EarthWise TM  Chilled Water Systems Consume Less Energy, Less Capital, and Less Water Donald Eppelheimer, PE Chilled Water...
Annual Energy Consumption Chilled Water Systems Chiller Cooling Tower Water Pumps 1972 2010  73% 9% 18% 56% 27% 17%
Chilled Water System 10,000 cooling tons Dubai, UAE 7 0 C 40 0 C
Benefit of Colder Chilled Water TMBH EWT WTR LPS 576.5 7 C 6 C 7.3 575.6 5 C 9 C 4.8
24000 18000 12000 6000 MWH chilled water 7 0 C 5 0 C chillers tower fans pumps Benefit of Colder Chilled Water
EarthWise Chilled Water Systems <ul><li>Colder chilled water reduces energy consumption </li></ul><ul><ul><li>Chilled wate...
Chilled Water System 10,000 cooling tons Dubai, UAE 7 0 C 40 0 C 5 0 C 44 0 C
Cooling Tower Capital Cost 10000 ton chilled water system 30,000 gpm 20,000 gpm 15,000 gpm 9 cells 23 x 127 ft 386,000 lbs...
Cooling Tower Capital Cost <ul><li>Cooling tower capital cost is  not  a function of chiller capacity </li></ul><ul><li>Co...
Cooling Tower Energy Cost 10000 ton chilled water system 675 hp 360 hp 225 hp 40/34/30 44/34/30 42/34/30 30,000 gpm 20,000...
24000 18000 12000 6000 MWH chilled water 7 0 C 5 0 C tower water 44 0 C chillers tower fans pumps Benefit of Warmer Tower ...
<ul><li>Colder chilled water reduces energy consumption </li></ul><ul><ul><li>Chilled water pumps </li></ul></ul><ul><li>W...
Compressor Energy  lift refrigerant mass flow compressor   work
Compressor Energy lift cooling capacity compressor   work 40 C 7 C 33 C
Thermodynamic   Staging 44  41.5  39  36.5  34 16  13  10  7  4 lift 32.5 C
lift cooling capacity compressor work 44 C 4 C ~32 C Thermodynamic   Staging
24000 18000 12000 6000 MWH chilled water 7 0 C 5 0 C tower water 44 0 C series chillers chillers tower fans pumps Benefit ...
Cooling Tower Water Consumption <ul><li>Chilled water pump power is rejected to atmosphere by the cooling tower </li></ul>...
Chilled Water System 10,000 cooling tons
Cooling Tower Water Savings 10000 ton Chilled Water System <ul><li>Colder Chilled Water   747,100  gallons </li></ul><ul><...
 
 
 
 
EarthWise Chilled Water Systems <ul><li>Colder chilled water saves energy </li></ul><ul><ul><li>Chilled water pumps </li><...
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Don eppelheimer, trane

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Don eppelheimer, trane

  1. 1. EarthWise TM Chilled Water Systems Consume Less Energy, Less Capital, and Less Water Donald Eppelheimer, PE Chilled Water Solutions Trane Company LaCrosse, WI deppelheimer @ trane.com
  2. 2. Annual Energy Consumption Chilled Water Systems Chiller Cooling Tower Water Pumps 1972 2010 73% 9% 18% 56% 27% 17%
  3. 3. Chilled Water System 10,000 cooling tons Dubai, UAE 7 0 C 40 0 C
  4. 4. Benefit of Colder Chilled Water TMBH EWT WTR LPS 576.5 7 C 6 C 7.3 575.6 5 C 9 C 4.8
  5. 5. 24000 18000 12000 6000 MWH chilled water 7 0 C 5 0 C chillers tower fans pumps Benefit of Colder Chilled Water
  6. 6. EarthWise Chilled Water Systems <ul><li>Colder chilled water reduces energy consumption </li></ul><ul><ul><li>Chilled water pumps </li></ul></ul>
  7. 7. Chilled Water System 10,000 cooling tons Dubai, UAE 7 0 C 40 0 C 5 0 C 44 0 C
  8. 8. Cooling Tower Capital Cost 10000 ton chilled water system 30,000 gpm 20,000 gpm 15,000 gpm 9 cells 23 x 127 ft 386,000 lbs 8 cells 23 x 113 ft 341,000 lbs 6 cells 23 x 85 ft 257,000 lbs
  9. 9. Cooling Tower Capital Cost <ul><li>Cooling tower capital cost is not a function of chiller capacity </li></ul><ul><li>Cooling towers are sized by the amount of water they process </li></ul>
  10. 10. Cooling Tower Energy Cost 10000 ton chilled water system 675 hp 360 hp 225 hp 40/34/30 44/34/30 42/34/30 30,000 gpm 20,000 gpm 15,000 gpm
  11. 11. 24000 18000 12000 6000 MWH chilled water 7 0 C 5 0 C tower water 44 0 C chillers tower fans pumps Benefit of Warmer Tower Water
  12. 12. <ul><li>Colder chilled water reduces energy consumption </li></ul><ul><ul><li>Chilled water pumps </li></ul></ul><ul><li>Warmer cooling tower water saves energy </li></ul><ul><ul><li>Condenser water pumps </li></ul></ul><ul><ul><li>Cooling tower fans </li></ul></ul>EarthWise Chilled Water Systems
  13. 13. Compressor Energy lift refrigerant mass flow compressor work
  14. 14. Compressor Energy lift cooling capacity compressor work 40 C 7 C 33 C
  15. 15. Thermodynamic Staging 44 41.5 39 36.5 34 16 13 10 7 4 lift 32.5 C
  16. 16. lift cooling capacity compressor work 44 C 4 C ~32 C Thermodynamic Staging
  17. 17. 24000 18000 12000 6000 MWH chilled water 7 0 C 5 0 C tower water 44 0 C series chillers chillers tower fans pumps Benefit of Series Chillers
  18. 18. Cooling Tower Water Consumption <ul><li>Chilled water pump power is rejected to atmosphere by the cooling tower </li></ul><ul><li>Compressor power is rejected to atmosphere by the cooling tower </li></ul><ul><li>Condenser water pump power is rejected to atmosphere by the cooling tower </li></ul>
  19. 19. Chilled Water System 10,000 cooling tons
  20. 20. Cooling Tower Water Savings 10000 ton Chilled Water System <ul><li>Colder Chilled Water 747,100 gallons </li></ul><ul><li>Warmer Tower Water 427,350 </li></ul><ul><li>Series Chillers 1,750,900 </li></ul><ul><li>EarthWise Total 2,925,350 gallons </li></ul>11,090 cubic meters annually
  21. 25. EarthWise Chilled Water Systems <ul><li>Colder chilled water saves energy </li></ul><ul><ul><li>Chilled water pumps </li></ul></ul><ul><li>Warmer cooling tower water saves energy </li></ul><ul><ul><li>Condenser water pumps </li></ul></ul><ul><ul><li>Cooling tower fans </li></ul></ul><ul><li>Series chillers save energy </li></ul><ul><ul><li>Compressors </li></ul></ul><ul><li>EarthWise saves water </li></ul><ul><ul><li>Chilled water and condenser water pumps </li></ul></ul><ul><ul><li>Series chillers </li></ul></ul>

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