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ENERGY MANAGEMENT ASSIGNMENT
Submitted by:
Students of Mechanical Engineering Part III
Energy Audit: Dhanrajgiri Hostel
TABLE 1: PRELIMINARY QUESTIONNAIRE
Name of Hostel: Dhanrajgiri Hostel Address: Dhanrajgiri Hostel, IIT (BHU), Varanasi-221005 Contact Person: Warden and students Number of Workers: 18 Guards: 2 Number of Students: 380 Number of rooms: 190 Number of days of student residence: 254 Number of mess: 2 Number of Canteen: 1 Appliances used in Hostel
CFLs :25-30 W
Ceiling Fans: 100 W
Tube lights: 60 W
Laptops: 50-70 W
Mobile:5-7 W
Total number of fans in use: 210 Total number of tube lights: 22 Total number of CFLs: 168 Total number of water cooler: 6 Total number of tube lights in canteen: 2 Total number of street lights (Sodium lamp): 2
TABLE 2: ANNUAL ENERGY BILL FOR YEAR 2013 MONTH
January February March April May June July August September October November December
DAYS OF RESIDENCE 31 28 21 30 12 0 10 31 30 21 21 13
TOTAL ENERGY CONSUMPTION(Rs) 228843.25 222097.18 214687.42 274375.20 110594.38 7754.18 105522.20 277343.19 267324.33 190826.78 156062.84 114534.34
Table 5: ELECTRICITY CONSUMPTION FOR LIGHTENING IN HOSTEL Lighting accessories
Power Average (Watt)
Quantity
Approx. hours of service per day
Total working days
Total hours of service
Total energy (MWh)
CFL bulbs
25
168
14
254
3556
14.94
Tube light (Room)
60
22
14
254
3556
4.70
60
32+30+6
15
254
3810
15.54
270
2
11
254
2794
.006
Tube light Lobby+Mess +Toilets Street Sodium lamp
TABLE 6: APPLIANCE DETAILS type
Power(w)
Total number
Approx hr. Of service
Total days
Total hours Of service
Total energy (in MWh)
mobile
5
380
1
254
254
0.482
Laptop
90
380
5
231
1155
39.501
Fan (room)
100
190
18
134
2412
45.828
Fan (mess + Common room)
100
24
12
134
1608
3.859
television
200
1
2
254
508
0.102
Water cooler
700
6
15
106
1590
6.678
CONCLUSION
DHANRAJGIRI HOSTEL in 2013:
Total Electrical Energy consumption for year 2013: 102447 .36 kWh Total expenditure on electricity for year 2013: Rs 486624.96 Total LPG fuel consumption for year 2013: 17768 kg Total expenditure on LPG fuel for year 2013: Rs 88596.86 Net energy consumption for year 2013: 2169965.26 kWh Net energy expenditure for year 2013: Rs 575221.82 Total no. of residents: 380 Total days of residence: 254 Average per head electricity consumption per day: 1.061 kWh Average per head LPG fuel energy consumption per day: 0.184 kg