Overview

Gen Info
Wessington 1 _Alvin_
Wessington 2 _Theodore_
'file:///home/chuss/helium/3K-gallon_transport.xls'#Sheet1

Sheet 1: Gen Info
Date Time Inside Temp Outside Temp Barometric Pressure When the HDI is below 400 mm use y = 0.002x^2 + 1.305x + 6.622

27.01.01 630 20 C -37 C 682 mB


28.01.01 930 20 C -31 C 685 mB


29.01.01 630 20 C -26 689


30.01.01 630 20 C -24 690


31.01.01 630 20 C -25 691


01.02.01 630 20 C -30 692


02.02.01 630 20 C -33 693

6.62
03.02.01 630 20 C -32 694


04.02.01 630 25 C -31 695


05.02.01 630 25 C -24 696 Evaporating ethanol from displacer in LN2 cold head.

06.02.01 630 20 C -33 690







For the month of Feb we lost 5% of our LHe due to boil-off from the Chipmunks only.






Assuming 3,000 gallons in the transport and 1,000 gallons in each dewar.

26.02.01



Separated the three vent lines

Sheet 2: Wessington 1 _Alvin_
Date Time Day of Year W (lbs) Vol Loss/Day HDI HDI Loss/Day Flow Loss/Day Flow Loss/Day Press Notes
18.01.01 1500 18.63 6320 L wt mm L HDI liters/min flow based shack shack flow psig all volumes shown in liters
18.01.01 1715 18.71 6350

N/A



cf/h


18.01.01 1825 18.76 6608

N/A







18.01.01 1915 18.8 6808

N/A







18.01.01 1945 18.81 N/A

N/A







18.01.01 2100 18.88 N/A

N/A






18.01.01 2155 18.9 N/A

N/A







21.01.01 1300 21.54 6653 1213.9 N/A 509 1174.83
19 36



21.01.01 1800 21.75 6652 1210.25 N/A 510 1178.32
19 36

0
22.01.01 630 22.26 6648 1195.67 N/A 503 1153.85
18 34

0
22.01.01 1300 22.54 6646 1188.38 -25 507 1167.83 -6.99 5 10

3 adjusted flow meter to read 5 L/M
22.01.01 2030 22.85 6647 1192.03



6 11

6
23.01.01 630 23.26 6645 1184.74 -11 517 1202.8 -48.95 7 -13 45 -14 7 begin reading pressure from bottom point
23.01.01 1330 23.55 6641 1170.15 -18


6 -11 44 -13 7 fill 100 liter dewar at 1700
24.01.01 630 24.26 6622 1100.89 -83 487 1097.9 -104.9 7.5 -14 52 -16 7 fill line is 15 lbs; adjusted L/D is 137 liters
24.01.01 1330 24.55 6618 1086.31 -83


10 -19

7 adjust flow meter to 10 L/min
24.01.01 2000 24.83 6612 1064.44
479 1069.93
10 -19

7
25.01.01 630 25.26 6616 1079.02 -22 471 1041.96 -55.94 12 -23

7
25.01.01 1330 25.55 6606 1042.57



12 -23

<7 disconnected some lines from dewar
25.01.01
25










adjusted weight to 6609 at 0800
25.01.01 2000 25.83 6605 1038.92 -25


12.5 -24

6.5
26.01.01 630 26.26 6602 1027.99 -51 459 1000 -41.96 12 -23

6.2
26.01.01 1030 26.43 6604 1035.28



12 -23

6.2 reattached lines to dewar (add weight)
26.01.01 1330 26.55 6603 1031.63



19 -36

6 adjust flow meter to 20 L/M
26.01.01 2000 26.83 6657 1228.48 189


25 -48

5 walking boards on dewars add wt
27.01.01 630 27.26 6660 1239.42 211 429 895.1 -104.9 22 -42

3.5
27.01.01
27 Vent down to 0 psig and and 0 flow and pull lance out of dewar










27.01.01 2000 27.83 6633 1140.99 -87


7 -13

2
28.01.01 930 28.39 6641 1170.15
422 870.63
7 -13

3.5
28.01.01 2000 28.83 6639 1162.86 22


6 -11 44 -13 5.5
29.01.01 630 29.26 6636 1151.93 -18 419 860.14 -10.49 6 -11 41 -12 7 shack flow dropped from 48 - 41 cfm/hr
29.01.01 1330 29.55 6632 1137.35



6 -11 50 -15 7
29.01.01 2000 29.83 6630 1130.06



5 -10 53 -16 7
30.01.01 630 30.26 6630 1130.06 -22 422 870.63 10 5 -10 50 -15 7
30.01.01 1330 30.55





5 -10 50 -15 7
30.01.01 2000 30.83 6624 1108.18 -22 420 863.64
5 -10 53 -16 7 open vent for fill
31.01.01 630 31.26 6620 1093.6 -36 411 832.17 -38 17 -32 63 -19 6.5
31.01.01 930 31.39


371 692.31 -172 L during venting



0 vent down to 0 psig for fill
begin filling 250 L and two 100 L dewars




371 692.31






end filling 250L and two 100 L dewars




217 153.85






It took 538 L to fill 450 L













31.01.01 2000 31.83 6482 590.55
211 132.87
0


0
begin filling at 12:30 a.m.



begin filling at 6489 lbs



begin filling at 211 mm



end filling at 6:30 a.m.



