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035 _a.b10199810
099 9 _aAIT Thesis no. AE-93-10
100 1 _aVanalia, Sureshbhai Prabhudas
245 1 0 _aDevelopment of high voltage power supply for electrostatic sprayer
260 _aBangkok :
_bAsian Institute of Technology,
_c1993
300 _a59 leaves :
_bill.
490 1 _aThesis ;
_vno. AE-93-10
500 _aNot available for borrow (Copyright) Undisclosure.
500 _aA thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering.
520 _aInefficiency in application, water problems on small farms, need for timely treatment, increased cost of pesticides, environmental pollution, health hazard and drudgery involved in the operation have led to the development of new spraying techniques. In this conjunction, further development of hand-held spinning disc electrostatic sprayer was carried out. Major focus was to develop a compact, efficient and reliable High Voltage Power Supply (HVPS) for the electrostatic sprayer. The developed HVPS is able to deliver 3 kV de with an input of 6 V de. The power consumption is about 0.45 watt with an operating efficiency of 89 %. The overall dimensions of the HVPS are 7 cm x 5 cm x 4 cm and total cost is about US$ 6 . The electrical conductivities for Endosulphan, Monocrotophos and Fenvalerate all diluted with tap water (dilution factor of 1:3 .3, 1:25 and 1:10 respectively) were found to be nearly same as that of tap water which was 1.61 mmhos/cm. The presence of free ions in the tap water improved the electrical conductivity of spray solution thereby charge to mass ratio. This was found to be 4.92 mC/kg using Monocrotophos solution diluted with tap water for the developed sprayer.
502 _aThesis (M.Eng.) - Asian Institute of Technology
650 0 _aSpraying equipment
700 1 _aSingh, Gajendra,
_eChairperson
700 1 _aGupta, Chandra P.,
_eExamination committee
700 0 _aVilas Salokhe,
_eExamination committee
700 1 _aWindon, Van,
_eExamination committee
710 2 _aADB-Japan,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. AE-93-10
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B16007
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