Page 171 - ASBIRES-2017_Preceedings

EVALUATION OF ENERGY CONSUMPTION AND ENERGY SAVING POTENTIAL IN THE SMALL AND
MEDIUM ENTERPRISES OF SRI LANKA BASED ON FIVE CASE STUDIES

The data collected through loggers were from the companies. First the company’s
analyzed from the software and energy package of paying to the Ceylon Electricity
savings have been identified. Then those Board has been identified and the average
data were comparatively analyzed with the cost per unit was calculated as there are
total energy consumptions and energy various packages for industry users. Then
saving potential has been detected for the the cost is calculated via multiplying the unit
organizations, categorized with the cost and the energy saving. So the cost
processes or machineries. Then the next part saving potential is identifying with the total
was identifying the cost saving potential cost for energy by the firm. .
Table 3: Energy and cost saving potential of company A

Recommendation Projected Saving
Energy Cost
Electrical
(kWh/month), kVA (Rs./month) (Rs./Annum)
Improvement of power factor 14 15,800 189,600
correction (kVA)

Load Shifting (BMM) - 68,250 819,000

Load shifting (General) - 9,132 109,582

Loos belts replacing at Extruder # 6 2,200 30,794 369,533
Switch off lights & fans during lunch 293 3,200 38,400
break

Compressed air leak prevention 3,000 42,000 504,000

Pressure regulation 1,516 21,228 254,742

Introducing day light system 750 8,250 99,000

VSD for recycle machine 1,280 17,921 215,051

Replace CFL with LED in production
floor 1,740 19,789 237,467

Total 10,778 236,364 2,836,374

Total energy 148197 2,078,120 24,937,435

Saving percentage/ (%) 7 11 11

Table 3 represents the energy saving
potentials through various recommendation 5 RESULTS AND DISCUSSION
in factory A. The same procedure conducted The total energy saving potentials as
to calculate the energy saving potentials in well as cost saving potentials from energy of
other companies. five companies include in different sectors
are calculated with the data collected and

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