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DDI-HeatExchangers Inc. ddi-heatexchangers DDI Since 1980

DDI-HeatExchangers Inc. www.ddi-heatexchangers.com DDI Since 1980. Poster. Sketch Anaerobic Digestion. Advantages. These 2 HX have been in continuous non-stop operation for 9 years without any maintenance. Napanee. Pembroke. Comparison Flier. Payback is possible in 1 year.

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DDI-HeatExchangers Inc. ddi-heatexchangers DDI Since 1980

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  1. DDI-HeatExchangers Inc.www.ddi-heatexchangers.comDDI Since 1980

  2. Poster

  3. Sketch Anaerobic Digestion

  4. Advantages

  5. These 2 HX have been in continuous non-stop operation for 9 yearswithout any maintenance

  6. Napanee

  7. Pembroke

  8. Comparison Flier

  9. Payback is possible in 1 year

  10. Energy Saved (15 Years)

  11. Energy ROI

  12. Electricity Cost

  13. Cogeneration

  14. DDI HX

  15. DDI Outline

  16. Tube Disadvantages –Heat Area

  17. Tube Disadvantages - Length

  18. Tube Disadvantages - Sludge

  19. DDI Sketch w/ advantages

  20. SPIRAL technology gets BLOCKED, Max. gap is only 1” and has pins for other liquid (no % solids there). - 1“-

  21. TUBE Technology cannot have same flow for both liquids, and 3” gap each, at the same time.

  22. Drawing

  23. Vitalix 65-70 % Solids Molasses 12 Sep 2007 • Vitalix Inc. has been using the DDI heat exchanger almost a year now with very positive results. Raw molasses at 65% to 70% solids is running on one side and hot water on the other. We have had no problems with plugging or pressure build up. We are also very pleased with the effectiveness of this unit in heat transfer. Thank you for your help and support. Plant Mgr.  Doug Olson 308-762-8358 Vitalix Inc. Alliance NE.

  24. Pembroke Direct Sludge-to-Sludge • From: David Atkinson Sent: September 7, 2007 11:23 AMTo: 'erwin@ddi.ca'Subject: Letter of Reference • The Pembroke Pollution Control Centre is using the DDI Heat Exchanger with very positive results.  Raw sludge with an average temperature between 11* C to 19* C flows through one side of the heat exchanger and re-circulated sludge from the digesters with temperatures ranging in the high thirty’s flows through the opposite side of the heat exchanger.  This has resulted in substantial savings as the raw sludge is increased in temperature prior to entering the digesters at no expense to the City sewage system.  After almost two years of operation no plugging has occurred and it works as per specification.  I am very satisfied with the results of this piece of equipment.  • David Atkinson • City of Pembroke • Utilities Superintendent • Office 613-735-6821 ext. 1490 • Fax    613-732-7028

  25. Doors opened after 8.5 years

  26. The Gaskets after 8.5 Years

  27. Inside – Clean and without damage after 8.5 years

  28. Viscosity Influence on required area

  29. Representatives

  30. Links • Personnel (http://www.ddi-heatexchangers.com/resume.htm) • Other Products (http://www.ddi-heatexchangers.com/other_products.htm) DDI can supply Parker Boiler & Pumps too DDI has PIG CLEANING option

  31. Sample Quote

  32. Tulsa OK, Via Ashbrook and HDR

  33. Rialto- EnerTech via HDR 11 Heat Exchangers- all phases.

  34. Molasses with 65 % Solids Vitalix

  35. DDI HX and Boiler set DDI in Pontiac with Boiler combined- (Cover removed)

  36. Building’s Sewage Heat Recovery RECOVERING HEAT from the Hot liquids leaving the Suites (i.e. Sewagewith % Solids) at about 20-28 deg C. Directly to… Cold Water entering the Building before the Boiler, at about 2-10 deg C.

  37. Man-Hole (video on the web)

  38. Davit Arm – swings door in limited space

  39. DDI Logo - Final

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