Comparison Power Consumption 125 Watts Pump by Using AC and DC Based on Solar Energy

Abstract

The development of photovoltaic has shown the maturity of technology. The application can already be used as a source of electrical energy and is an environmentally friendly source of electrical energy. The use of PV technology in Indonesia has developed well for the generation of electricity for companies or household units as an alternative energy source. Currently, Indonesia has begun to develop electric car transportation by using batteries, so that it was need inverter equipment which change a direct current to the alternating current. This paper discusses the comparison of power consumption 125 watts pump by using alternating current (AC) and direct current (DC) based on solar energy using photovoltaic (PV). The type PV cell uses a 100-watt peak solar cell type silicon mounted on a portable basis and parallel connected. The PV is installed at Semarang region which connected by battery. The type battery is 100 AH, 12 V. The battery was connected to motor pump of 125 watts. There are two motors type which has specification as DC motor and AC motor. The DC motor should be connected by DC-DC converter before DC motor pump to increase the requirement voltage of motor pump while AC motor should be provided by inverter DC to AC. The pump was connected by piping system which suction pipe use a diameter of 32 mm and discharge pipe of 20 mm. The total head for both experiment is 4 m. The speed of motor was measured as in motor specification. The operating of PV was at 08.00 am – 16.00 pm. The result of the power consumption of the DC motor was more efficiency than by using AC motor. The operation of the battery using DC motor is about two times longer than AC motor.