By James J. Spilker
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85 — 2 cells deep 10 in. 22 — 3 cells deep 12 in. 22 Page 51 (Cont'd) Table 21. , 3236 lb, 8090 lb/ft 3 — Page 52 (Cont'd) Table 21. 22 — — wood chips) (table continued on next page) Page 53 (Cont'd) Table 21. 35 (table continued on next page) 20 Page 54 (Cont'd) Table 21. 5 in. 375 in. For properties of a particular product, use the value supplied by the manufacturer or by unbiased tests. /ft. c Resistance values are the reciprocals of C before rounding off C to two decimal places. d Lewis (1967).
This amount of heat is known as the latent heat of the air and moisture mixture. Locate 73°F dry bulb and 55°F wet bulb temperature on the chart. 25 Btu. Locate the 75°F dry bulb and 70°F wet bulb temperature point on the chart. 08 Btu. 83 Btu/lb of dry air. Extend these points to the right to the grains of moisture scale and read 104 grains at the beginning of the process and 36 Figure 123. Latent heat change and grains of moisture added. Page 27 grains of moisture per pound of dry air at the end of the process.
The sensible heat ratio is an indicator of the percentage of sensible heat removed compared to the total heat removed. It is representative of the lowest temperature at which the air can be supplied to the structure and still pick up the required amount of both sensible heat and latent heat. Each source of heat gain or loss must be considered separately and must be taken into account when estimating the size of a heating and/or cooling unit for the building. Thus, these loads are said to be estimated and are termed the heat load estimate.