end filling at 7508 lbs



end filling at 1313 mm



toal 6 hours



total 1019 lbs



total 1102 mm








total 3850 liters



total 3900 liters



01.02.01 1600 32.67


1300 3940.56






01.02.01 1730 32.72 7422 4017.16
1300 3940.56
5.5


0
02.02.01 630 33.26 7420 4009.87
1299 3937.06
6 -11 10 -9 0
Throttle flow meter to maintain ambient pressure


-23038.55
1299







02.02.01 2000 33.83 7420 4009.87 -7 1298 3933.57 -7 7 -13 11 -10 2
03.02.01 630 34.26 7416 3995.29 -15 1297 3930.07 -7 7 -13 13 -12 0 construction adding and subtracting wt
04.02.01 1100 35.46 7404 3951.55
1272 3842.66 0 6 -11 12 -11 0 no loss in 21 hours after the new top works
04.02.01 2000 35.83 7401 3940.61 -22 1272 3842.66 0 6 -11 12 -11 0
05.02.01 630 36.26 7432 4053.62
1271 3839.16 -3 6 -11 11 -10 0 wt added to dewar in construction
05.02.01 1430 36.6 7432 4053.62 102 1271 3839.16 -3 4.5 -9 7 -6 0
06.02.01 630 37.26 7414 3988 -65 1271 3839.16 0 4 -8 7 -6 2 remove construction wt.
07.02.01 930 38.39
-23038.55
1269 3832.17 -7 4 -8 8 -7
Go to Mac Town (Charlie took data)
08.02.01 830 39.35
-23038.55
1268 3828.67 -3 4 -8 8 -7
-3 L/Day after new top works
09.02.01 830 40.35
-23038.55
1262 3807.69 -21 4 -8 8 -7

10.02.01 830 41.35
-23038.55
1249 3762.24 -45 4 -8 8 -7

10.02.01 1330 41.55 7379 3860.42



4 -8 8 -7 2.5 Back from Mac Town
11.02.01 930 42.39 7369 3823.96
1240 3730.77 -31 4 -8



11.02.01 1930 42.8 7364 3805.73 -54 1236 3716.78
4 -8

2.5 -32 L/Day for last 4 days
12.02.01 630 43.26 7372 3834.9 11 1232 3702.8 -28 4 -8

3 -15 L/Day after new top works
12.02.01 1830 43.76 7365 3809.38
1232 3702.8
8 -15

4 found and corrected leak on main vent
13.02.01 630 44.26 7363 3802.09 -34 1231 3699.3 -3 8.5 -16

5
13.02.01 1830 44.76 7335 3700.02
1231 3699.3
9 -17

5 remove wt from top
14.02.01 630 45.26 7337 3707.31
1231 3699.3 0 9 -17

5.5 wt figures are meaningless until the cryobarn is cleaned
14.02.01 1830 45.76 7331 3685.44
1231 3699.3
9 -17

5.5 all excess wt removed from dewar
15.02.01 630 46.26 7337 3707.31 0 1231 3699.3 0 9 -17

5.5
15.02.01 1830 46.76 7325 3663.57
1231 3699.3
9 -17

6
16.02.01 630 47.26 7323 3656.28
1230 3695.8 -3 9.5 -18

6
16.02.01 1830 47.76 7320 3645.34
1230 3695.8
9.5 -18

6
17.02.01 730 48.3 7320 3645.34 -11 1229 3692.31 -3 9.5 -18

6
19.02.01 730 50.3 7305 3590.66 -28 1224 3674.83 -9 10 -19

6 average -10 L/D since 2/10 by HDI
19.02.01 1800 50.75 7301 3576.08
1221 3664.34
10 -19

6 average -15 L/D since 2/1 by HDI
20.02.01 730 51.3 7297 3561.5 -30 1216 3646.85 -17 10 -19

6 average -12 L/D since new top by HDI
20.02.01 1830 51.76 7293 3546.92
1212 3632.87
10 -19

6
21.02.01 730 52.3 7291 3539.63 -23 1205 3608.39 -38 10 -19

6 average -15 L/D over last 6 days by HDI
21.02.01 1800 52.75 7285 3517.75
1199 3587.41
10 -19

6
22.02.01 730 53.3 7280 3499.53 -42 1195 3573.43 -35 10 -19

6
22.02.01 1800 53.75 7278 3492.24
1191 3559.44
10 -19

6
23.02.01 730 54.3 7272 3470.36 -30 1186 3541.96 -31 10 -19

6 average -35 L/D over last 3 days by HDI
23.02.01 1800 54.75 7270 3463.07
1182 3527.97
10 -19

6
24.02.01 730 55.3 7268 3455.78 -15 1178 3513.99 -28 10 -19

6 as of 2/1 Alvin has lost 427L at an average
24.02.01 1800 55.75 7263 3437.56
1175 3503.5
10 -19

6 rate of 19L/D
25.02.01 730 56.3 7259 3422.97 -34 1170 3486.01 -28 10 -19

6
25.02.01 1800 56.75 7255 3408.39
1165 3468.53
10 -19

6
26.02.01 730 57.3 7253 3401.1 -23 1161 3454.55 -31 10 -19 23 -21 6 flow meter on dewar and mass flow in shack correspond
28.02.01 730 59.3 7238 3346.42 -30 1125 3328.67 -84 24 -46

