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WARNING: This spreadsheet contains rules of thumb and should be used for estimating only
Press Ventilation Rate, Sizing of Heating & Cooling Loads Press Psychrometric Chart
Press Duct Sizing & Estimation of System Pressure Loss Press Psychrometric Calcs
Press Fan Laws, Changes to Fan Duty Press Conversions
Press Sizing Pressure Relief Outlets, Door Air Loss Press Natural Ventilation by Temp Diff.
Press Duct Weight & Flange Drilling Press Load Estimate Sheet
Press Pressure Loss Spreadsheet Press Date Plan Set Up
Press Sound Attenuation Spreadsheet Press U Values
Press Preliminary Pipe Sizing Press Hygrometric Sheet
Press Air Leakage Test Sheet Press Process
Press Module Temperature Press Noise Addition
HVAC CALC.
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1768
Dia.
Pa
Pa
Pa
ANSWER
2406 mm dia.
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ough opening
Pressure relief outlet
ough closed door
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Start Date: 22-Oct-01 Days freq. 1
Days long 13
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HEAT FLOW HEAT FLOWHORIZ. UP DOWN HORIZ. UP DOWN
Rsi 0.13 0.1 0.17 Rsi 0.13 0.1 0.17
Rso 0.04 0.04 0.04 Rso 0.04 0.04 0.04
Rsi+Rso 0.17 0.14 0.21 Rsi+Rso 0.17 0.14 0.21
R air gap 0.18 0.12 0.12 R air gap 0 0 0
R total 0.52 0.4 0.54 R total 0.34 0.28 0.42
L1 (m) 0.005 0.005 0.005 L1 (m) 0.005 0.005 0.005
K1 50 50 50 K1 50 50 50
L2 (m) 0.1 0.1 0.1 L2 (m) 0.1 0.1 0.1
K2 0.057 0.057 0.057 K2 0.057 0.057 0.057
L3 (m) 0.05 0.05 0.05 L3 (m) 0 0 0
K3 0.026 0.026 0.026 K3 1 1 1
L4 (m) 0.015 0.015 0.015 L4 (m) 0.015 0.015 0.015
K4 0.16 0.16 0.16 K4 0.16 0.16 0.16
N.B:- Enter 'k' from table below. N.B:- Enter 'k' from table below.
Where no material is used enter L=0 & K=1. Where no material is used enter L=0 & K=1.
U-value = U-value =
(W/m2o
C) (W/m2o
C)0.503 0.4860.243 0.248 0.244 0.495
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1
Airflow 3.62 m3/s
PROCESS ON PROCESS OFF
Sensible Cooling 42.3 kW
23 C (db) De-humidification 46.0 kW 14.8 C (db)
80 % rh Energy Change 89.2 kW 95 % rh
Water Removed 0.02035 litres/s
73.26797 kg/h
14.25 g/kg Moisture Content 9.51 g/k
0.8578 m3/kg Specific Volume 0.8278 m
3/k
59.472 kJ/kg Specific Enthalpy 38.329 kJ/k
17.81 g/kg Saturation Moisture Content 10.01 g/k
23.140 kJ/kg Specific Enthalpy Dry Air 14.080 kJ/k
28.08 Pa Saturation Vapour Pressure 15.98 Pa
HYGROMETRIC DATA (0oC to 45
oC)
HYGROMETRIC TABLES
DRY BULB RELATIVE MOISTURE SPECIFIC SPECIFIC SATURATED ENTHALPY SATURATED
TEMP. HUMIDITY CONTENT VOLUME ENTHALPY MOISTURE OF DRY AIR VAPOURoC. % kg/kg m
3/kg kJ/kg CONTENT, kg/kg kJ/kg PRESS, Pa
0 50 0.0019 0.7758 4.8310 0.003789 0.000 6.108
1 50 0.0020 0.7788 6.2016 0.004075 1.006 6.566
2 50 0.0022 0.7819 7.5965 0.004380 2.012 7.055
3 50 0.0024 0.7849 9.0182 0.004706 3.018 7.575
4 50 0.0025 0.7880 10.4666 0.005053 4.024 8.129
5 50 0.0027 0.7911 11.9431 0.005422 5.030 8.719
6 30 0.0017 0.7927 10.4852 0.005816 6.036 9.346
7 50 0.0031 0.7973 14.9916 0.006235 7.042 10.013
8 50 0.0033 0.8004 16.5663 0.006681 8.048 10.720
9 50 0.0036 0.8035 18.1766 0.007155 9.054 11.470
10 95 0 0073 0 8112 28 6139 0 007659 10 060 12 270
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nergy ange
m3/s
5.25
I nlet Condition Fan Cooling Outlet Condition
