Rock Valley College<br />Karl J. Jacobs Center for Science and Math<br />February 8, 2011<br />Dan Comperchio, PE<br />Ada...
Agenda<br />Rock Valley College Karl J. Jacobs Center for Science and Math<br /><ul><li>Facility Overview
Chilled Beam and Geothermal Application
Systems and Airflows
System Energy Savings
Lessons Learned</li></li></ul><li>Facility Overview<br />Rock Valley Community College<br />Karl J. Jacobs Center for Scie...
100,000 Square Feet, Three Floors
Six Life Science Labs, Six Physical Science Labs, 12 Mathematics Classrooms, Faculty Offices, Student Life Spaces
Targeting LEED Gold Under LEED 2009
Saavedra Gehlhausen Architects
Demonica Kemper Architects</li></li></ul><li>Energy Saving Technologies<br /><ul><li>Daylight and Occupancy Sensors
Multiple Switching Zones
Building Integrated Photovoltaic Modules</li></ul>Energy Saving Technologies at Rock Valley Community College:<br /><ul><l...
Water Cooled Heat Pumps
Chilled Beam Cooling
Variable Air Volume Air Handling Units
Energy Recovery on Air Handling Units
Thermally Efficient Glazing
White Membrane Roof With R-27 Insulation Value
Geothermal Domestic Water Heating System
Variable Frequency Drives
High Efficiency Lighting Fixtures, Low Mercury Lamps
Transformers Bearing Energy Star Label</li></li></ul><li>Project Energy Grants<br /><ul><li> Illinois Clean Energy Communi...
 Illinois Clean Energy Community Foundation (Building Integrated PV)  -  $115,000
Illinois Clean Energy Community Foundation (LEED Gold)  -  $150,000
 Illinois  Dept of Commerce and Economic Opportunity (Geothermal) - $420,000
ARRA funding - 26% of geothermal installation cost</li></li></ul><li>Geothermal Systems: The Basics<br /><ul><li>Earth abs...
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Rock Valley College - Chilled Beams Lesson Learned

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Chilled beams lessons learned from Rock Valley College presented at the Illinois Chapter of ASHRAE February 8, 2011 by Dan Comperchio, PE and Adam McMillen, PE of KJWW Engineering Consultants.

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  • Fans: Energy recovery devices add a lot of pressure drop Latent loads required high cfm at constant volume Lab system ventilation high cfms
  • Rock Valley College - Chilled Beams Lesson Learned

