Geothermal AIA

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AIA certified geothermal presentation

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Geothermal AIA

  1. 1. Geothermal Heat Pump Seminar Kelso-Regen Associates, Inc.
  2. 2. Introduction <ul><li>BASICS OF GEOTHERMAL SYSTEMS </li></ul><ul><li>DETAILS OF THE HEAT EXCHANGER </li></ul><ul><li>DETAILS OF THE BUILDING SYSTEM </li></ul><ul><li>HELPFUL TIPS AND ADVICE </li></ul>
  3. 3. <ul><ul><li>GEOTHERMAL HEAT PUMPS </li></ul></ul><ul><ul><li>GROUND SOURCE </li></ul></ul><ul><ul><li>HEAT PUMPS </li></ul></ul><ul><ul><li>GHP </li></ul></ul><ul><ul><li>GEOEXCHANGE </li></ul></ul>INTERCHANGABLE TERMS General Information
  4. 4. General Information <ul><li>BASIC DESCRIPTION: </li></ul><ul><ul><li>NO OUTDOOR EQUIPMENT </li></ul></ul><ul><ul><li>LEED & ENERGY STAR CREDITS </li></ul></ul><ul><ul><li>REDUCE ENERGY CONSUMPTION & MAINTENANCE </li></ul></ul><ul><ul><li>OLD TECHNOLOGY </li></ul></ul><ul><ul><li>DOES NOT USE THERMALLY ACTIVE ZONES </li></ul></ul><ul><ul><li>MOVES HEAT INSTEAD OF CREATING IT </li></ul></ul>
  5. 5. General Information <ul><li>HOW IT WORKS – COOLING: </li></ul>
  6. 6. General Information <ul><li>HOW IT </li></ul><ul><li>WORKS - HEATING: </li></ul>
  7. 7. Three heat exchanger types: <ul><li>OPEN </li></ul>
  8. 8. Three heat exchanger types: <ul><li>HYBRID </li></ul><ul><li>CLOSED . . . </li></ul>
  9. 9. Three heat exchanger types: <ul><li>CLOSED: HORIZONTAL </li></ul>
  10. 10. Three heat exchanger types: <ul><li>CLOSED: VERTICAL </li></ul>
  11. 11. Three heat exchanger types: <ul><li>CLOSED: POND/LAKE LOOPS </li></ul>
  12. 12. Pros: <ul><li>NO OUTSIDE EQUIPMENT </li></ul><ul><li>NO OPERATING NOISE </li></ul>
  13. 13. Pros: <ul><li>COST EFFICIENCY </li></ul><ul><li>3 – 5 YEAR PAYBACK </li></ul><ul><li>TAX INCENTIVES, REBATES, GRANTS </li></ul>
  14. 14. Pros: <ul><li>VERSATILITY </li></ul>
  15. 15. Pros: <ul><li>Green and LEED points </li></ul>
  16. 16. Cons: <ul><li>Unexpected ground conditions </li></ul>
  17. 17. Cons: <ul><li>Neighbor annoyance </li></ul>
  18. 18. Cons: <ul><li>Dirty Process </li></ul>
  19. 19. Cons: <ul><li>Land Area Required </li></ul>
  20. 20. Site Prep <ul><li>Survey </li></ul><ul><li>(HVAC load calculation) </li></ul>
  21. 21. Site Prep - Horizontal <ul><li>Trenches with straight tubing </li></ul>
  22. 22. Site Prep - Horizontal <ul><li>Excavations with “slinky” loops </li></ul>
  23. 23. Site Prep - Vertical <ul><li>Test Bore Holes </li></ul>
  24. 24. Site Prep - Vertical <ul><li>Purpose... </li></ul>
  25. 25. Site Prep - Vertical <ul><li>Drill Log </li></ul><ul><li>Casing? </li></ul>
  26. 26. Thermal Conductivity Test <ul><li>Testing Equipment </li></ul>
  27. 27. Thermal Conductivity Test <ul><li>GRTI Test Data </li></ul><ul><li>GRTI Test Report </li></ul>
  28. 28. Drilling Equipment <ul><li>Drilling Rig </li></ul>
  29. 29. Drilling Equipment <ul><li>Trailer with drill and casing piping </li></ul>