5
28.02.01 1800 59.75 7227 3306.32
1117 3300.7
25 -48

5
01.03.01 730 60.3 7188 3164.16 -189 1023 2972.03 -357 0 0

0
01.03.01 1800 60.75 7176 3120.41
1021 2965.03
10 -19

2
02.03.01 730 61.3 7182 3142.28 -23 1021 2965.03 -7 10 -19

2
04.03.01 730 63.3 7169 3094.89 -19 1021 2965.03 0 11 -21

2.5
05.03.01 730 64.3 7159 3058.44 -38 1021 2965.03 0 11 -21

2.5
05.03.01 1800 64.75 7156 3047.5
1020 2961.54
11 -21

2.5
06.03.01 730 65.3 7152 3032.92 -26 1016 2947.55 -17 12 -23

2.5
06.03.01 1800 65.75 7152 3032.92
1014 2940.56
12 -23

2.5 evaporation rate back up
07.03.01 730 66.3 7149 3021.99 -11 1008 2919.58 -28 12 -23

2.5 average evaporation rate 9L/D for March to date
07.03.01 1800 66.75 7142 2996.47
1003 2902.1
12 -23

2.5
08.03.01 730 67.3 7140 2989.18 -34 999 2888.11 -31 12 -23

2.5
08.03.01 1800 67.75 7133 2963.66
999 2888.11
9 -16

3
09.03.01 730 68.3 7129 2949.08 -40 999 2888.11 0 10 -17

3
09.03.01 1800 68.75 7128 2945.43
999 2888.11
9.5 -17

3.5
10.03.01 730 69.3 7128 2945.43 -4 999 2888.11 0 9 -16

3.5
10.03.01 1800 69.75 7127 2941.79
999 2888.11
9 -16

4
11.03.01 730 70.3 7124 2930.85 -15 996 2877.62 -10 9.5 -17

4.5
12.03.01 730 71.3 7120 2916.27 -15 993 2867.13 -10 10 -17

5
12.03.01 1800 71.75 7113 2890.75
992 2863.64
10.5 -18

5
13.03.01 730 72.3 7113 2890.75 -26 992 2863.64 -3 9.5 -17

5
13.03.01 1800 72.75 7105 2861.59
992 2863.64
9 -16

5.5
14.03.01 730 73.3 7105 2861.59 -29 991 2860.14 -3 9.5 -17

6 begin venting to replace top works tomorrow
19.03.01 730 78.3 7089 2803.27 -11 876 2458.04 -24 0 0

0 add modified top works and button down dewar
19.03.01 1800 78.75 7033 2599.13
873 2447.55
4 -7

