Table 1 Table of nomenclature.
From: Reliability and performance evaluation of a solar PV-powered underground water pumping system
Abbreviation | Description | Abbreviation | Description |
|---|---|---|---|
PV | Photovoltaic | Isc | Short circuit Current, A |
TDH | Total dynamic head, m | STC | Standard test conditions |
Q | Pump flow rate, m3/hr | PDC | Power of direct current |
Hf | Friction losses, m | PAC | Power of alternative current |
Hst | Static head, m | Hz | Hertz |
Hd | Drawdown head, m | IR | Intensity of solar radiation |
Hp | Pressure head, m | Voc | Open circuit Voltage, V |
HP | Hydraulic power, W | ηinv | Efficiency of the inverter |
MPPT | Maximum power point tracking | ηpump | Efficiency of the pumping unit |
Pmax | Maximum Power, W | ηpanels | Efficiency of the solar panels |
Vmp | Maximum Power Voltage, V | ηall | Overall system efficiency |
Imp | Maximum Power Current, A | DC | Direct current |
