Home Solutions a. Explain the difference between electrical energy and electrical power, and state the units used for each.
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This tutormarked assignment (T213 TMA 01) must be submitted by 12 noon (UK local time) on 1 December 2016.
This module requires all assignments to be submitted electronically. To submit an assignment, please follow the link(s) from your StudentHome page to the online TMA/EMA service.
If you foresee any difficulty with submitting your assignment on time then you should contact your tutor well in advance of the cutoff date.
For further information about policy, procedure and general submission of assignments please refer to the Assessment Handbook, which can also be accessed via your StudentHome page.
Where a question asks for a calculated numerical answer, this should be given to an appropriate number of significant places. Inappropriate answers will be penalised.
Question 1 (17 marks)
Table 1 Input and output forms of energy for some different types of energy system
Type of system
Hydroelectric dam generating
PV (solar) cell
Electric table fan
kWh = 3.6 MJ. Give your answer to 3 significant figures.
Question 2 (12 marks)
List the key ways in which the USA and the UK differ in:
Make sure your list includes the following, along with any other points of interest:
the role played by coal and oil in the two countries
the energy selfsufficiency of the two countries in 2009, with comments on their natural resources, imports and exports
differences in per capita energy consumption
the relative contributions of oil and natural gas to energy consumption.
Your answer should be no longer than 300 words.
Question 3 (16 marks)
atomic masses of carbon and oxygen are 12 and 16 respectively.)
Question 4 (12 marks)
Figure 1 2009 primary energy and delivered energy
Using your own words, define the terms primary energy and delivered energy.
Question 5 (15 marks)
Question 6 (13 marks)
Figure 1 below is a McKelvey diagram showing the relationship between reserves, conditional resources and hypothetical resources.
Figure 2 McKelvey diagram (repeat of Energy Book 1
Figure 5.17 (a)).
Question 7 (15 marks)
This TMA assesses the following learning outcomes.
Knowledge and understanding
The forms of energy and the various definitions of ‘sustainable’ energy, and the relevance of sustainability to the design and implementation of energy systems.
The principal sources of primary energy in use today, their development over the past century, and the general patterns of world, regional and national energy consumption.
The basic principles underlying the design and use of energy supply systems, and the basic principles underlying the efficient use of energy.
The pollutants produced through the combustion of fossil fuels, their environmental impacts and the amelioration of these (for coal).
Critically evaluate differing explanations and arguments for the relative resource depletion impacts of different energy technologies (for coal).
Use appropriate scientific and mathematical techniques applied to energy related issues or contexts.
Analyse information about energy and its use, from a variety of sources and using ICT tools.
Clearly articulate ideas, proposals and arguments relating to energy, in a variety of ways for differing contexts and audiences.
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