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Q1: a) Calm water b) Farmland c) Heather with few bushes d) Suburb e) City See Answer
Q2:Scenario, Assignment Brief and Guidance: Scenario: You are an engineer working on a wind turbine "green energy" project for BCP City Council. Their wind turbine blades are not lasting as long as predicted, and in-service problems do not match predicted life from laboratory test results. You have been tasked with reviewing and evaluating a number of possible materials for the improved manufacture of wind turbine blades, so that they last longer and are more reliable. Blades have failed in the past because of a build-up of electromagnetic charge, excessive heat, corrosion, mechanical strain and failure. Assignment Brief:/nAssignment Brief: Activity 1: Some wind turbine blades have cracked, failed or twisted (reduced 'angle of attack' and hence performance) in-service in much shorter times than predicted. Using the data from your laboratory tests, prepare and present a report that compares and contrasts the following: • torsion test results of four materials (two metallic & two non-metallic) against theoretical results (you may use the theoretical data from APPENDIX 1: Material Shear Modulus Data) • beam deflection test results of four materials (two metallic & two non-metallic) against theoretical results (you may use the theoretical data from APPENDIX 2: Modulus of Elasticity Material Data) Evaluate any differences and suggest why real-world & laboratory test results for wind turbine blades could differ from theoretical data. NOTE: Include evidence, photos and results of your laboratory tests in your report. So that your audience can understand the context of your report, you will need to describe how the structures of the different materials relate to their properties. You will also need to refer to the types of degradation that are most common in the four materials, and how relevant that is to the wind turbine blade application. Use citation/references using the Harvard referencing system where relevant. Show and explain any formulae used and calculations.See Answer
Q3:Activity 2: Some failures in service were caused by a build-up of static electricity (due to electromagnetic hysteresis) and other failures by ther generation of heat (due to elastic hysteresis). Review both types of hysteresis for the materials in activity 1, discussing the level of risk for the above-mentioned failures and particularly for the conditions in service of wind turbine blades. Guidance: College VLE- Teaching Resources HN Global Engineering Science See also APPENDIX 3: Information Sources: Engineering Materials and their PropertiesSee Answer
Q4:Instructions: Need to write a discussion in 200 words on any 1 option. Support your discussion with facts, graphs, pictures and follow all the instructions in the file. Need to write 2 peer responses in 150 words each. Posts and opinions will be provided later.See Answer
Q5:Question 1 Please give your view of the role of solar energy in the United States electricity generation mix. Edit View Insert Format Tools Table 12pt ✓ Paragraph | B IU A T² V | 10 ptsSee Answer
Q6:D Question 2 Please explain why project management is so important a skill set to develop for the continued build out of this resource. Edit View Insert Format Tools Table 12pt ✓ Paragraph | B I U A 10 pts o v T² v |See Answer
Q7:Question 1 You want to convert solar energy into electricity, which of the following can you use? O Photovoltaic [PV] O Solar Thermal Electricity [STE] Concentrated Photovoltaic [CPV] O All of the above Question 2 You are analyzing the PV market, what factors should you consider? Components Prices (Module, Inverter, BOS, ... etc) O Installation and Labor cost O Soft cost (Design & Engineering, Permitting,,, etc) O All of the above 1 pts 1 ptsSee Answer
Q8:Question 7 The Inspector is responsible for: O Designing the PV system according to the local and national standards O Installing PV system according to the local and national standards · O Designing the PV system according to the local and national standards AND Installing 'V system according to the local and national standards O Reviewing the PV system's compliance with codes and standards Question 8 You want to be a PV installer, what certification should you get? O IREC and IEC O NABCEP O NEC 1 pts O UL 1 ptsSee Answer
Q9:Question 5 You are preparing a one-line electrical drawing for a grid-tied PV system with battery backup, which of the following is the right components order (starting from PV modules and ending at the utility Grid): O Inverter-disconnect-meter-PV array-battery O PV array-disconnect-inverter-meter-battery O PV array-battery-inverter-disconnect-meter O PV array-battery-meter-inverter-disconnect Question 6 The Installer is responsible for: 1 pts O Inspect PV system for code compliance 1 pts Designing the PV system according to the local and national standards Installing PV system according to the local and national standards O Designing the PV system according to the local and national standards AND Installing PV system according to the local and national standardsSee Answer
