An irradiation value and the required head in meters are given for a certain solar pumping system. By connecting the point for the power output in Wp of the solar array with an irradiation value, move vertical upwards to the intersection with the required head curve, then horizontal to the left to find the daily quantity of water that can be pumped ( m�/day)
Or the other way:
By starting from the daily required water amount horizontally to the intersection of the required head, then vertically down to the intersection with the expected solar irradiation, then horizontally to the left to find the required output of the solar array.
From the above curves, the maximum quantity of water in m�/h for a given solar array size in Wp and head in meters / ft can be found. Add at least 25% to the DC power to account for dirt, heat and other losses of the solar array.
Centrifugal multistage direct coupled on a LORENTZ brushless submersible motor. The pump is made from stainless steel with water lubricated rubber bearings. A non return valve is included.
The LORENTZ submersible motor, type EC 1200-C is a 2 pole synchronous brushless DC motor. Slide ring bearing and ceramic trust bearings are water lubricated. The motor raw earth magnets are hermetically sealed in stainless steel and encapsulated in synthetic resin. The motor is pressure compensated and there are no practical depth limitations for submergence. No electronics are inside the motor and the entire motor is water filled.
- Voltage: 3 X 100V electronically commutated
- Power: 1.6kW / 2.2HP
- Efficiency: 92% max
- Mounted at surface
- Well probe and float switch terminals
- MPPT ( max. power point tracking)
- Overload, temperature and reverse polarity protected
- Pump Speed control from 30% to full
- LED indicate status, pump speed water level, overload etc.
6 to 8 standard 12V modules can be connected in series. e.g. nom. Voltage 72 to 96V, max system Voltage Umax= 200V. For Systems above 1200Wp Solar array size min. 7 or 8 panels have to be wired in series.
Calculation of system performance is based on:
non tracked PV-generator, (see ETATRACK for increasing performance)
11h standard solar day
ambient average temperature of 30° C
13.3% generator efficiency
1% cable loss
Calculation of system performance is based on:
non tracked PV-generator, (see ETATRACK for increasing performance)
11h standard solar day
ambient average temperature of 30° C
1% cable loss
Calculation of system performance is based on:
non tracked PV-generator, (see ETATRACK for increasing performance)
11h standard solar day
ambient average temperature of 30�C
1% cable loss
Calculation of system performance is based on:
non tracked PV-generator, (see ETATRACK for increasing performance)
11h standard solar day
ambient average temperature of 30�C
1% cable loss
Calculation of system performance is based on:
non tracked PV-generator, (see ETATRACK for increasing performance)
11h standard solar day
ambient average temperature of 30�C
13.3% Generator efficiency
1% cable loss
Calculation of system performance is based on:
non tracked PV-generator, (see ETATRACK for increasing performance)
11h standard solar day
ambient average temperature of 30�C
13.3% Generator efficiency
1% cable loss
Calculation of system performance is based on:
non tracked PV-generator, (see ETATRACK for increasing performance)
11h standard solar day
ambient average temperature of 30�C
13.3% Generator efficiency
1% cable loss
Calculation of system performance is based on:
non tracked PV-generator, (see ETATRACK for increasing performance)
11h standard solar day
ambient average temperature of 30�C
13.3% Generator efficiency
1% cable loss