0
20.03.01 730 79.3 7033 2599.13 -204 873 2447.55 -10 6 -10

2
20.03.01 1800 79.75 7033 2599.13
873 2447.55
6 -10

2.5
21.03.01 730 80.3 7025 2569.96 -29 873 2447.55 0 6 -10

2.5 Zero evaporation rate begins a little later than expected
21.03.01 1800 80.75 7025 2569.96
873 2447.55
5.5 -10

2.5
22.03.01 730 81.3 7019 2548.09 -22 873 2447.55 0 6 -10

2.5
22.03.01 1800 81.75 7019 2548.09
873 2447.55
5.5 -10

2.5
23.03.01 730 82.3 7019 2548.09 0 873 2447.55 0 5.5 -10

2.5
23.03.01 1800 82.75 7019 2548.09
873 2447.55
5.5 -10

2.5
24.03.01 730 83.3 7019 2548.09 0 873 2447.55 0 6.5 -11

2.5
24.03.01 1800 83.75 7016 2537.16
872 2444.06
6.5 -11

2.5
25.03.01 730 84.3 7015 2533.51 -15 869 2433.57 -14 6.5 -11

2.5 No more zero loss rate
26.03.01 730 85.3 7012 2522.58 -11 864 2416.08 -17 6.5 -11

2.5
26.03.01 1800 85.75 7009 2511.64
861 2405.59
6.5 -11

2.5
27.03.01 730 86.3 7005 2497.06 -26 858 2395.1 -21 6.5 -11

2.5
27.03.01 1800 86.75 7004 2493.41
853 2377.62
7 -12

3
28.03.01 730 87.3 7003 2489.77 -7 849 2363.64 -31 7 -12

3 What's up with -31?
28.03.01 1800 87.75 7003 2489.77
847 2356.64
7 -12

3 adjust to 6psig
29.03.01 730 88.3 7002 2486.12 -4 845 2349.65 -14 6.5 -11

3 a little better
29.03.01 1800 88.75 7001 2482.48
845 2349.65
6 -10

3
30.03.01 730 89.3 6998 2471.54 -15 845 2349.65 0 6 -10

3.5
30.03.01 1800 89.75 6969 2365.83
845 2349.65
6 -10

3.5
31.03.01 730 90.3 6978 2398.63 -73 844 2346.15 -3 6 -10

3.5
31.03.01 1800 90.75 6976 2391.34
843 2342.66
6 -10

3.5
01.04.01 730 91.3 6975 2387.7 -11 842 2339.16 -7 6 -10

3.5
02.04.01 730 92.3 6975 2387.7 0 840 2332.17 -7 6 -10

4.5
02.04.01 1800 92.75 6975 2387.7
839 2328.67
6 -10

4.5
03.04.01 730 93.3 6970 2369.47 -18 839 2328.67 -3 6 -10

4.5
03.04.01 1800 93.75 6965 2351.24
837 2321.68
6 -10

5
04.04.01 730 94.3 6965 2351.24 -18 835 2314.69 -14 6 -10

5
04.04.01 1800 94.75 6962 2340.31
833 2307.69
6 -10

5
05.04.01 730 95.3 6956 2318.44 -33 830 2297.2 -17 6 -10

5
05.04.01 1800 95.75 6956 2318.44
826 2283.22
6 -10

5 Weight added to top
06.04.01 730 96.3 6956 2318.44 0 824 2276.22 -21 6 -10

5
06.04.01 1800 96.75 6954 2311.15
822 2269.23
6 -10

5
07.04.01 730 97.3 6951 2300.21 -18 820 2262.24 -14 6 -10

5
08.04.01 730 98.3 6945 2278.34 -22 815 2244.76 -17 6 -10

5
09.04.01 730 99.3 6939 2256.47 -22 810 2227.27 -17 6 -10

5.5
09.04.01 1800 99.75 6940 2260.11
807 2216.78
9 -16

5.5
10.04.01 730 100.3 6938 2252.82 -4 802 2199.3 -28 9 -16

5.5 ? ? ?
10.04.01 1800 100.75 6932 2230.95
800 2192.31
9 -16

5.5
11.04.01 730 101.3 6930 2223.66 7170 798 2185.31 -14 9 -16

5.5
11.04.01 1800 101.75 6920 2187.2
795 2174.83
9 -16

5.5 big weight drop in 10 hours
12.04.01 730 102.3 6931 2227.3 7183 792 2164.34 -21 9 -16

6 weight data is unreliable
12.04.01 1800 102.75 6916 2172.62
791 2160.84
9 -16

6
13.04.01 730 103.3 6919 2183.56 7030 787 2146.85 -17 9 -16

6
13.04.01 1800 103.75 6930 2223.66
785 2139.86
9 -16

6
14.04.01 730 104.3 6920 2187.2 7043 780 2122.38 -24 9 -16

6 high daily loss rates
14.04.01 1800 104.75 6920 2187.2
780 2122.38
9 -16

6
15.04.01 730 105.3 6919 2183.56 7030 776 2108.39 -14 9 -16

6
16.04.01 730 106.3 6917 2176.27 -7 772 2094.41 -14 9 -16

6
16.04.01 1800 106.75 6930 2223.66
770 2087.41
9 -16

6
17.04.01 730 107.3 6927 2212.72 36 768 2080.42 -14 9 -16

6
17.04.01 1800 107.75 6921 2190.85
766 2073.43
9 -16

6
18.04.01 730 108.3 6916 2172.62 -40 762 2059.44 -21 9 -16

6
18.04.01 1800 108.75 6920 2187.2
761 2055.94
9 -16

6
19.04.01 730 109.3 6916 2172.62 0 757 2041.96 -17 9 -16

6
19.04.01 1800 109.75 6913 2161.69
753 2027.97
9 -16

6
20.04.01 730 110.3 6916 2172.62 0 748 2010.49 -31 9 -16

6
20.04.01 1800 110.75 6910 2150.75
747 2006.99
9 -16

6
21.04.01 730 111.3 6912 2158.04 -15 744 1996.5 -14 9 -16

6
21.04.01 1800 111.75 6909 2147.11
742 1989.51
9 -16

6
22.04.01 730 112.3 6906 2136.17 -22 740 1982.52 -14 9 -16

6
23.04.01 730 113.3 6900 2114.3 -22 736 1968.53 -14 9 -16

6
23.04.01 1800 113.75 6902 2121.59
734 1961.54
6 -10

6 reset flow to 6L/min
24.04.01 730 114.3 6902 2121.59 7 734 1961.54 -7 7 -12

6.5
24.04.01 1800 114.75 6833 1870.06
670 1737.76
6.5 -11

6.5
25.04.01 730 115.3 6826 1844.54 -277 670 1737.76 -224 6 -10

7 withdrawal
25.04.01 1800 115.75 6829 1855.48
670 1737.76
6 -10

7
26.04.01 730 116.3 6829 1855.48 11 667 1727.27 -10 6 -10

7
26.04.01 1800 116.75 6824 1837.25
664 1716.78
6 -10

7
27.04.01 730 117.3 6819 1819.02 -36 660 1702.8 -24 6 -10

7
27.04.01 1800 117.75 6811 1789.86
653 1678.32
6 -10

7
28.04.01 730 118.3 6810 1786.22 -33 649 1664.34 -38 6 -10

7
28.04.01 1800 118.75 6811 1789.86
646 1653.85
6 -10

7
29.04.01 730 119.3 6812 1793.51 7 643 1643.36 -21 6 -10

7
30.04.01 730 120.3 6818 1815.38 22 638 1625.87 -17 6 -10

7
30.04.01 1800 120.75 6811 1789.86
635 1615.38
11 -19

7
01.05.01 730 121.3 6804 1764.34 -51 628 1590.91 -35 9 -16

6.5
01.05.01 1800 121.75 6802 1757.05
623 1573.43
13 -23

6
02.05.01 730 122.3 6794 1727.89 -36 615 1545.45 -45 11 -19

5.5 taking a dump (technical cryo term)
02.05.01 1800 122.75 6792 1720.6
612 1534.97
11 -19