20 C (db) 14 C (db)
84 % rh 95 % rh
kW
-38.3 Sensible Cooling
0.01239 kg/kg Moisture Content -46.71 Latent Cooling 0.00951 kg/kg
0.84664 m3/kg Specific Volume 0.82554 m
3/kg
51.70450 kJ/kg Specific Enthalpy 38.32923 kJ/kg
0.01475 kg Specific Moisture Conteny -58.88 kg/h 0.01001 kg
20.11000 kJ/kg Enthalpy Dry air Water Removed 14.08000 kJ/kg
23.37000 Pa Saturated Vapour Pressure 15.98000 Pa
Moisture content At inlet 0.076830 kg
Moisture content At outlet 0.060475 kg
Moisture change -0.016355 kg
-58.88 kg/h
Sensible change -38.35 kWLatent change -46.71 kW
Total change -85 kW
####
####
-85
kW Total
HVAC Process
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HYGROMETRIC TABLES
Dry Bulb Moisture Specific Specific Saturated Enthalpy SATURATED
Temp. R.H. Content Volume Enthalpy Moisture of dry air VAPOURoC. % kg/kg m
3/kg kJ/kg Content kg kJ/kg PRESS, Pa
0 50 0.0019 0.7758 4.8310 0.003789 0.000 6.108
1 50 0.0020 0.7788 6.2016 0.004075 1.006 6.566
2 50 0.0022 0.7819 7.5965 0.004380 2.012 7.055
3 50 0.0024 0.7849 9.0182 0.004706 3.018 7.575
4 50 0.0025 0.7880 10.4666 0.005053 4.024 8.1295 50 0.0027 0.7911 11.9431 0.005422 5.030 8.719
6 30 0.0017 0.7927 10.4852 0.005816 6.036 9.346
7 50 0.0031 0.7973 14.9916 0.006235 7.042 10.013
8 50 0.0033 0.8004 16.5663 0.006681 8.048 10.720
9 50 0.0036 0.8035 18.1766 0.007155 9.054 11.470
10 50 0.0038 0.8067 19.8252 0.007659 10.060 12.270
11 50 0.0041 0.8099 21.5074 0.008194 11.060 13.120
12 50 0.0044 0.8131 23.2428 0.008763 12.070 14.020
13 50 0.0047 0.8164 25.0229 0.009367 13.080 14.970
14 50 0.0050 0.8197 26.8428 0.010010 14.080 15.980
15 50 0.0054 0.8230 28.7325 0.010700 15.090 17.040
16 50 0.0057 0.8263 30.6478 0.011410 16.100 18.170
17 50 0.0061 0.8296 32.6168 0.012170 17.100 19.360
18 50 0.0065 0.8330 34.6595 0.012980 18.110 20.630
19 50 0.0069 0.8365 36.7560 0.013840 19.110 21.960
20 78 0.0115 0.8455 49.4478 0.014750 20.110 23.370
21 50 0.0079 0.8435 41.1603 0.015710 21.130 24.860
22 50 0.0084 0.8470 43.4608 0.016730 22.130 26.430
23 50 0.0089 0.8506 45.8478 0.017810 23.140 28.080
24 50 0.0095 0.8543 48.3013 0.018950 24.140 29.83025 50 0.0101 0.8580 50.8540 0.020160 25.150 31.660
26 50 0.0107 0.8617 53.4833 0.021430 26.160 33.600
27 50 0.0114 0.8655 56.2045 0.022780 27.160 35.640
28 50 0.0121 0.8694 59.0378 0.024210 28.170 37.790
29 50 0.0129 0.8733 61.9730 0.025720 29.180 40.050
30 50 0.0137 0.8773 65.0003 0.027310 30.180 42.420
31 50 0.0145 0.8813 68.1650 0.029000 31.190 44.920
32 50 0.0154 0.8855 71.4318 0.030770 32.200 47.540
33 50 0.0163 0.8897 74.8288 0.032650 33.200 50.290
34 50 0.0173 0.8940 78.3633 0.034630 34.210 53.190
35 50 0 0184 0 8984 82 0508 0 036730 35 220 56 220
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Specific Enthalpy Volume Sp. Vol Air on Air off
kJ/kg kjJ/kg m3/s m
3/kg db % db % kW
20 54 1 0.883 10 50% 35 20% -38.505 1
20 30 1 0.847 10 50% 25 10% -11.806 2
116 76 1 0.871 40 60% 25 100% 45.924 3
79 39 1 0.839 45 20% 20 50% 47.676 4
79 65 1 0.877 45 20% 30 50% 15.964 5
56 44 1 0.866 42 10% 30 20% 13.857 644 56 1 0.866 30 20% 42 10% -13.857
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Back
BLACK MILD STEEL PIPE SIZES GALVANISED PIPES
FOR VARIOUS kW DUTIES. FOR HWS AND CWS SYSTEMS
Max. Equivalent Equivalent HWS
Diameter, Max. Water kW Rated Output Simultaneous Flow Rate Pressure Return Dia.