Q10:Question 11 Based on the data presented in both of the PV 2014 IEA roadmap and the STE 2014 IEA roadmap, which solar technology has greater solar market share? O STE is leading the global solar market and PV comes as second place O PV has greater global solar market share than STE O CPV is leading the global solar market The market of the solar technologies is equally split Question 12 Based on Question 11, what is the main reason that one technology outnumbered the other? 1 pts O STE is much simpler technology that uses mirrors and with larger plants it makes economical sense to be leading the solar market with cheaper initial cost O PV prices are going down and the development of new CSP still cannot compete with the low PV prices O CPV generates more per unit area power and it occupies less land space which makes it more economical choice to outnumber PV technology O Since the market is equally shared, that indicates that the prices are all the same for STE, CPV, and PV 1 ptsSee Answer
Q11:Question 9 A Commercial PV systems can fall into which of the following PV market segments? O Residential O Utility scale O Non-residential O All of above Question 10 Commercial PV systems are cheaper to install when compared to: O Residential O Utility scale O Non-residential O All of the above 1 pts 1 ptsSee Answer
Q12:Question 14 From the following video (that you watched in Lesson 1): Video: How Tokelau Switched to Solar Energy. Why diesel generators were used along with the PV array? O PV system is backed up by diesel generators when the sun is not available and batteries are fully discharged O For emergency loads only O To charge batteries when sun is not available O None of the above Question 15 Based on your answer for Question 14, what type of PV configuration is the final system? 1 pts Bimodal system with only battery as second energy source O Hybrid system with Diesel Generator and Battery back-up O PV grid-connected system O None of the above 1 ptsSee Answer
Q13:Question 13 From the following video (that you watched in Lesson 1): https://www.youtube.com/watch?v=r50ECWepd6M What are the system components used in that project and what type of systen, is it? O PV grid-tied system: PV, conduits, inverter, disconnect, production meter, monitoring device, mdp breakers, utility meter O PV grid-tied system: PV, inverter, production meter, mdp breakers, disconnect, utility meter O PV grid-tied system: PV, conduits, disconnect, production meter, monitoring device, mdp breakers, inverter, utility meter O No answer text provided. 1 ptsSee Answer
Q14:Incorrect Question 1 You had a conversation with friends about PV technology, before taking the lesson. Some people used the term PV modules and other used PV panel. Which of the following is correct? A "Module" is a combination of PV cells They are the building block for PV array "Modules" are also known as PV "Panel" and they can be used interchangeably 0/1 pts O All of the aboveSee Answer
Q15:Question 4 On the current-voltage characteristics of PV module, the highest current occurs: At maximum power point When Voltage equals Zero At open circuit condition None of the above ptsSee Answer
Q16:ct Question 5 On the power-voltage characteristics of PV module, the highest power occurs: At maximum power point condition At short circuit condition At open circuit condition None of the above 27 0/1 ptsSee Answer
Q17:Incorrect Question 7 On the current-voltage characteristics of PV module, the Voltage changes with: ⒸHigher irradiance and temperature Lower irradiance and temperature The operating point corresponding to the load requirements All of the above 0/1 ptsSee Answer
Q18:Question 8 You have the choice to design PV system in one of the following cities: Denver, CO (High irradiance with Low temperature) Phoenix, AZ (High irradiance with high temperature) Seattle, WA (Low irradiance with average temperature) Which city will offer ideal operating condition (better energy yield): Seattle, WA Phoenix, AZ Denver, CO They are all the same 27 0/1 ptsSee Answer
Q19:Question 11 The bypass diode is installed on PV module so that: Current always flows through it to prevent cell damage Current flows through it once a day when voltage across the modules equals Zero Cells can be shaded without any damage so this diode is almost never used 0/1 pts Provides alternative path for current to flow when cells are shaded to prevent cell damage when module is shadedSee Answer
Q20:ct Question 12 Blocking diode is used to: Blocks modules from operating at short circuit Blocks over voltage when modules are shaded Protect PV string from acting like a load for other parallel strings when modules are shaded in that string All of the above Need final answers for all the answers 0/1 pts 4See Answer

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