Exhibit U - SCSU Chilled Water Study Report - St. Cloud State ...

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10. Education Building <strong>Chilled</strong> <strong>Water</strong> Energy Use Graph 1 above demonstrates the gradual increase in Delta T as outside air temperature rises, indicating that the two-way valves are performing well. The close tolerance of the Delta T—only 6–8°F—suggests that the return water temperature control valve is impacting operation more significantly. The flatness of the points across the monitoring range also indicates that flow and load are near constant without reset for unoccupied operation. Night and weekend shutdown does not appear to be occurring, yet the schedules indicate it is. GRAPH 2 30 Education Building—September 1, 2011 Time of Day vs. Delta T 25 CHW Delta T (°F) 20 15 10 5 0 7:12 PM 12:00 AM 4:48 AM 9:36 AM 2:24 PM 7:12 PM 12:00 AM 47
10. Education Building GRAPH 3 CHW Temperature (°F) 70 65 60 55 50 45 Education Building CHW Supply and Return Temperatures Supply Temp, °F Return Temp, °F 40 7/31/11 8/5/11 8/10/11 8/15/11 8/20/11 8/25/11 8/30/11 9/4/11 9/9/11 GRAPH 4 CHW Temperature (°F) 70 65 60 55 50 45 Education Building—September 1, 2011 CHW Supply and Return Temperatures Supply Temp, °F Return Temp, °F 40 7:12 PM 12:00 AM 4:48 AM 9:36 AM 2:24 PM 7:12 PM 12:00 AM 48
Page 1 and 2:
St. Cloud State University Chilled
Page 3 and 4:
1. Executive Summary
Page 5 and 6:
1. Executive Summary Conclusion McK
Page 7 and 8:
1. Executive Summary RIVERVIEW •
Page 9 and 10:
2. Chilled Water System
Page 11 and 12:
2. Chilled Water System Graphs 2, 3
Page 13 and 14:
2. Chilled Water System GRAPH 4 PSI
Page 15 and 16: 3. Chilled Water Plant
Page 17 and 18: 3. Chilled Water Plant Chilled Wate
Page 19 and 20: 3. Chilled Water Plant A similar pa
Page 21 and 22: 4. Distribution Loop Distribution L
Page 23 and 24: 4. Distribution Loop TABLE 4 Bldg E
Page 25 and 26: 4. Distribution Loop Design GPM Cur
Page 27 and 28: Building 51 (Business Building) Yea
Page 29 and 30: 5. 51 (Business) Building General B
Page 31 and 32: 5. 51 (Business) Building 70 GRAPH
Page 33 and 34: 6. Administrative Services
Page 35 and 36: 6. Administrative Services Building
Page 41 and 42: Atwood Memorial Center Year Built 1
Page 43 and 44: 7. Atwood Memorial Center General B
Page 45 and 46: 7. Atwood Memorial Center GRAPH 4 7
Page 47 and 48: 8. Brown Hall
Page 49 and 50: 8. Brown Hall 34
Page 51 and 52: 8. Brown Hall Chilled Water Energy
Page 53 and 54: 8. Brown Hall Recommendations • C
Page 55 and 56: Centennial Hall Year Built 1971 Ren
Page 57 and 58: 9. Centennial Hall General Building
Page 59 and 60: 9. Centennial Hall GRAPH 3 70 Cente
Page 61 and 62: 9. Centennial Hall Recommendations
Page 63 and 64: Education Building Year Built 1971
Page 65: 10. Education Building General Buil
Page 69 and 70: 11. Engineering & Comp. Center
Page 71 and 72: 11. Engineering & Computer Center 5
Page 73 and 74: 11. Engineering & Computer Center G
Page 75 and 76: 11. Engineering & Computer Center C
Page 77 and 78: Garvey Commons Year Built 1962 Reno
Page 79 and 80: 12. Garvey Commons General Building
Page 81 and 82: 12. Garvey Commons GRAPH 4 CHW Temp
Page 83 and 84: 13. Kiehle Visual Arts Center
Page 85 and 86: 13. Kiehle Visual Arts Center 60
Page 87 and 88: 13. Kiehle Visual Arts Center Chill
Page 89 and 90: 13. Kiehle Visual Arts Center 70 GR
Page 91 and 92: 14. Lawrence Hall
Page 93 and 94: 14. Lawrence Hall 66
Page 95 and 96: 14. Lawrence Hall Chilled Water Ene
Page 97 and 98: 14. Lawrence Hall Cooling System Pe
Page 99 and 100: Miller Learning Resource Center Yea
Page 101 and 102: 15. Miller Learning Resources Cente
Page 103 and 104: 15. Miller Learning Resources Cente
Page 105 and 106: Performing Arts Center Year Built 1
Page 107 and 108: 16. Performing Arts Center General
Page 109 and 110: 16. Performing Arts Center GRAPH 4
Page 111 and 112: Riverview Year Built 1911 Renovatio
Page 113 and 114: 17. Riverview General Building Desc
Page 115 and 116: 17. Riverview GRAPH 4 CHW Temperatu
Page 117 and 118:
Stewart Hall Year Built 1948 Renova
Page 119 and 120:
18. Stewart Hall General Building D
Page 121 and 122:
18. Stewart Hall GRAPH 3 70 Stewart
Page 123 and 124:
19. Student Rec Center
Page 125 and 126:
19. Student Recreation Center 88
Page 127 and 128:
19. Student Recreation Center GRAPH
Page 129 and 130:
20. Wick Science Building
Page 131 and 132:
20. Wick Science Building 92
Page 133 and 134:
20. Wick Science Building GRAPH 2 3
Page 135 and 136:
20. Wick Science Building Cooling S
Page 137 and 138:
Wick Science Building Addition Year
Page 139 and 140:
21. Wick Addition General Building
Page 141:
21. Wick Addition GRAPH 4 CHW Tempe
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