  30. 30. Drilling Equipment <ul><li>Water tanks & fuel tank trailers </li></ul>
  31. 31. Drilling Equipment <ul><li>Grout & Grout Pump </li></ul>
  32. 32. Drilling Equipment <ul><li>Pipe Loops </li></ul>
  33. 33. Drilling
  34. 34. Drilling: before <ul><li>Certified Driller with water-well driller & loop installer license </li></ul>
  35. 35. Drilling: <ul><li>Site Survey – hole spacing minimum 20’ apart </li></ul>
  36. 36. Drilling: process <ul><li>Drill holes (with casing if needed) </li></ul>
  37. 37. Drilling: process <ul><li>Insert BHE & Pressure Test Piping </li></ul>
  38. 38. Drilling: process <ul><li>Grout </li></ul>
  39. 39. Drilling: process <ul><li>Grout </li></ul>
  40. 40. Drilling: process <ul><li>Grout </li></ul>
  41. 41. Drilling: process <ul><li>Grout fill process </li></ul>
  42. 42. Drilling: process <ul><li>Remove Casing (if used) </li></ul>
  43. 43. Drilling: trench system <ul><li>Trench </li></ul><ul><li>Pipe manifold, connection to wells </li></ul>
  44. 44. Drilling: trench system <ul><li>Create Reverse Return Circuits to Balance Pressure </li></ul>Horseshoe RR Circuit, Single Vault Arrangement Straight RR Circuit, Singe Vault
  45. 45. Drilling: trench system <ul><li>Underground Vault </li></ul>
  46. 46. Drilling: trench system <ul><li>Pipe from vault to building </li></ul>
  47. 47. Drilling: trench system <ul><li>Flush and Purge </li></ul>
  48. 48. Building Construction: HVAC Licensed Contractor
  49. 49. Building Construction: HVAC inside the building <ul><li>Ground to Building Transition </li></ul>
  50. 50. Building Construction: HVAC inside the building <ul><li>Base mounted VFD pumps </li></ul>
  51. 51. Building Construction: HVAC inside the building <ul><li>Make-up Water </li></ul>
  52. 52. Building Construction: HVAC inside the building <ul><li>Air Separator </li></ul>
  53. 53. Building Construction: HVAC inside the building <ul><li>Expansion Tank </li></ul>
  54. 54. HVAC UNITS: <ul><li>Vibration Isolation </li></ul>
  55. 55. HVAC UNITS: <ul><li>Thermostat </li></ul>
  56. 56. HVAC UNITS: <ul><li>Differential Pressure Sensor (DPS) </li></ul>
  57. 57. HVAC UNITS <ul><li>18 MANUFACTURERS </li></ul><ul><ul><li>AMERICAN REFRIGERATION INSTITUTE (ARI) 330 OR NEW ISO STANDARD 13256-1 FOR CLOSED LOOP GEOTHERMAL UNITS </li></ul></ul><ul><ul><li>DESUPERHEATERS </li></ul></ul>
  58. 58. Tips and Advice <ul><li>SYSTEM PUMPS </li></ul><ul><li>CONTRACTORS </li></ul>
  59. 59. Tips and Advice <ul><li>OTHER CONSIDERATIONS </li></ul><ul><ul><li>ENVIRONMENTAL EFFECTS </li></ul></ul>
  60. 60. Tips and Advice <ul><ul><li>LAWS </li></ul></ul><ul><ul><li>HAZARDS </li></ul></ul>
  61. 61. Tips and Advice <ul><li>“ RULES OF THUMB” </li></ul><ul><ul><li>300’ OF BOREHOLE = APPROXIMATELY 1.5 to 2 TONS DEPENDING ON SUBSURFACE FORMATION </li></ul></ul><ul><ul><li>WELL FIELD INSTALLED COST: $12.00 TO $15.00 PER LINEAR FOOT OF BOREHOLE </li></ul></ul>
  62. 62. Tips and Advice <ul><li>“ RULES OF THUMB” </li></ul>
  63. 63. DOOR PRIZE

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