Abstract
The objective of this study is to design a drip
irrigation system by photovoltaic pumping of a plot distributed in the sector
of the plain of vegetable crops (tomato, corn, potato and eggplant) of Bellel,
prefecture of Mamou. The various results obtained during this study mainly
relate to the determination of the meteorological parameters (temperature,
solar irradiation, precipitation and relative humidity) of the site, the daily
water requirements (150m3) for the irrigation of 7 hectares, of which 50 m3
for each crop plot (2,333 hectares) divided into 4 sectors, the geometric
dimensions of the drip irrigation system (67 booms for each sector for a total
of 268 booms, 63 drippers per boom, i.e. 31 pairs of drippers per boom), the
dimensions of the pumping system (HMT is 10.45m, daily flow of each pump 58.517
m3 or 14.203 m3/h, energy consumed by each motor pump
4443.586 Wh/d, the power of the inverter 4677.459 Wh/d and the peak power of
the PV system 1090.825 Wh/d). The characteristics of the photovoltaic field
(type of solar panel Cip-80-315 of unit peak power 315 Wp, total power of the
field 4728.24 Wp, voltage per branch 199 volts and total current in the
parallel connection 23.76 A). The PV array is made up of 5 modules in series
and 3 in parallel, for a total of 15 modules. The installation diagram for the
entire system has been completed. It emerges from this feasibility study that
the results obtained will serve as a basis for the design and implementation of
a drip irrigation system by photovoltaic pumping for market garden crops
throughout the plain of Bellel in particular and in general for the Guinea.
