RESERVOIR SEDIMENTATION ASSESSMENT GUIDELINE - Aneel

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Reservoir Sedimentation Assessment Guidelineassimilate one or more straight lines and get the respective exponential equations,similar to the one presented below. For obtaining more than one line, the sedimentdischarge or the net discharge shall be ascending ordered.Q = a.Qsn(7.9)Figure 7.12 – Sediments rating curve for Manso River in Porto de Cima –measurements for the period 1977/1981 (Carvalho, 1994)Descarga líquida = net dischargeDescarga sólida total = total sediment dischargeThe respective loads, as well as the average values and required parameters maybe obtained through the rating curve equations for a given period. When a series ofdischarges for several years is available, it is used for obtaining the sediment dischargeseries, by accepting the equation as valid for the period (see examples in Tables 7.11and 7.12).ANEEL – Brazilian Electricity Regulatory Agency / SIH – Hydrologic Studies and Information Department34
Reservoir Sedimentation Assessment GuidelineTable 7.11 –Manso River in Porto de CimaSérie de vazões anuais = annual runoff seriesAno = YearANEEL – Brazilian Electricity Regulatory Agency / SIH – Hydrologic Studies and Information Department35
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RESERVOIR SEDIMENTATION ASSESSMENT GUIDELINE - Aneel

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