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AHU condensate usage and appllication

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AHU condensate usage and appllication

  1. 1. Condensation water that collects on a cool surface because the temperature of the surface is below the point at which moisture in the air forms as water droplets. 1E Venkata Raju - Building Manager
  2. 2. Formation of condensation 2E Venkata Raju - Building Manager
  3. 3. Condensate on glass of water 3E Venkata Raju - Building Manager
  4. 4. Condensate water from AHU 4E Venkata Raju - Building Manager
  5. 5. Quantity of condensate depends on 1. Temp of chilled water @ inlet to AHU 2. Percentage of RH in fresh air 3. Percentage of RH in return air 4. Capacity of AHUs 5. Volume of chilled flow 6. Volume of air flow In Hyderabad , More RH during monsoons (70 to 85%), in summer 50 to 70% and in winter 25 to 50%. E Venkata Raju - Building Manager 5
  6. 6. Approximate Condensate quantity @B7 • Based on our intermittent collection sample reports at individual AHUs , floor AHUs , south wing AHUs and north wing AHUs in the last 3 to 4 months , it is approximately 10 to 12 KL per day ( when 37 AHUs running). • Assumed 15 to 18KL per day (When 62 AHUs running) E Venkata Raju - Building Manager 6
  7. 7. Quality of condensate water @B7 1.Hardness  0 to 2 ppm 2. TTDs  30 to 40 ppm 3. PH  6 to 7 4. Clear water 5. Temp 15 to 20 deg.C E Venkata Raju - Building Manager 7
  8. 8. Usage of collected condensate water 1.As drinking water 2.As domestic water 3.As CT water E Venkata Raju - Building Manager 8
  9. 9. For Drinking- Scheme • Approximate cost : RS 2.50 lacs • Savings/Earnings : 6000 (Ltrs) x 20 (days) x Rs.1.00 (per ltr)x 12(months) = 14.40 lacs /year • Note :Every high purity of raw water , output is 80 to90% . E Venkata Raju - Building Manager 9 Condensate water Nano filtration/ RO UV dis infection Chlorination Lab testing as per drinking water standardsDrinking tank
  10. 10. For domestic purpose- Scheme • Approximate cost : Rs 20000/- • Savings/earnings: 12,000 (ltrs)x Rs0.30 x 26 days x 12 months= 11,23,200/- year E Venkata Raju - Building Manager 10 Condensate water Multi grade filter Manual/auto Chlorination Domestic tank
  11. 11. For CT water- Scheme • Approximate cost : Rs 15000/- • Savings : No chemicals required , no scale formation , no bleed off , less power consumption in chillers : Approximately Rs 75 to 80 lacs per year. E Venkata Raju - Building Manager 11 Condensate water Sand filter Collection tank
  12. 12. B7Existing AHUs drain scheme E Venkata Raju - Building Manager 12
  13. 13. B7 Proposed plan to collect condensate water from all AHUs E Venkata Raju - Building Manager 13
  14. 14. Cost estimation • 1. As per quote by Hiline : Rs 1.5 lacs • 2. As per our estimate and as per standard design : Rs 75,000/- • 3. As per present available material : Rs 25000/- (May not be as per standard , but it is good and suitable for our requirement) E Venkata Raju - Building Manager 14
  15. 15. Thanks E Venkata Raju - Building Manager 15

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