mm. Flow Rate, l/s. T=5oC
. T=10
oC
. T=15
oC
.Demand Units l/s. Drop, Pa. mm
10 0.03 0.6 1.3 2
15 0.07 1.5 3 4.5 10 0.06 200 15
20 0.16 3.4 6.7 10 25 0.15 220 15
25 0.35 7 15 22 50 0.3 250 20
32 0.71 15 30 45 150 0.6 210 20
40 1.0 20 40 60 250 0.9 200 25
50 2.0 40 80 120 500 1.5 150 32
65 4.0 85 170 250 1500 3.6 210 32
80 6.0 125 250 375 2500 5.5 200 40
100 13.0 275 550 800 5000 10.0 160 50
150 36.0 750 1500 2250 TYPICAL PRACTICAL DEMAND UNITS
200 90.0 1850 3700 5500 Basin or Bidet ( Hot & Cold) 3 1.5 ea
Sink ( Hot & Cold) 15 7.5 each
NOTE Bath ( Hot & Cold) 20 10 each
1) For LPHW heating, typical T= 82oC - 71
oC = 11
oC. Shower ( Hot & Cold) 8 4 ea
2) For fan coil unit cooling, typical T= 12oC - 7
oC = 5
oC. WC (Cold only) 8 only
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JOB NO.
MODULE INTEGRITY LOCATION
TEST RESULTS DATE
TEST BYWITNESS
Module / Area Tested: Control Room
The following data is used to calculate the actual leakage rate for the module
Allowable Leakage Rate = 0.20 air changes per hour (ac/h)
Volume of Module = 548.00
Maximum Permissible Supply (Leakage) Air Volume = 109.60
(Based on 0.2 ac/h) (i.e. 0.030
MEASURED RESULTS
Max Permitted Leakage Rate for Control Room = 109.60
Leakage Rate During Pressurisation = 110.40
Leakage Rate During Depressurisation = 108.20
Average Measured Air Leakage Rate = 109.30
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m3
m3/h
m3/s)
m3/h
m3/h
m3/h
m3/h
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58 20.19 1419.81 35.67
59 27.27 1412.73 35.84
60 34.33 1405.67 36.01
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Accommodation Module
length 15 m
breadth 15 m
height 30.25 mSurface Area (A) 2265 m2
Enclosed Volume 6806.25 m3
U 0.3 w/m2degC
(initial) Ti 24 degC
To 10 degC
Gains 58.35 kW (kj/s)
To
Module heat Surplus Module hea Surplus 5
Loss Energy Loss Energy
kj kj kj kj
978.48 2522.52 774.63 2726.37
991.07 2509.93 788.24 2712.76
1003.60 2497.40 801.78 2699.22
1016 07 2484 93 815 25 2685 75
0102
030
0
5
10
15
20
25
30
35
40
45
50
1
5
9
13
17
2125 29
3337
4145
49
(To) Temp Outside
(Ti)Tempinside
Minutes
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1184.20 2316.80 996.98 2504.02
1195.77 2305.23 1009.48 2491.52
1207.27 2293.73 1021.91 2479.09
1218.72 2282.28 1034.29 2466.71
1230.12 2270.88 1046.60 2454.40
1241.45 2259.55 1058.85 2442.15
1252.73 2248.27 1071.04 2429.96
1263.95 2237.05 1083.17 2417.83
1275.12 2225.88 1095.24 2405.76
1286.23 2214.77 1107.25 2393.75
1297.29 2203.71 1119.20 2381.80
1308.29 2192.71 1131.09 2369.91
1319.23 2181.77 1142.92 2358.08
1330.12 2170.88 1154.69 2346.311340.96 2160.04 1166.40 2334.60
1351.74 2149.26 1178.06 2322.94
1362.47 2138.53 1189.65 2311.35