5.5
03.05.01 730 123.3 6794 1727.89 0 600 1493.01 -52 10 -17

5
03.05.01 1800 123.75 6665 1257.64
477 1062.94
7 -12

3.5
04.05.01 730 124.3 6664 1254 -474 477 1062.94 -430 9 -16

4 withdrawal
04.05.01 1800 124.75 6664 1254
475 1055.94
9 -16

4
05.05.01 730 125.3 6664 1254 0 473 1048.95 -14 9 -16

4
06.05.01 730 126.3 6663 1250.35 -4 469 1034.97 -14 9 -16

4
07.05.01 730 127.3 6663 1250.35 0 465 1020.98 -14 9.5 -17

4.5
07.05.01 1800 127.75 6661 1243.06
464 1017.48
9.5 -17

4.5
08.05.01 730 128.3 6660 1239.42 -11 463 1013.99 -7 9.5 -17

4.5
08.05.01 1800 128.75 6650 1202.96
461 1006.99
9.5 -17

4.5 remove wt from top of dewar
09.05.01 730 129.3 6650 1202.96 -36 455 986.01 -28 9.5 -17

4.5
09.05.01 1800 129.75 6649 1199.32
453 979.02
9 -16

4.5
10.05.01 730 130.3 6643 1177.44 -26 449 965.03 -21 9 -16

4
10.05.01 1800 130.75 6640 1166.51
448 961.54
9.5 -17

4
11.05.01 730 131.3 6642 1173.8 -4 444 947.55 -17 9 -16

4
11.05.01 1800 131.75 6641 1170.15
443 944.06
9 -16

4
12.05.01 730 132.3 6638 1159.22 -15 441 937.06 -10 9.5 -17

4
12.05.01 1800 132.75 6639 1162.86
439 930.07
9.5 -17

4.5
13.05.01 730 133.3 6634 1144.64 -15 436 919.58 -17 9.5 -17

4
14.05.01 730 134.3 6630 1130.06 -15 432 905.59 -14 10 -17

4
14.05.01 1800 134.75 6626 1115.47
429 895.1
9.5 -17

4
15.05.01 730 135.3 6623 1104.54 -26 399 845.72 -60 0 0

0 vent down to install longer lance
15.05.01 1800 135.75 6577 936.85
355 721.95
7.5 -13

3 fill 2 100L dewars
16.05.01 730 136.3 6571 914.98 -190 355 721.95 -124 10 -17

4
16.05.01 1800 136.75 6567 900.4
355 721.95
10 -17

4
17.05.01 730 137.3 6565 893.11 -22 355 721.95 0 10.5 -18

4
17.05.01 1800 137.75 6563 885.82
352 713.79
10.5 -18

4
18.05.01 730 138.3 6560 874.88 -18 347 700.28 -22 10.5 -18

4
18.05.01 1800 138.75 6560 874.88
346 697.58
10.5 -18

4
19.05.01 730 139.3 6556 860.3 -15 342 686.86 -13 10 -17

4
19.05.01 1800 139.75 6554 853.01
342 686.86
10.5 -18

4
20.05.01 730 140.3 6552 845.72 -15 337 673.55 -13 10.5 -18

4
21.05.01 730 141.3 6550 838.43 -7 332 660.33 -13 10.5 -18

4
21.05.01 1800 141.75 6543 812.91
330 655.07
10.5 -18

4
22.05.01 730 142.3 6541 805.62 -33 327 647.22 -13 11 -19

4
22.05.01 1800 142.75 6537 791.04
324 639.39
11 -19

4
23.05.01 730 143.3 6534 780.1 -26 322 634.2 -13 11 -19

4
23.05.01 1800 143.75 6534 780.1
320 629.02
11 -19

4
24.05.01 730 144.3 6533 776.46 -4 315 616.15 -18 11 -19

4
24.05.01 1800 144.75 6532 772.81
314 613.58
11 -19

4
25.05.01 730 145.3 6531 769.17 -7 312 608.47 -8 11.5 -20

4
25.05.01 1800 145.75 6527 754.59
309 600.83
10.5 -18

4
26.05.01 730 146.3 6525 747.29 -22 302 583.14 -25 10.5 -18

4
26.05.01 1800 146.75 6521 732.71
300 578.12
10.5 -18

4
27.05.01 730 147.3 6518 721.78 -26 297 570.63 -13 10.5 -18

4
28.05.01 730 148.3 6511 696.26 -26 292 558.21 -12 10.5 -18

4
28.05.01 1800 148.75 6434 415.57
197 341.33
0 0

3 transfer to 250L dewar
29.05.01 730 149.3 6428 393.7 -303 197 341.33 -217 0 0

7
29.05.01 1800 149.75 6419 360.89
194 335.06
22 -38

6.5
30.05.01 730 150.3 6414 342.66 -51 187 320.6 -21 12 -21

5 vent down to remove lance for servicing
30.05.01 1800 150.75 6411 331.73
174 294.24
10 -17

4
31.05.01 730 151.3 6407 317.14 -26 158 262.74 -58 12 -21

4
31.05.01 1800 151.75 6402 298.92
143 234.14
0 0

0

Sheet 3: Wessington 2 _Theodore_
Date Time Day of Year W2 lbs Vol Loss/Day HDI HDI Loss/Day Flow Loss/Day Flow Loss/Day Press Notes
18.01.01 1500 18.63 6325 L wt mm L HDI liters/min flow shack shack flow psig
18.01.01 1715 18.71 6340

