. Cooling apples and pears in storage rooms. Apples Cooling; Pear Cooling. Su Dply d Jct^ Si pply duct-? -*-<e ~1—*- <u a) «•— r— CO CO CO 37^r 25th stac from N. a 16th stac from N. a 4th stack from IN. a 26th stacl from N. w 10th stacl from N. w. 2nd stack from N. w; c/ Air velocity (fpm) A 32 X 105 A 24 CI C) CD -i: *i ii o ?.: A 13 { X X 13 Z (hr) 2u .5 23 .7 37 .8 24 !5. 6 20 .7 Air velocity (fpm) 62 X 1,0 X 2 a X 25 X ,r5 X 12 X Z (hr) 30 .4 23 3 5u .4 32 3 11. 3 31 .7 Z and air velocity at locations marked X Average cooling coefficient for these locations = Corresponding hal
. Cooling apples and pears in storage rooms. Apples Cooling; Pear Cooling. Su Dply d Jct^ Si pply duct-? -*-<e ~1—*- <u a) «•— r— CO CO CO 37^r 25th stac from N. a 16th stac from N. a 4th stack from IN. a 26th stacl from N. w 10th stacl from N. w. 2nd stack from N. w; c/ Air velocity (fpm) A 32 X 105 A 24 CI C) CD -i: *i ii o ?.: A 13 { X X 13 Z (hr) 2u .5 23 .7 37 .8 24 !5. 6 20 .7 Air velocity (fpm) 62 X 1,0 X 2 a X 25 X ,r5 X 12 X Z (hr) 30 .4 23 3 5u .4 32 3 11. 3 31 .7 Z and air velocity at locations marked X Average cooling coefficient for these locations = Corresponding half-cooling time, "Z" = Figure 31.—Cooling packed apples in standard wood boxes stacked in individual rows in wide storage room using a two-duct high-velocity air distribution system, plant IS. Figure 34 illustrates the pattern of cooling of loads placed in storage position with a clamp-type industrial truck in rows stacked crosswise to the normal airflow. Multiple overhead cooling units were located in each 20-foot bay of the structure. Not all loads at the test locations entered the room warm enough to determine their cooling perform- ance, and therefore velocities are given for some locations where characteristic cooling times are not indicated. Generally, the locations near the sidewalls cooled the best, and those locations near the center line of the building cooled quite Locations in rows where air flow is crosswise to stack rows Locations in rows where air flow is parallel to stack rows Average cooling coefficient for these locations = Average cooling coefficient for these locations = Corresponding half-cooling time, "Z" = hr. Corresponding half-cooling time, "Z" = 51. hr. Locations marked C are coldest during storage period and those marked W are warmest. Figure 32.—Cooling packed apples in standard wood boxes stacked in palletloads in storage room using a medium-velocity cooling system and supply
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