Thissectionrequiresyoutowriteareportasawayofansweringquestions.Please

consider the following scenario based on your ID. N is the last digit of your ID.A house

has the following characteristics:(N=9)

The number of bedrooms = 3 bedrooms.

No of people = (1 + whole number of (N/2)) (both husband and wife are working from 9

AM to 4 PM and each travels separately by car on average N*5 km; kids walk to school

between 9 AM and 3 PM but all reaches home at around 5 PM).

Forotheruses,cartravels N*11km perweekonaverage.Caruses the petrol at8+

N*0.4 Km/L. The average cost for petrol is $1.2/L (N=9)

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

Find the appropriate pricing of electricity charges from your internet research, and list 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 odd N values; and 50% incandescent (70 W) + 50% of tube bulb

(40 W) for even N values.

Assume the house has some insulation (can tolerate 223o C, has single-layered glass window)forNvalues0-4;andgoodinsulation(cantolerate22N*0.5o Chassingle-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 Below. A/C only works when all the people are in the home, i.e from 6 PM to 12 AM on weekdaysandanytimebetween6AMand12AMduringweekendsdependingonthe

temperature. Assume monthly average high temperature (Tmax, average) +(15+N*2)% ofTmax, the averageisvalidfordaytimetemperatureforthemonthand*(monthly

average high + monthly average low) is valid between 6 PM and 12 AM. A/C consumes

2500+200*NWwhenitruns.Choseappropriateapproximationsandcalculation

procedures as needed.

Month - Low - High

Jan - 18 - 29

Feb - 18 - 28

Mar - 16 - 26

April - 13 - 24

May - 10 - 21

June - 8 - 18

July - 6 - 17

Aug - 7 - 19

Sep - 9 - 22

Oct - 12 - 24

Nov - 14 - 25

Dec - 16 - 28

Performthecost-benefitanalysis(realpaybackperiodwith10%perannum

interest)fortwoimprovementoptions.Canuseexcelbutasamplecalculation

sheet should be given.