Condair Nortec RS 10, Инструкция по эксплуатации, Страница: 56 / 72

51
Total Humidification Load Calculation Nortec EL
2596995_0_EN_1905
5.1.1.3 Conditioned Air Moisture
The moisture content for the designed air conditions must be determined next. To ensure the humidifier
capacity will be able to satisfy design conditions, the calculations must be based on the highest desired
design air temperatures and humidity.
Once the highest design temperature and highest design humidity for the application are known, the
moisture content of the conditioned air supply can be determines as follows:
Conditioned Air Moisture (lb/ft
3
) = Maximum Supply Air Moisture (lb/ft
3
) × Design Humidity (% RH)
where,
• Max Supply Air Moisture is the moisture content at 100% RH, obtained from
Table 15 on page 51
(imperial units) or Table 16 on page 52 (metric units) corresponding to the highest design air tem-
perature for the conditioned environment;
• Design Humidity is the highest required humidity (% RH) for the conditioned environment.
5.1.1.4 Base Humidification Load
The base humidification load is the moisture required to bring the unconditioned supply air to meet the
conditioned air requirements, and is calculated as follows:
Base Load (lb/h) = Total Supply Air Volume (ft
3
/h) × {Conditioned Air Moisture (lb/ft
3
) - Supply Air
Moisture (lb/ft
3
)}
where,
• Total Supply Air Volume is the total volume of incoming unconditioned air (ft
3
/h), as described in
"Total Unconditioned Air Supply Volume" on page 50 .
• Conditioned Air Moisture is the moisture content (lb/ft
3
) of the conditioned air supply, as calculated
in "Conditioned Air Moisture" on page 51 ;
• Supply Air Moisture is the moisture content of the unconditioned air supply, as calcualted in
"Unconditioned Supply Air Moisture" on page 50
.
Table 15: Moisture Content of Air at 100% RH (Imperial Units)
°F lb/ft
3
°F lb/ft
3
°F lb/ft
3
°F lb/ft
3
°F lb/ft
3
-20 0.0000343 41 0.000424 61 0.000857 81 0.00163 101 0.00293
-10 0.0000414 42 0.000440 62 0.000886 82 0.00168 102 0.00302
-5 0.0000500 43 0.000457 63 0.000916 83 0.00173 103 0.00310
0 0.0000686 44 0.000474 64 0.000946 84 0.00178 104 0.00319
5 0.0000871 45 0.000491 65 0.000979 85 0.00184 105 0.00328
10 0.000111 46 0.000509 66 0.00101 86 0.00190 106 0.00337
15 0.000141 47 0.000527 67 0.00104 87 0.00195 107 0.00347
20 0.000177 48 0.000547 68 0.00108 88 0.00201 108 0.00356
25 0.000223 49 0.000567 69 0.00111 89 0.00207 109 0.00366
30 0.000279 50 0.000587 70 0.00116 90 0.00213 110 0.00376
31 0.000291 51 0.000609 71 0.00119 91 0.00220 111 0.00387
32 0.000304 52 0.000630 72 0.00123 92 0.00226 112 0.00397
33 0.000316 53 0.000651 73 0.00127 93 0.00233 113 0.00408
34 0.000327 54 0.000674 74 0.00131 94 0.00240 114 0.00419
35 0.000340 55 0.000699 75 0.00135 95 0.00247 115 0.00430