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la) If a 35 tonne block is raised to 110m and then falls to ground level (in generating mode) in 3 minutes what is the maximum power output of this system?

la) If a 35 tonne block is raised to 110m and then falls to ground level (in generating mode) in 3 minutes what is the maximum power output of this system?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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la) If a 35 tonne block is raised to 110m and then falls to ground level (in generating mode) in 3 minutes what is the maximum power output of this system? lb) The blocks are 3m high and 30 of them are stacked on top of each other. What is the total amount of GPE stored in the stack? Assume that the lower block is not used. State your answer in J 1c) Identify some aspects of this system, or its operation, which will reduce the amount of energy returned to the grid compared to that used to stack the blocks. Be specific in your answers and identify engineering and physics challenges. 1d) Convert your answer in part b to the electrical energy unit of MWh. le) Wellington city typically uses around 500MW of electrical power. How quickly must a single 35 tonne block be allowed to fall from 110m height to provide this level of instantaneous power? marks] 1f) Is this system practical for power generation for towns and small cities? As an engineer discuss the pros and cons of this form of energy storage compared to hydroelectric or battery sources.
Transcribed Image Text:la) If a 35 tonne block is raised to 110m and then falls to ground level (in generating mode) in 3 minutes what is the maximum power output of this system? lb) The blocks are 3m high and 30 of them are stacked on top of each other. What is the total amount of GPE stored in the stack? Assume that the lower block is not used. State your answer in J 1c) Identify some aspects of this system, or its operation, which will reduce the amount of energy returned to the grid compared to that used to stack the blocks. Be specific in your answers and identify engineering and physics challenges. 1d) Convert your answer in part b to the electrical energy unit of MWh. le) Wellington city typically uses around 500MW of electrical power. How quickly must a single 35 tonne block be allowed to fall from 110m height to provide this level of instantaneous power? marks] 1f) Is this system practical for power generation for towns and small cities? As an engineer discuss the pros and cons of this form of energy storage compared to hydroelectric or battery sources.
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