Attach 2 List of NIST Closed Loops.pdf
PDF 91 KB Posted
- Attached to
- NIST Boulder Closed Loop Chemical Treatment
- Solicitation number
- NB1940002301741
About this file
The attached document is a list of three closed loops at the National Institute of Standards and Technology campus in Boulder, Colorado. The loops include conductivity, pH, nitrite, glycol percentage, and iron levels.
The related federal contract opportunity is a pre-solicitation for chemical treatment of the NIST Boulder closed loops. The solicitation number is NB1940002301741 and is being issued by the Department of Commerce National Institute of Standards and Technology. Services required include ongoing chemical treatment of the three closed loops specified in the attached list to control conductivity, pH, nitrite, glycol percentage, and iron levels. The pre-solicitation provides advance notice of the forthcoming solicitation for these chemical treatment services.
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Other files
| File | Type | Posted |
|---|---|---|
| SOW Closed Loop Chemicals revised.doc | DOC document |
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Text version
Loop Name Conductivity pH Existing Nitrite Glycol Percentage Iron
1 B1 W6 Glycol Energy Recovery 180 5.47 0 19 3.3
B1 Spine/Front of Building 1 Heating Hot Water
655 9.9 300 23 1.26
3 B1 2058 Process Water 6531 11.4 <2500 N/A 0.07 4 B1 W3/W5 Heating Hot Water 251 9.3 100 0 0.10 5 B1 W3 Process Water 215 7.5 100 N/A 0.30 6 B1 W3 Glycol Energy Recovery 1130 10.5 600 15 0.65 7 B1 Annex F Glycol Chilled Water 2100 10.2 700 40 0 8 B1 W6 Heating Hot Water 122 8.7 50 0 0.17 9 B81 Heating Hot Water 560 9.9 150 N/A 0.03
10 B81 Heat Recovery Loop 2715 9.9 2300 56 0 11 B81 Heat Pump Loop 1062 9.9 <2500 <63 0.83 12 B81 Low Temp Chilled Water 3810 9.47 1600 35 0 13 B81 Glycol Heating Hot Water 1770 9.3 1100 42 0 14 B81 Secondary Chilled Water 582 8.5 250 N/A 0.10 15 B81 Low Temp Heating Water 584 9.0 200 N/A 0 16 B2 Glycol Boiler 12 1585 8..8 350 25 0 17 B2 Glycol Energy Recovery 2200 9.4 450 34 0.66 18 B2 Glycol Reheat 1495 9.1 250 13 0.08 19 B2 Glycol Preheat 1790 10.1 550 38 0.07 20 B3 Glycol Heating Hot Water 4010 8.9 2200 18 0.04 21 B21 Glycol Heating Hot Water 615 10.4 200 44 0.66 22 B22 Glycol Heating Hot Water 2580 9.4 500 37 0 23 B23 Glycol Heating Hot Water 1707 8.4 550 43 0.24 24 B24 Heating Hot Water 136 9.3 50 N/A 0.55 25 B25 Heat Hot Water 2329 10.0 1800 N/A 0.01 26 B42 Heating Hot Water 146 9.0 50 N/A 3.3
Loop Name Conductivity pH Silica Inhibitor Glycol Percentage Iron
27 B81 Process Chilled Water Loop as of Feb 22 249 10.35 85 N/A 0.24
NIST CLOSED LOOPS INFORMATION
Testing Results from March 2023
Testing Results from February 2023
Wing 5 New Construction (Information based on construction drawings, construction complete May 2023)
Loop Name Conductivity pH Silica Inhibitor Glycol Percentage Iron
28 Wing 5 Decoupled Chilled Water Loop Unknown Unknown 60-100 ppm N/A New piping installed in 2023
29 Wing 5 Process Chilled Water Loop Unknown Unknown 60-100 ppm N/A New piping installed in 2023
30 Wing 5 Snow Melt Loop Unknown Unknown 60-100 ppm 30 New piping installed in 2023
31 Wing 5 energy Recovery Loop Unknown Unknown 60-100 ppm 30 New piping installed in 2023
32 Wing 5 Preheat Coil Loops Unknown Unknown 60-100 ppm N/A New piping installed in 2023
Loop Name Conductivity pH Silica Inhibitor Glycol Percentage Iron
33 Building 2 Snow Melt Loop Unknown Unknown 0 No detectable percentage when tested
Unknown
Existing Building Loops that have not been fully tested
Table 1
File details come from the government source that posted it. Updated .