sin título de diapositiva - goizper group · sin título de diapositiva author: juan luis zuazola...
TRANSCRIPT
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1 2013 - GOIZPER SPRAYING
to improve IRS
applications
New Tools
Iñigo Garmendia
Olaker Spraying R&D
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Introduction
1
2 2013 - GOIZPER SPRAYING
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3 2013 - GOIZPER SPRAYING
1. Introduction
Important Method to fight against transmission of Malaria
Indoor Residual Spraying (IRS)
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4 2013 - GOIZPER SPRAYING
1. Introduction
Indoor Residual Spraying (IRS)
IRS operator
• Efficiency
• IRS Operator´s safety
• IRS Operator´s Comfort
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IRS Efficiency
2
5 2013 - GOIZPER SPRAYING
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6 2013 - GOIZPER SPRAYING
1. Introduction
“Apply the correct dossage of insecticide on all surfaces
(specified by the insecticide manufacture) at the correct droplet size (Ø>200 microns WHO) ”
Objective of IRS Operators
HIGH COVERAGE
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7 2013 - GOIZPER SPRAYING
2. IRS Efficiency
3) Pressure in the nozzle/tank
4) Distance from the surface: 45 cm
5) Spray speed: 2.5 sec/m
1) Concentration of insecticide in
the tank
2) Nozzle: Even Fan 8001 or 8002
IRS SPRAYING PARAMETERS
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8 2013 - GOIZPER SPRAYING
2. IRS Efficiency
3) Distance from the surface: 45 cm
4) Spray speed: 5 sec for 2 m wall
5) Pressure in the nozzle/tank: variable
1) Concentration of insecticide in
the tank
2) Nozzle: Even Fan 8001 or 8002
Very difficult to spray uniform dosage on the walls
Using Traditional Spraying Equipment:
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9 2013 - GOIZPER SPRAYING
2. IRS Efficiency
2.1. Pressure variation in the tank & nozzle
NOT EASY Frequent checking of pressure gauge
250 m2
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10 2013 - GOIZPER SPRAYING
2. IRS Efficiency
Conclusions:
Considerable variation in the DOSAGE of
insecticide (aprox. ±25%) measured on wall surfaces
Pressure gauge
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11 2013 - GOIZPER SPRAYING
2. IRS Efficiency
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12 2013 - GOIZPER SPRAYING
2. IRS Efficiency
Uniform flow rate (lower value)
and Dosage (median value).
EASIER No need to worry about pressure
250 m2
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13 2013 - GOIZPER SPRAYING
Conclusions:
1. BETTER EFFICIENCY: Uniform dosage of insecticide is sprayed during all the operation
2. SAVING WATER and MORE COMFORTABLE: 20% less water is used to sprayed 250 m2 (8 ltr. Instead of 10 ltr.)
2. IRS Efficiency
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14 2013 - GOIZPER SPRAYING
2. IRS Efficiency
2.2. Nozzle Erosion
1) Nozzle material and internal
design
2) Insecticide type
3) Pressure in the nozzle (bar/psi)
4) Working temperature
MAIN EROSION FACTORS
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15 2013 - GOIZPER SPRAYING
2. IRS Efficiency
8002E Brass nozzle (3 bar)
8002E Hardened Stainless steel (3 bar)
60 30
% Flow rate
increase
Time (hour)
% 20
% 75
Erosion of nozzle provokes… Losing MONEY
Test made following the conditions described in ASAE standards for agricultural nozzle erosion (1991) with 6% of KAOLIN.