N/A







18.01.01 1825 18.76 6340

N/A







18.01.01 1915 18.8 6340

N/A







18.01.01 1945 18.81 6325

N/A







18.01.01 2100 18.88 6345

N/A







18.01.01 2155 18.9 6535

N/A







21.01.01 1000 21.42 6507
14


22 -42



21.01.01 1300 21.54 6506 688 N/A 308 472.03
21 -40



21.01.01 1800 21.75 6505 684 N/A 306 465.03
20 -38

0
22.01.01 630 22.26 6500 665 N/A 299 440.56
18 -34

0
22.01.01 1300 22.54 6503 676 -11 299 440.56 -31 6 -11

3 adjusted flow meter to read 5 L/M
22.01.01 2030 22.85 6497 654



6 -11

6 begin reading pressure from bottom pt
23.01.01 630 23.26 6493 638 -25 297 433.57 -7 6 -11 45 -14 7
23.01.01 1330 23.55 6492 635 -40


6 -11 44 -13 7
24.01.01 630 24.26 6486 612 -25 292 416.08 -17 7.5 -14 52 -16 7
24.01.01 1330 24.55 6486 612 -22


10 -19

7 adjust flow meter to 10 L/min
24.01.01 2000 24.83 6490 627 -25


10 -19

7
25.01.01 630 25.26 6480 589 -22 281 377.62 -38 12 -23

7
25.01.01 1330 25.55 6468 543 -65


12.5 -24

<7
25.01.01 2000 25.83 6467 540 -83


12 -23

6.8
26.01.01 630 26.26 6463 524 -62 270 339.16 -38 12 -23

6.8
26.01.01 1030 26.43 6478 581



12 -23

6.5 reattached lines to dewar (add weight)
26.01.01 1330 26.55 6478 581



19 -36

6.2 adjust flow meter to 20 L/M
26.01.01 2000 26.83 6519 737 189


14 -27

0 walking boards on dewars add wt
27.01.01 630 27.26 6515 722 189 244 248.25 -91 13 -25

0
27.01.01 930 27.39 Vent down to 0 psig and and 0 flow and pull lance out of dewar










27.01.01 2000 27.83 6500 665 -69


8 -15

3
28.01.01 930 28.39 6496 650
239 230.77
8 -15

6
28.01.01 2000 28.83 6495 646 -18


5 -10 44 -13 7
29.01.01 630 29.26 6495 646 -4 237 223.78 -7 6 -11 41 -12 7 shack flow dropped from 48 - 41 cfm/hr
29.01.01 1330 29.55 6523 752



6 -11 50 -15 7
29.01.01 2000 29.83 6521 745



5 -10 53 -16 7
30.01.01 630 30.26 6519 737 87 227 188.81 -35 5 -10 50 -15 7
30.01.01 1330 30.55





5 -10 50 -15 7
30.01.01 2000 30.83 6510 703 -40 221 167.83
5 -10 53 -16 7
31.01.01 630 31.26 6502 673 -62 216 150.35 -38 5 -10 63 -19 7
31.01.01 2000 31.83 6524 756
197 83.92
25 -48

3
fill to approx 1000 lbs



fill to 1380 mm








fill to approx 3780 liters



fill to 4220 liters








01.02.01 1730 32.72 7447 4264
1281 3874.13
1


0
02.02.01 630 33.26 7476 4374
1277 3860.14
1


0
02.02.01 2000 33.83 7470 4351
1270 3835.66
1


0
03.02.01 630 34.26 7462 4321
1266 3821.68 -38 1


0 construction adding and subtracting wt
04.02.01 1100 35.46 7454 4290
1248 3758.74
10 -19

0 no loss in 16 hours after new top works
04.02.01 2000 35.83 7453 4286
1248 3758.74
8 -15

3 throttle flow meter to vent down
05.02.01 630 36.26 7444 4252
1248 3758.74
9 -17

0
05.02.01 1430 36.6 7432 4207
1223 3671.33 -87 7 -13

0 put on superinsulated top works
06.02.01 630 37.26 7429 4195 -54 1222 3667.83 -91 10 -19

0
10.02.01 1330 41.55 7398 4077



4 -8

2 Back from Mac Town
11.02.01 1930 42.8 7393 4058 -18 1205 3608.39 -3 10 -19

4.5
12.02.01 630 43.26 7390 4047 -19 1205 3608.39 0 11 -21

5 -10 L/Day since new top works
12.02.01 1830 43.76 7388 4039
1205 3608.39
11 -21

5
13.02.01 630 44.26 7384 4024 -23 1205 3608.39 0 11.5 -22

5 -7 L/D for 4 days
13.02.01 1830 44.76 7390 4047
1205 3608.39
11 -21

5.5 add weight to top
14.02.01 630 45.26 7387 4036
1205 3608.39 0 11.5 -22

5.5 wt figures are meaningless until the cryobarn is cleaned
14.02.01 1830 45.76 7375 3990
1205 3608.39
11 -21

6 all excess wt removed from dewar
15.02.01 630 46.26 7372 3979
1205 3608.39 0 11 -21