    1. 1. Rock Valley College<br />Karl J. Jacobs Center for Science and Math<br />February 8, 2011<br />Dan Comperchio, PE<br />Adam McMillen, PE, LEED® AP, BD+C<br />
    2. 2. Agenda<br />Rock Valley College Karl J. Jacobs Center for Science and Math<br /><ul><li>Facility Overview
    3. 3. Chilled Beam and Geothermal Application
    4. 4. Systems and Airflows
    5. 5. System Energy Savings
    6. 6. Lessons Learned</li></li></ul><li>Facility Overview<br />Rock Valley Community College<br />Karl J. Jacobs Center for Science and Math<br /><ul><li>New Construction
    7. 7. 100,000 Square Feet, Three Floors
    8. 8. Six Life Science Labs, Six Physical Science Labs, 12 Mathematics Classrooms, Faculty Offices, Student Life Spaces
    9. 9. Targeting LEED Gold Under LEED 2009
    10. 10. Saavedra Gehlhausen Architects
    11. 11. Demonica Kemper Architects</li></li></ul><li>Energy Saving Technologies<br /><ul><li>Daylight and Occupancy Sensors
    12. 12. Multiple Switching Zones
    13. 13. Building Integrated Photovoltaic Modules</li></ul>Energy Saving Technologies at Rock Valley Community College:<br /><ul><li>Geothermal Field
    14. 14. Water Cooled Heat Pumps
    15. 15. Chilled Beam Cooling
    16. 16. Variable Air Volume Air Handling Units
    17. 17. Energy Recovery on Air Handling Units
    18. 18. Thermally Efficient Glazing
    19. 19. White Membrane Roof With R-27 Insulation Value
    20. 20. Geothermal Domestic Water Heating System
    21. 21. Variable Frequency Drives
    22. 22. High Efficiency Lighting Fixtures, Low Mercury Lamps
    23. 23. Transformers Bearing Energy Star Label</li></li></ul><li>Project Energy Grants<br /><ul><li> Illinois Clean Energy Community Foundation (Geothermal) - $90,000
    24. 24. Illinois Clean Energy Community Foundation (Building Integrated PV) - $115,000
    25. 25. Illinois Clean Energy Community Foundation (LEED Gold) - $150,000
    26. 26. Illinois Dept of Commerce and Economic Opportunity (Geothermal) - $420,000
    27. 27. ARRA funding - 26% of geothermal installation cost</li></li></ul><li>Geothermal Systems: The Basics<br /><ul><li>Earth absorbs 50% of all solar energy
    28. 28. Heat is stored in the earth
    29. 29. Remains a constant temperature below the frost line
    30. 30. Uses constant temperature to exchange energy between your building and the earth</li></li></ul><li>System Applications at Rock Valley College<br /><ul><li>164 vertical well bores
    31. 31. 370’ deep
    32. 32. 420 tons cooling capacity</li></li></ul><li>Geothermal Field Location<br />Geothermal <br />Field<br />New Facility<br />
    33. 33. Geothermal Field Installation<br />
    34. 34. Geothermal Field Installation<br />
    35. 35. Geothermal Field Installation<br />
    36. 36. Chilled Beam System<br /><ul><li>Chilled beams were used to handle sensible load
    37. 37. Dedicated Outdoor Air System (DOAS) provided ventilation air and all latent capacity
    38. 38. Saved over 45% of airflow using chilled beams and DOAS over traditional VAV</li></li></ul><li>Chilled Beam System<br /><ul><li>Utilized chilled beams in over 60% of spaces
    39. 39. Areas without chilled beams included:
    40. 40. Mechanical/Electrical Rooms
    41. 41. Select Corridors
    42. 42. Restrooms, Janitor Closets
    43. 43. Lab Spaces with high ACH requirements
    44. 44. Greenhouse</li></li></ul><li>GroundFloorLayout<br />Chilled Beam/DOAS<br />VAV<br />
    45. 45. FirstFloorLayout<br />Chilled Beam/DOAS<br />VAV<br />
    46. 46.
    47. 47.
    48. 48.
    49. 49.
    50. 50. DOAS Unit<br />
    51. 51. DOAS Psychometrics<br />
    52. 52. Humidity Control<br /><ul><li>Aggressive humidity control at DOAS
    53. 53. Dewpoint sensors in areas of concern
    54. 54. Zone control valves close when dewpoint rises above the setpoint</li></li></ul><li>ChilledWater Loop<br />
    55. 55. Energy Results<br />
    56. 56. LEED Implications<br /><ul><li>Optimize Energy: pursing 19 points
    57. 57. Enhanced Refrigerant Management: pursuing 2 points
    58. 58. Indoor Chemical and Pollutant Source Control: </li></ul> eligible with November 2010 addenda<br /><ul><li>Controllability of Systems – Thermal Comfort:</li></ul> pursuing 1 point<br />
    59. 59. Lessons Learned<br /><ul><li>Many buildings require a hybrid system approach to best meet the building needs
    60. 60. Primary airflow requirements can vary widely based on latent load
    61. 61. Dry supply air can significantly reduce air handler unit size and potentially reduce first cost
    62. 62. Consider demand control ventilation for additional fan energy savings</li></li></ul><li>Questions?<br />Thank You<br />KJWW Engineering<br />1100 East Warrenville Road<br />Naperville, Illinois 60563<br />630-527-2320<br />Dan Comperchio, PE (comperchiodp@kjww.com)<br />Adam McMillen, PE, LEED® AP, BD+C (mcmillenam@kjww.com)<br />

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