115 / 220
臺灣農藥噴頭與飄散研究
113
表二、
4
種農民常用之白鐵扇形農藥噴頭於不同壓力下霧滴粒徑分布及流量，
Dv(10)
、
Dv(50)
及
Dv(90)
表示
10%
、
50%
及
90%
之霧滴小於此的粒徑大小
Table 2.
Droplet size and flow rate of four stainless steel fan spray nozzles. Dv(10), Dv(50) and
Dv(90) values indicate the size that 10%, 50% and 90% droplets were below, respectively
Code
F
G
H
I
Nozzle appear-
ance
Appearance label
or hole diameter
WP D-5
PL D-4
PL D-5
KS K-5
Droplet size (
μ
m, 2 kg/cm
2
)
Dv(10)
60.40 ± 2.36
75.35 ± 1.15
56.94 ± 0.59
62.30 ± 0.57
Dv(50)
112.4 ± 1.44
140.4 ± 0.66
106.2 ± 0.81
114.5 ± 0.12
Dv(90)
198.9 ± 3.38
247.8 ± 1.50
185.9 ± 0.85
201.1 ± 0.78
Flow rate (L/min)
2 kg/cm
2
0.38 ± 0.00
0.46 ± 0.00
0.40 ± 0.00
0.52 ± 0.00
Droplet size (
μ
m, 7 kg/cm
2
)
Dv(10)
38.96 ± 0.46
46.20 ± 0.19
41.71 ± 1.34
40.80 ± 0.11
Dv(50)
79.54 ± 0.32
92.76 ± 0.33
85.11 ± 0.77
84.23 ± 0.09
Dv(90)
146.7 ± 0.35
169.1 ± 0.92
153.9 ± 0.21
153.8 ± 0.29
Flow rate (L/min)
7 kg/cm
2
0.62 ± 0.00
0.78 ± 0.00
0.64 ± 0.00
0.77 ± 0.01
Droplet size (
μ
m, 10 kg/cm
2
)
Dv(10)
36.33 ± 1.16
46.74 ± 2.37
37.04 ± 0.42
41.10 ± 0.25
Dv(50)
74.70 ± 0.71
90.44 ± 1.74
78.63 ± 0.62
80.99 ± 0.39
Dv(90)
136.5 ± 0.29
160.6 ± 1.17
144.5 ± 1.85
143.6 ± 0.97
Flow rate (L/min)
10 kg/cm
2
0.72 ± 0.39
0.96 ± 0.00
0.70 ± 0.00
0.84 ± 0.00
Droplet size (
μ
m, 20 kg/cm
2
)
Dv(10)
30.19 ± 0.73
33.36 ± 2.21
27.18 ± 0.13
29.92 ± 0.49
Dv(50)
65.44 ± 0.27
68.85 ± 3.81
63.10 ± 0.77
65.84 ± 0.93
Dv(90)
121.0 ± 0.81
125.9 ± 6.05
119.7 ± 1.92
122.9 ± 1.91
Flow rate (L/min)
20 kg/cm
2
0.96 ± 0.00
1.34 ± 0.00
1.00 ± 0.00
1.12 ± 0.00