1373.15 2127.85 1201.19 2299.81
1383.77 2117.23 1212.67 2288.33
1394.34 2106.66 1224.09 2276.91
1404.85 2096.15 1235.46 2265.54
1415.31 2085.69 1246.77 2254.23
1425.73 2075.27 1258.02 2242.981436.09 2064.91 1269.22 2231.78
1446.39 2054.61 1280.36 2220.64
1456.65 2044.35 1291.44 2209.56
1466.85 2034.15 1302.47 2198.53
1477.01 2023.99 1313.44 2187.56
1487.11 2013.89 1324.36 2176.64
1497.16 2003.84 1335.23 2165.77
1507.17 1993.83 1346.04 2154.96
1517.12 1983.88 1356.80 2144.20
1527.02 1973.98 1367.50 2133.50
1536.88 1964.12 1378.15 2122.85
1546.68 1954.32 1388.75 2112.25
1556.44 1944.56 1399.29 2101.71
1566.14 1934.86 1409.78 2091.22
1575.80 1925.20 1420.22 2080.78
1585.41 1915.59 1430.61 2070.39
1594.97 1906.03 1440.94 2060.06
1604.49 1896.51 1451.23 2049.77
1613 95 1887 05 1461 46 2039 54
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Module heat Surplus Module hea Surplus Module heat Surplus
Loss Energy Loss Energy Loss Energy
kj kj kj kj kj kj
570.78 2930.22 366.93 3134.07 163.08 3337.92
585.41 2915.59 382.57 3118.43 179.74 3321.26
599.96 2901.04 398.14 3102.86 196.32 3304.68
614 44 2886 56 413 63 3087 37 212 82 3288 18
5357
61
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809.75 2691.25 622.53 2878.47 435.30 3065.70
823.18 2677.82 636.89 2864.11 450.60 3050.40
836.55 2664.45 651.19 2849.81 465.83 3035.17
849.85 2651.15 665.42 2835.58 480.98 3020.02
863.09 2637.91 679.57 2821.43 496.06 3004.94
876.25 2624.75 693.65 2807.35 511.06 2989.94
889.36 2611.64 707.67 2793.33 525.98 2975.02
902.39 2598.61 721.61 2779.39 540.83 2960.17
915.36 2585.64 735.49 2765.51 555.61 2945.39
928.27 2572.73 749.29 2751.71 570.31 2930.69
941.11 2559.89 763.03 2737.97 584.94 2916.06
953.89 2547.11 776.69 2724.31 599.50 2901.50
966.61 2534.39 790.29 2710.71 613.98 2887.02
979.26 2521.74 803.82 2697.18 628.39 2872.61991.84 2509.16 817.29 2683.71 642.73 2858.27
1004.37 2496.63 830.68 2670.32 657.00 2844.00
1016.83 2484.17 844.01 2656.99 671.19 2829.81
1029.23 2471.77 857.28 2643.72 685.32 2815.68
1041.57 2459.43 870.47 2630.53 699.38 2801.62
1053.85 2447.15 883.60 2617.40 713.36 2787.64
1066.06 2434.94 896.67 2604.33 727.28 2773.72
1078.22 2422.78 909.67 2591.33 741.12 2759.88
1090.31 2410.69 922.60 2578.40 754.90 2746.101102.35 2398.65 935.48 2565.52 768.61 2732.39
1114.32 2386.68 948.28 2552.72 782.24 2718.76
1126.23 2374.77 961.02 2539.98 795.82 2705.18
1138.09 2362.91 973.70 2527.30 809.32 2691.68
1149.88 2351.12 986.32 2514.68 822.76 2678.24
1161.62 2339.38 998.87 2502.13 836.12 2664.88
1173.30 2327.70 1011.36 2489.64 849.43 2651.57
1184.91 2316.09 1023.79 2477.21 862.66 2638.34
1196.48 2304.52 1036.15 2464.85 875.83 2625.17
1207.98 2293.02 1048.46 2452.54 888.94 2612.06
1219.43 2281.57 1060.70 2440.30 901.98 2599.02
