irrigation system checks results – who’s responsible for poor performance
DESCRIPTION
Irrigation system checks results – who’s responsible for poor performance . Maxine Schache. Background. Story. Implications. Maxine. Grumble. Background. Background. Results. Representative sample. 64 Drip systems (49 flow rate variations) 59 Low level sprinklers. Results. Results. - PowerPoint PPT PresentationTRANSCRIPT
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Irrigation system checks results – who’s responsible for poor performance Maxine Schache
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Background
Story
Implications
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MaxineGrumble
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Background
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Background
0 5 10 15 20 25 300
2
4
6
8
10
12
14
16
drip
low level
overhead
Pressure variation %
Disc
harg
e va
riatio
n %
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ResultsRepresentative sample
64 Drip systems (49 flow rate variations)
59 Low level sprinklers
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Results
0 50 100 150 200 250 3000
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Drip pressure variation, discharge variation, nominal flow rate
Non PC 6.7,7.4,3
PC 13.6,8.3,2.2
PC 39.2,17.6, 1.6
PC 70.4, 11.4, 4.4
PC 69.2, 8,2.3
PC 11.8, 7.7, 2.3
PC 9.1, 2.4,2
PC 20, 11.5, 2.3
PC 12.1, 4.2, 2.3
PC 23.9, 9.5, 2
PC 10.3, 9.7, 1.6
PC 33.3, 4.2, 2.3
PC 10, 12.5, 2.3
Pressure KPa
Dis
char
ge L
/Hr
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Results
0 50 100 150 200 250 3000
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Drip pressure variation, discharge variation, nominal flow rate
Non PC 6.7,7.4,3
PC 13.6,8.3,2.2
PC 39.2,17.6, 1.6
PC 70.4, 11.4, 4.4
PC 69.2, 8,2.3
PC 11.8, 7.7, 2.3
PC 9.1, 2.4,2
PC 20, 11.5, 2.3
PC 12.1, 4.2, 2.3
PC 23.9, 9.5, 2
PC 10.3, 9.7, 1.6
PC 33.3, 4.2, 2.3
PC 10, 12.5, 2.3
Pressure KPa
Dis
char
ge L
/Hr
6.7% PV7.4% DV
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Results
0 50 100 150 200 250 3000
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Drip pressure variation, discharge variation, nominal flow rate
Non PC 6.7,7.4,3
PC 13.6,8.3,2.2
PC 39.2,17.6, 1.6
PC 70.4, 11.4, 4.4
PC 69.2, 8,2.3
PC 11.8, 7.7, 2.3
PC 9.1, 2.4,2
PC 20, 11.5, 2.3
PC 12.1, 4.2, 2.3
PC 23.9, 9.5, 2
PC 10.3, 9.7, 1.6
PC 33.3, 4.2, 2.3
PC 10, 12.5, 2.3
Pressure KPa
Dis
char
ge L
/Hr
33.3% PV4.2% DV
70.4% PV11.4% DV
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Results
0 50 100 150 200 250 3000
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Drip pressure variation, discharge variation, nominal flow rate
Non PC 6.7,7.4,3
PC 13.6,8.3,2.2
PC 39.2,17.6, 1.6
PC 70.4, 11.4, 4.4
PC 69.2, 8,2.3
PC 11.8, 7.7, 2.3
PC 9.1, 2.4,2
PC 20, 11.5, 2.3
PC 12.1, 4.2, 2.3
PC 23.9, 9.5, 2
PC 10.3, 9.7, 1.6
PC 33.3, 4.2, 2.3
PC 10, 12.5, 2.3
Pressure KPa
Dis
char
ge L
/Hr
9.1% PV2.4% DV
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Results
Drip 9/64 pressure5/49 discharge
Sprinkler38/59 pressure23/59 discharge12/59 DU
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Results
Grade Drips Low level sprinklers
A
B
C D
FAIL
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WHY SO BAD?
PC
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CID&
Industry confidence
&training
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?
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