. Effectiveness of orchard heaters. Fruit. 50 55 Air temperature °F Heating in tree zone ^y 65 0 5 10 Heating effect, F 15 Fig. 13. Vertical profiles of temperature and heating effect in the center portion of a 15-acre heated area. Test was made during a night on which there was a large inversion. 300 250 i 200 C o en 4> J 150 o a I 100 50 35 Average of 5 traverses, 2:50-5:55 Fuel consumption, 33 gal. per acre per hour r. Unheated temperatures, adjusted for natural differences between plots o Balloon + Fixed station Temperatures at center of heated x Balloon • Fixed station 40 45 50 Ai
. Effectiveness of orchard heaters. Fruit. 50 55 Air temperature °F Heating in tree zone ^y 65 0 5 10 Heating effect, F 15 Fig. 13. Vertical profiles of temperature and heating effect in the center portion of a 15-acre heated area. Test was made during a night on which there was a large inversion. 300 250 i 200 C o en 4> J 150 o a I 100 50 35 Average of 5 traverses, 2:50-5:55 Fuel consumption, 33 gal. per acre per hour r. Unheated temperatures, adjusted for natural differences between plots o Balloon + Fixed station Temperatures at center of heated x Balloon • Fixed station 40 45 50 Air temperature °F 60 \ ^- Heating a Heating ir v' tree zone ' ^ 65 0 5 10 Heating effect, °F 15 Fig. 14. Vertical profiles of temperature and heating effect in center portion of a 15-acre heated area. This test was made on a night during which there was a moderately small inversion. [21]. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kepner, Robert Allen, 1915-2003. Berkeley, Cal. : California Agricultural Experiment Station, The College of Agriculture, University of California
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Keywords: ., bookc, bookcentury1900, bookcollectionamericana, booksubjectfruit