1230.81 2270.19 1072.88 2428.12 914.95 2586.05
1242.15 2258.85 1085.00 2416.00 927.86 2573.14
1253.42 2247.58 1097.06 2403.94 940.70 2560.30
1264.64 2236.36 1109.06 2391.94 953.48 2547.52
1275.81 2225.19 1121.00 2380.00 966.20 2534.80
1286.91 2214.09 1132.88 2368.12 978.85 2522.15
1297.96 2203.04 1144.70 2356.30 991.44 2509.56
1308 96 2192 04 1156 47 2344 53 1003 97 2497 03
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Module heat Surplus Module hea Surplus Module heat Surplus
Loss Energy Loss Energy Loss Energy
kj kj kj kj kj kj
-40.77 3541.77 -244.62 3745.62 -448.47 3949.47
-23.09 3524.09 -225.92 3726.92 -428.76 3929.76
-5.50 3506.50 -207.32 3708.32 -409.14 3910.14
12 00 3489 00 188 81 3689 81 389 62 3890 62
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248.07 3252.93 60.85 3440.15 -126.38 3627.38
264.31 3236.69 78.02 3422.98 -108.27 3609.27
280.47 3220.53 95.11 3405.89 -90.25 3591.25
296.55 3204.45 112.11 3388.89 -72.33 3573.33
312.54 3188.46 129.03 3371.97 -54.49 3555.49
328.46 3172.54 145.86 3355.14 -36.74 3537.74
344.29 3156.71 162.61 3338.39 -19.08 3520.08
360.05 3140.95 179.27 3321.73 -1.51 3502.51
375.73 3125.27 195.85 3305.15 15.97 3485.03
391.33 3109.67 212.35 3288.65 33.37 3467.63
406.85 3094.15 228.77 3272.23 50.68 3450.32
422.30 3078.70 245.10 3255.90 67.90 3433.10
437.67 3063.33 261.35 3239.65 85.04 3415.96
452.96 3048.04 277.52 3223.48 102.09 3398.91468.17 3032.83 293.62 3207.38 119.06 3381.94
483.31 3017.69 309.63 3191.37 135.94 3365.06
498.38 3002.62 325.56 3175.44 152.74 3348.26
513.36 2987.64 341.41 3159.59 169.45 3331.55
528.28 2972.72 357.18 3143.82 186.08 3314.92
543.12 2957.88 372.87 3128.13 202.63 3298.37
557.88 2943.12 388.49 3112.51 219.09 3281.91
572.57 2928.43 404.02 3096.98 235.48 3265.52
587.19 2913.81 419.48 3081.52 251.78 3249.22601.74 2899.26 434.87 3066.13 268.00 3233.00
616.21 2884.79 450.17 3050.83 284.13 3216.87
630.61 2870.39 465.40 3035.60 300.19 3200.81
644.94 2856.06 480.55 3020.45 316.17 3184.83
659.19 2841.81 495.63 3005.37 332.07 3168.93
673.38 2827.62 510.63 2990.37 347.89 3153.11
687.49 2813.51 525.56 2975.44 363.62 3137.38
701.54 2799.46 540.41 2960.59 379.29 3121.71
715.51 2785.49 555.19 2945.81 394.87 3106.13
729.42 2771.58 569.89 2931.11 410.37 3090.63
743.25 2757.75 584.53 2916.47 425.80 3075.20
757.02 2743.98 599.08 2901.92 441.15 3059.85
770.71 2730.29 613.57 2887.43 456.43 3044.57
784.34 2716.66 627.98 2873.02 471.62 3029.38
797.90 2703.10 642.32 2858.68 486.75 3014.25
811.40 2689.60 656.59 2844.41 501.79 2999.21
824.82 2676.18 670.79 2830.21 516.76 2984.24
838.18 2662.82 684.92 2816.08 531.66 2969.34
851 47 2649 53 698 98 2802 02 546 48 2954 52
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Minutes 0 5
