Johnson Controls YORK YPC Series - FIGURE 28 - Theoretical Stack Effect

JOHNSON CONTROLS
61
SECTION 19 – CHIMNEY DESIGN AND DRAFT THEORY
19
FORM 155.17-N1
ISSUE DATE: 4/1/2013
STACK TEMPERATURE
550°F (287.8°C)
500°F (260.0°C)
450°F (232.2°C)
400°F (204.4°C)
350°F (176.7°C)
300°F (148.9°C)
0 10 20 30 40 50 60 70 80 90 100
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
DRAFT EFFECT (INCHES WATER)
HEIGHT (FEET) ABOVE BURNER
60°F (15.6°C) AMBIENT TEMPERATURE
FIGURE 28 - THEORETICAL STACK EFFECT
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