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16 2013 - GOIZPER SPRAYING
2. IRS Efficiency
Nozzle Internal Design using CFD software
Low erosion materials and
manufacturing processes
Recent Developments has led to…
more DURABLE and COMPETITIVE nozzles
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17 2013 - GOIZPER SPRAYING
2. IRS Efficiency
New low erosion nozzle (3 bar)
% Flow rate
increase
less than
% 10
Low Erosion Nozzles….. Saving MONEY
8002E Brass nozzle (3 bar)
8002E Hardened Stainless steel (3 bar)
60 30 Time (hour)
% 20
% 75
0
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18 2013 - GOIZPER SPRAYING
2. IRS Efficiency
2.3. Dispersion of the insecticide inside the tank
1 2 3
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Blockage of
Nozzles
3
19 2013 - GOIZPER SPRAYING
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20 2013 - GOIZPER SPRAYING
3. Blockage of nozzles
Blockage of nozzles … is one of the most frequent issues appointed by operators
Dirty water Placing the nozzle in the ground
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21 2013 - GOIZPER SPRAYING
3. Blockage of nozzles
Solution 1
Triple filtering system
1
Dirty water
3
Nozzle
Handle
Filling mouth
3.1. Blockage from inside particles
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22 2013 - GOIZPER SPRAYING
3. Blockage of nozzles
Solution 2
Internal Nozzle Design with higher free flow hole size
1
Dirty water
3.1. Blockage from inside particles
Narrow
Wider
Hole Size
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23 2013 - GOIZPER SPRAYING
3. Blockage of nozzles
3.2. Blockages from outside dirtyness
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IRS Operator´s
Safety
4
24 2013 - GOIZPER SPRAYING
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25 2013 - GOIZPER SPRAYING
4. IRS Operator´s Safety
4.1. Risk of insecticide contamination
High volume of inhalable insecticide droplets are sprayed
Respiratory Mask
Pressure (Nozzle)
% inhalable insecticide
3.8 bar (55 psi) 37 %
1.8 bar (25 psi) 20 %
Using Traditional Spraying Equipment:
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26 2013 - GOIZPER SPRAYING
4. IRS Operator´s Safety
Risk of insecticide contamination
Respiratory Mask
High volume of inhalable insecticide droplets are sprayed
Using Traditional Spraying Equipment:
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27 2013 - GOIZPER SPRAYING
4. IRS Operator´s Safety
New Tools
Low Pressure CFV Low Drift Nozzle
Maintains constant low spray pressure
Reduces production of small droplets volume
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28 2013 - GOIZPER SPRAYING
4. IRS Operator´s Safety
Traditional Spraying equipment
Inhalable insecticide …
37 – 20 %
Pressure Gauge Low Pressure CFV
Low Drift Nozzle
New Tools
10 % Better efficiency and lower risk
of contamination
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29 2013 - GOIZPER SPRAYING
4. IRS Operator´s Safety
Traditional Spraying equipment
Pressure Gauge
Safety Valve
Overpressurization is posible
Pressure automatically released at 4 bar/55psi
4.2. Risk of Overpressurizing the tank
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IRS Operator´s
Comfort
5
30 2013 - GOIZPER SPRAYING
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31 2013 - GOIZPER SPRAYING
5. IRS Operator’s Comfort
JOB done by an IRS OPERATOR
1 day IRS Round (55 days)
Houses sprayed
Strokes pressurizing sprayer:
Put on/take off the sprayer:
Hours carrying sprayer
10 550
4 220
840 46.000
25 385 16 Kgr.
One shoulder
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32 2013 - GOIZPER SPRAYING
5. IRS Operator’s Comfort
JOB done by an IRS OPERATOR
• Very tiring and uncomfortable task
• Risk to lose precision in spraying technique 16 Kgr.
One shoulder
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33 2013 - GOIZPER SPRAYING
5. IRS Operator´s Comfort
• Very Light Sprayers (less than 2Kgr. empty)
• More Comfortable (possible to carry in the back)
• Pressure, Corrosion and UV resistant
10 Kgr.
Two shoulders
NEW MATERIALS and MANUFACTURING PROCESSES
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Cleaning and
Maintenance
6
34 2013 - GOIZPER SPRAYING
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35 2013 - GOIZPER SPRAYING
6. Cleaning and Maintenance
New materials offer… new design possibilities
• Sprayer design (fewer parts)
• Very Easy • 100 % Tool free
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Conclusions
7
36 2013 - GOIZPER SPRAYING
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37 2013 - GOIZPER SPRAYING
7. Conclusions
• Importance of IRS
• Using New Tools already available increases efficiency, safety and comfort
• New tools deliver better IRS,
save money and protect lives
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38 2013 - GOIZPER SPRAYING Goizper S.Coop. - www.goizper.com