0 24 24
1 24.31 24.33
2 24.62 24.67
3 24.92 25.00
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17 29.05 29.45
18 29.33 29.76
19 29.61 30.07
20 29.89 30.37
21 30.17 30.67
22 30.45 30.97
23 30.73 31.27
24 31.00 31.57
25 31.28 31.86
26 31.55 32.16
27 31.82 32.45
28 32.09 32.74
29 32.36 33.03
30 32.63 33.3231 32.89 33.61
32 33.16 33.90
33 33.42 34.18
34 33.68 34.46
35 33.94 34.74
36 34.20 35.02
37 34.46 35.30
38 34.71 35.58
39 34.97 35.8640 35.22 36.13
41 35.48 36.40
42 35.73 36.68
43 35.98 36.95
44 36.23 37.22
45 36.48 37.48
46 36.72 37.75
47 36.97 38.02
48 37.21 38.28
49 37.45 38.54
50 37.70 38.80
51 37.94 39.06
52 38.18 39.32
53 38.41 39.58
54 38.65 39.83
55 38.89 40.09
56 39.12 40.34
57 39.35 40.60
58 39 59 40 85
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10 15 20 25 30 35
24 24 24 24 24 24
24.36 24.38 24.41 24.43 24.46 24.48
24.72 24.77 24.82 24.87 24.91 24.96
25.07 25.15 25.22 25.29 25.37 25.44
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29.86 30.27 30.68 31.08 31.49 31.90
30.19 30.62 31.05 31.48 31.91 32.34
30.52 30.97 31.43 31.88 32.33 32.79
30.85 31.32 31.80 32.27 32.75 33.23
31.17 31.67 32.17 32.67 33.16 33.66
31.49 32.01 32.54 33.06 33.58 34.10
31.81 32.36 32.90 33.44 33.99 34.53
32.13 32.70 33.27 33.83 34.40 34.96
32.45 33.04 33.63 34.22 34.80 35.39
32.77 33.38 33.99 34.60 35.21 35.82
33.08 33.72 34.35 34.98 35.61 36.24
33.40 34.05 34.70 35.36 36.01 36.67
33.71 34.38 35.06 35.74 36.41 37.09
34.02 34.72 35.41 36.11 36.81 37.5034.33 35.05 35.76 36.48 37.20 37.92
34.64 35.37 36.11 36.85 37.59 38.33
34.94 35.70 36.46 37.22 37.99 38.75
35.24 36.03 36.81 37.59 38.37 39.16
35.55 36.35 37.15 37.96 38.76 39.56
35.85 36.67 37.50 38.32 39.15 39.97
36.15 36.99 37.84 38.68 39.53 40.37
36.45 37.31 38.18 39.04 39.91 40.78
36.74 37.63 38.52 39.40 40.29 41.1837.04 37.95 38.85 39.76 40.67 41.57
37.33 38.26 39.19 40.11 41.04 41.97
37.62 38.57 39.52 40.47 41.42 42.36
37.91 38.88 39.85 40.82 41.79 42.75
38.20 39.19 40.18 41.17 42.16 43.14
38.49 39.50 40.51 41.52 42.52 43.53
38.78 39.81 40.83 41.86 42.89 43.92
39.06 40.11 41.16 42.21 43.26 44.30
39.35 40.41 41.48 42.55 43.62 44.69
39.63 40.72 41.80 42.89 43.98 45.07
39.91 41.02 42.12 43.23 44.34 45.44
40.19 41.32 42.44 43.57 44.69 45.82
40.47 41.61 42.76 43.90 45.05 46.20
40.74 41.91 43.07 44.24 45.40 46.57
41.02 42.20 43.39 44.57 45.75 46.94
41.29 42.50 43.70 44.90 46.10 47.31
41.57 42.79 44.01 45.23 46.45 47.68
41.84 43.08 44.32 45.56 46.80 48.04
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opening opening
tom opening
tom opening
t diff between openings
o-efficient (typ 0.61)
e at high levele at low level
bient temperature
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