### Recent Question/Assignment

301003 Sustainable Systems Summer 2021
Due: Tuesday 2 February 2021 at 11:59 PM via Turnitin on vWUS
Weight: 35%
Type of Collaboration: Individual
Due: Week 10
Submission: Online via Turnitin
Format: Answering specific questions (to be given as written assessment) on chosen project. The project will be chosen during the workshop.
Length: 2,000 to 3,000 words
Curriculum Mode: Report
It is important to give credit to all the work you refer, whether it is a website, online publication or an article published in a journal. Please refer to the Harvard WesternSydU referencing style. Refer the guide from the WSU library website (https://library.westernsydney.edu.au/main/guides/referencing-citation) for in-text referencing and citations. Please list all the references you have used at the end of your assignment.
Work should be your original work and plagiarism or copying someone else’s work is an offence and will be duly dealt with according to university guidelines. If you have worked with another student it should be specified. You may discuss ideas with other students, however what you submit as a written submission should be of your own effort and be original. Late assignments will be penalised; refer to the Learning Guide.
Scenario for the Assignment
Consider the following scenario based on your ID number. N is the last digit of your ID.
A house has the following characteristics:
• Number of bedrooms = ID ending with 0-3, 3 bedrooms; ID ending with 4-6, 4 bedrooms; ID ending with 7-9, 5 bedrooms.
• No of people = (2 + whole number of (N/2)) (both husband and wife work from 9 AM to 4 PM and each travels separately by car on an average of 50 km; kids walk to school between 9 AM and 3 PM but all reach home by 5 PM).
• For other uses, car travels 120 km per week on an average. Petrol usage by the car is 8 + N*0.4 Km/L. The average cost of petrol is \$1.2/L
• Cook top and hot water uses LPG gas. Energy obtained from gas use is around 90+N*5 MJ/day and the gas utility bills every three months as follows:
First 0-1885 MJ 4.05 c/MJ
Next 1886-3740 MJ 2.76 c/MJ
3741 MJ 2.66 c/MJ
Supply charge 67 c/day
You may research about appropriate pricing of electricity charges from the internet and list this as part of the report. Mark counted with other parts.
• Every person on an average uses 4 hr of lighting in the house. Assume all the lights are incandescent (70 W) for even N values; and 50% incandescent (70 W) + 50% of tube bulb (40 W) for odd N values.
• Assume the house has some insulation (can tolerate 22±3 oC, has single-layered glass window) for N values 0-4; and good insulation (can tolerate 22±7 oC has single layered glass window) for N values 5-9. Air conditioner (A/C) runs when temperature is above or below the tolerable temperature. Use typical monthly temperature as shown in Figure 1. A/C only works when all the people are in the home, i.e from 6 PM to 12 AM on weekdays and anytime between 6 AM and 12 AM during weekends depending on the temperature. Assume monthly average high temperature (Tmax, average)+(15+N*2)% of Tmax,average is valid for day time temperature for the month and ½*(monthly average high + monthly average low) is valid between 6 PM and 12 AM. A/C consumes 2500 +200*N W when it runs. Chose appropriate approximation and calculation procedure as needed.

Figure 1: Average monthly temperature in Parramatta, Bureau of Meteorology, Australia, 2020
Report structure and marking criteria
Your report must respond to the following
a. Executive summary (2%)
b. Problem definition and context as an introduction (2%)
c. Literature summary on the status of Australian energy use and carbon emission:
Search the internet to look for sources of energy, per capita energy use and per capita carbon emission in Australia and worldwide and write a summary (key figures and tables can be included with the text). Your summary should demonstrate the position of Australia with respect to other countries and the future outlook in terms of sources, key energy users, energy use, carbon emission and climate change. Read about Doha amendment to Kyoto protocol, Paris agreement to which Australia has ratified and indicate how Australia could meet it and what are the impediments. When it comes to a household what percentage of per capita values of energy and carbon emission is expected. (10%)
d. What organisations (regulatory and/or voluntary) in Australia promote energy efficiency in general and in which way, for products you use in the chosen state? State selection guide: NSW (ID ending in 0 or 1), VIC (ID ending in 2 or 3), QLD (ID ending in 4 or 5), SA (ID ending in 6 or 7), WA (8 or 9). (2%)
e. Analysis of household: Summarise all the energy consuming devices including car and annual energy consumption (in KWh) and CO2 emission (metric ton - CO2 equivalent) for your case in a Table. Show all calculations. (5%)
f. Identify all relevant information regarding possible alternatives and identify opportunities to reduce energy consumption (especially CO2 emission and cost). (5%)
g. Perform the cost benefit analysis (real payback period with 5% per annum interest) for two improvement options. You can use Excel but a sample calculation sheet must be provided. (5%)
h. Conclude the best option of the two in (g). Provide reasoning (i.e., in terms of energy efficiency, cost, environmental benefit, % reduction in per-capita CO2 emission and energy consumption) (3%)
i. References (1%)