6
15.02.01 1830 46.76 7369 3967
1205 3608.39
11 -21

6
16.02.01 630 47.26 7365 3952
1205 3608.39 0 11 -21

6
16.02.01 1830 47.76 7362 3941
1205 3608.39
10.5 -20

6
17.02.01 730 48.3 7362 3941 -11 1199 3587.41 -21 11.5 -22

6 adjustment?
19.02.01 730 50.3 7345 3876 -32 1179 3517.48 -35 11.5 -22

6 average -10.5 L/D since 2/10 by HDI
19.02.01 1800 50.75 7341 3861
1175 3503.5
10 -19

6 average -20 L/D since 2/1 by HDI
20.02.01 730 51.3 7337 3846 -30 1171 3489.51 -28 10 -19

6 average -16 L/D since new top by HDI
20.02.01 1830 51.76 7334 3834
1166 3472.03
10 -19

6
21.02.01 730 52.3 7330 3819 -26 1157 3440.56 -49 10 -19

6
21.02.01 1800 52.75 7329 3815
1152 3423.08
10 -19

6
22.02.01 730 53.3 7322 3789 -30 1149 3412.59 -28 10 -19

6
22.02.01 1800 53.75 7320 3781
1145 3398.6
10 -19

6
23.02.01 730 54.3 7315 3762 -26 1140 3381.12 -31 10 -19

6 average -33 L/D over last 7 days by HDI
23.02.01 1800 54.75 7312 3751
1137 3370.63
10 -19

6
24.02.01 730 55.3 7308 3735 -26 1132 3353.15 -28 10 -19

6 as of 2/1 Theodore has lost 521L at an average rate of 23L/D
24.02.01 1200 55.5 7140 3097
913 2587.41
15 -29

2.5 fill two 100L dewars, one 250L dewar, and one 500L dewar
24.02.01 1800 55.75 7138 3089
908 2569.93
15 -29

2.5
25.02.01 730 56.3 7133 3070
900 2541.96
15 -29

2.5
25.02.01 1800 56.75 7129 3055
895 2524.48
15 -29

2.5
26.02.01 730 57.3 7126 3044 -26 890 2506.99 -35 15 -29

2.5
26.02.01 1800 57.75 7115 3002
888 2500
13 -25

2.5
27.02.01 730 58.3 7106 2968 -76 887 2496.5 -10 13 -25

2.5 first sign of promising news
27.02.01 1800 58.75 7104 2960
886 2493.01
13 -25

2.5
28.02.01 730 59.3 7099 2941
884 2486.01
13.5 -26

2.5
28.02.01 1800 59.75 7092 2915
883 2482.52
13.5 -26

3
01.03.01 730 60.3 7092 2915 -26 879 2468.53 -17 14 -27

3
01.03.01 1800 60.75 7088 2899
876 2458.04
14 -27

3
02.03.01 730 61.3 7084 2884 -30 872 2444.06 -24 14 -27

3 creeping back up
04.03.01 730 63.3 7069 2827 -19 854 2381.12 -21 14 -27

2.5
05.03.01 730 64.3 7064 2808 -19 847 2356.64 -24 14 -27

2.5
05.03.01 1800 64.75 7067 2820
845 2349.65
14 -27

3
06.03.01 730 65.3 7062 2801 -8 841 2335.66 -21 14 -27

2.5
06.03.01 1800 65.75 7033 2690
795 2174.83
0 0

0 161L lost in vent down process
07.03.01 730 66.3 7033 2690 -110 795 2174.83 -161 0 0

6.5 average evaporation rate 27L/D for March to date
07.03.01 1800 66.75 7027 2668
795 2174.83
10 -19

4.5
08.03.01 730 67.3 7026 2664 -26 795 2174.83 0 8 -15

3.5
08.03.01 1800 67.75 7026 2555
795 2174.83
7.5 -13

3
09.03.01 730 68.3 7022 2541 -15 795 2174.83 0 7 -12

3
09.03.01 1800 68.75 7020 2534
795 2174.83
7.5 -13

3
10.03.01 730 69.3 7017 2523 -18 795 2174.83 0 8 -14

3
10.03.01 1800 69.75 7016 2519
795 2174.83
8 -14

3
11.03.01 730 70.3 7011 2501 -22 795 2174.83 0 8.5 -15

3
12.03.01 730 71.3 7006 2482 -18 795 2174.83 0 9 -16

3.5
12.03.01 1800 71.75 7004 2475
795 2174.83
9 -16

3.5
13.03.01 730 72.3 7001 2464 -18 794 2171.33 -3 9 -16

3.5
13.03.01 1800 72.75 6999 2457
791 2160.84
9 -16

4 uh oh, has the drop begun?
14.03.01 730 73.3 6995 2442 -22 788 2150.35 -21 9 -16

3.5 begin venting to insert lance for tomorrow's fill
14.03.01 1800 73.75 6995 2442
785 2139.86
T


3.5 T--throttled
15.03.01 730 74.3 6986 2410 -33 755 2034.97 -115 T


3 venting
15.03.01 1800 74.75 6981 2391
734 1961.54
T


2
16.03.01 730 75.3 6978 2380 -29 734 1961.54 -73 T


0
16.03.01 1800 75.75 6985 2406
724 1926.57
2 -3

0 insert lance, button up, fill tomorrow (add weight to top)
17.03.01 730 76.3 6985 2406 25 726 1933.57 -28 0 0

