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X. Agnello J. Naveen et al.
5 Explanation of Cost Analysis Using ROI, CBR,
cost-benefit per year and benefit liter per year for CPU
Water requirement is enormous in the case of sugar industry production; the mode of
water supply for this sugar industry to a large extent is from ground water. Condensate polishing unit (CPU) the return on investment in conventional technology is
(−38.5%) and cleaner technology is (87.1%) for Rs. 1 investment. On comparing
the two technologies Cleaner technology (upgraded CPU) shows a higher ROI. In
terms of cost-benefit ratio conventional technology (0.6212) and cleaner technology
(1.887) and so cleaner technology shows a higher benefit. The Environmental advantages of recycling water using CPU is 54,000,000 liter per year. Cost-benefit per liter
in conventional technology is (0.2414) and cleaner technology is (0.0794). Benefit
liter per year in conventional technology is (4.141) and cleaner technology is (12.58).
The benefit liter per year in cleaner technology is higher than the conventional technology. The cost benefit per year is higher in conventional than cleaner technology
due to the quantity of water is higher (recycle of hot water 3 times a day), the annual
cost saving from CPU is Rs. 81 in lakh. per year, as shown in (Tables 1 and 2).
6 Explanation of Cost Analysis Using ROI, CBR,
cost-benefit per liter and benefit liter per year
for Cooling Tower
Cooling tower the return on investment in conventional technology (1881.5 percent)
and (2237.9 percent) for Rs. 1 investment. On comparing the two technologies
Cleaner technologies (upgraded cooling tower) shows a higher ROI and In terms
of cost-benefit ratio conventional technology (26.50) and cleaner technology (23.43)
in term of cost-benefit ratio conventional technology shows a higher benefit. The
Environmental advantages are recycling of water using in cooling tower is
135,000,000 liters per year, Cost-benefit per liter in conventional technology is
(0.0056) and cleaner technology is (0.0064) the cleaner technology shows slightly
higher in value. Benefit liter per year in conventional technology is (176.6) and
cleaner technology is (156.25) conventional technology shows a higher liter of benefits per year than cleaner technology. The annual cost saving from water saving is Rs.
202.5 per year in lakh. Though cleaner technology showed lesser cost-benefit ratio
than conventional technology, the environmental advantage offsets this through water
saving, as shown in (Tables 1 and 2).
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