Solar pump system

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    16-Jul-2015

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Slide 1

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3-5 6000 .

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. inverter . . commutation. inverter 1500 Wp

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1970 .

. . . 3_ Reciprocating positive displacement pump

4_ Floating motor pump sets

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4_ Surface suction pumpsets . 8

200 250 .

2% 6-8% 25%. 4% 12% . 250 20 800Wp $6,000. .

The hydraulic energy required (kWh/day) = volume required (m/day) x head (m) x water density x gravity / (3.6 x 106) = 0.002725 x volume (m/day) x head (m) The solar array power required (kWp) = Hydraulic energy required (kWh/day) Av. daily solar irradiation (kWh/m/day x F x E) where F = array mismatch factor = 0.85 on average and E = daily subsystem efficiency = 0.25 - 0.40 typically 3kWp 1kWpRoy Barlow, Bernard McNelis and Anthony Derrick: Solar Pumping. An introduction and update on the technology, performance, costs and economics. IT Publications, 1993 Peter Fraenkel: Water Pumping Devices. A handbook for users and choosers. ITDG Publishing, 1997. Jeff Kenna and Bill Gillett: Solar Water Pumping. A handbook. IT Publications, 1985. U.R.S. Rentch: Solar Photovoltaics for Irrigation Water Pumping. SKAT, St. Gallen, 1982. Groundwater: Waterlines, Vol.20, No.2, October 2001, ITDG Publishing