2 Happy St. Patty's Day
17.03.01 1030 76.43 6985 2406
726 1933.57
0 0

2 begin filling two 100L and one 250L dewars
17.03.01 1800 76.75 6876 2009
593 1468.53
0 0

0
18.03.01 730 77.3 6865 1968 -435 593 1468.53 -465 0 0

2
19.03.01 730 78.3 6854 1928 -40 593 1468.53 0 8 -14

3
19.03.01 1800 78.75 6848 1907
593 1468.53
8 -14

3 a reduction in pressure is holding.
20.03.01 730 79.3 6842 1885 -44 593 1468.53 0 9 -16

3.5
20.03.01 1800 79.75 6842 1885
593 1468.53
9 -16

3.5
21.03.01 730 80.3 6842 1885 0 591 1461.54 -7 9 -16

3.5 No more zero evaporation rate?
21.03.01 1800 80.75 6833 1852
586 1444.06
8.5 -15

3.5 -18L in 11 hours
22.03.01 730 81.3 6833 1852 -33 585 1440.56 -21 8.5 -15

3.5 I hope this settles
22.03.01 1800 81.75 6829 1837
583 1433.57
8.5 -15

3.5
23.03.01 730 82.3 6827 1830 -22 580 1423.08 -17 8.5 -15

3.5 HDI and flow match
23.03.01 1800 82.75 6826 1826
579 1419.58
8.5 -15

3.5
24.03.01 730 83.3 6822 1812 -18 575 1405.59 -17 8.5 -15

3.5 HDI, flow, wt match
24.03.01 1800 83.75 6821 1808
573 1398.6
8.5 -15

3.5
25.03.01 730 84.3 6819 1801 -11 570 1388.11 -17 8.5 -15

3.5
26.03.01 730 85.3 6814 1783 -18 565 1370.63 -17 8.5 -15

3.5 stabilization
26.03.01 1800 85.75 6811 1772
562 1360.14
8.5 -15

3.5
27.03.01 730 86.3 6808 1761 -22 558 1346.15 -24 8.5 -15

3.5 what happened?
27.03.01 1800 86.75 6806 1753
556 1339.16
8.5 -15

3.5
28.03.01 730 87.3 6803 1742 -18 549 1314.69 -31 9 -16

3.5 What's up with -31?
28.03.01 1800 87.75 6803 1742
548 1311.19
9 -16

3.5 adjust to 6psig
29.03.01 730 88.3 6803 1742 0 548 1311.19 -3 7 -12

4 better
29.03.01 1800 88.75 6797 1721
548 1311.19
6 -10

5
30.03.01 730 89.3 6794 1710 -33 548 1311.19 0 6 -10

5
30.03.01 1800 89.75 6794 1710
548 1311.19
6 -10

6.5
31.03.01 730 90.3 6792 1702 -7 548 1311.19 0 6 -10

6.5
31.03.01 1800 90.75 6789 1691
548 1311.19
6 -10

6.5
01.04.01 730 91.3 6786 1681 -22 548 1311.19 0 6.5 -11

6.5
02.04.01 730 92.3 6781 1662 -18 548 1311.19 0 6.5 -11

6.5
02.04.01 1800 92.75 6779 1655
532 1255.24
6.5 -11

6.5
03.04.01 730 93.3 6774 1637 -25 527 1237.76 -73 6 -10

6.5 ? ? ?
03.04.01 1800 93.75 6771 1626
525 1230.77
6 -10

6.5
04.04.01 730 94.3 6768 1615 -22 521 1216.78 -21 6 -10

6.5 average 14L/D over the past week
04.04.01 1800 94.75 6767 1611
517 1202.8
6 -10

6.5 extraction tomorrow
05.04.01 730 95.3 6763 1597 -18 513 1188.81 -28 6 -10

6.5
05.04.01 1800 95.75 6653 1196
364

0 0

0 fill three 100L dewars
06.04.01 730 96.3 6657 1210 -384 364 746.63 -442 5 -9

5
06.04.01 1800 96.75 6654 1199
363

5 -9

5
07.04.01 730 97.3 6651 1188 -22 361 743.88 -8 6 -10

6
08.04.01 730 98.3 6645 1167 -22 358 738.37 -6 6 -10

6
09.04.01 730 99.3 6639 1145 -22 356 724.67 -14 6.5 -11

6.5
09.04.01 1800 99.75 6639 1145 0 351 711.08 -14 9 -23024

6.5
10.04.01 730 100.3 6635 1130 -15 346 697.58 -13 9 -23024

6.5 ? ? ?
10.04.01 1800 100.75 6632 1119 -11 343 689.54 -8 9 -23024

6.5
11.04.01 730 101.3 6630 1112 -7 337 673.55 -16 9 -23024

6.5
11.04.01 1800 101.75 6624 1090 -22 335 668.25 -5 9 -23024

6.5 big weight drop in 10 hours
12.04.01 730 102.3 6623 1086 -4 332 660.33 -8 9 -23024

6.5
12.04.01 1800 102.75 6622 1083 -4 329 652.45 -8 9 -23024

6.5 extraction tomorrow
13.04.01 730 103.3 6618 1068 -15 324 639.39 -13 9 -23024

6.5 transfer LHe into 250L, 100L, and the
13.04.01 1800 103.75 6417 335 -729 0 0 -639




remaining into 500L dewar.



6451 should equal 0 liters of LHe









Theodore is retired for the winter with our














thanks and appreciation.