turbine driver is dependingthat is commonly qualify as: (1%)on the thermal process a) Rankine cycle b) Brayton cycle c) Carnot cycled) Lenoir cycleSee Answer
Q15: - Name three gases emitted from a coal fire power plant: (2%)See Answer
Q16: 39. Continue from above? What in your opinion resulted in the consistency/discrepancy from the graph and your data? (3%)See Answer
Q17: 46. The oil production based on the natural pressurized field condition is called. (1%) a) Primary production b) Secondary production c) Tertiary productionSee Answer
Q18: 16. In fossil power plant, higher temperature would mean better combustion and less emission problems. But this means a better steel is needed. Describe the advantages and disadvantages of ferritic steel and martensitic steel: (4%)See Answer
Q19: 34. In global warming, 1° temperature rise means what % of atmospheric water vapor increase? (1%) а) 1%b) 3%с) 4%d) 8%See Answer
Q20: 20. Best element for making HYDRA must have a high: (1%) a) Molecular weight b) Ionic radii c) Proton numberSee Answer

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