Putu Eka Widya Pratama headshot
Putu Eka Widya Pratama is a researcher at Sepuluh Nopember Institute of Technology

Putu Eka Widya Pratama SSi MSc RWTH in front of one of the white ponds of shrimp farmers in Gunung Anyar Tambak Village, Surabaya

Traditional aerators used in shrimp farming require an adequate power source – without it, shrimp production is not as effective or efficient. To help solve this issue, the Community Empowerment Real Work Lecture (KKN PM) team from Institut Teknologi Sepuluh Nopember (ITS) developed a photovoltaic-based aerator to boost farmers’ production.

PM I KKN team leader Putu Eka Widya Pratama SSi MSc RWTH says the aerators are essential to provide oxygen supplies to the farmed shrimp as they grow. The lecturer, who is also from Eka, explained that his team chose Gunung Anyar Tambak Village, Surabaya, to implement the innovation because it is developing its own shrimp farming industry and hopes to become a digital village through development of renewable energy.

A photovoltaic-based aerator is a solar-powered device that generates air bubbles that oxygenate the shrimp pond. This device will increase the quantity and quality of oxygen needed by the shrimp in the pond. “That way, the shrimp grow healthier and faster,” explained Eka.

In addition to using environmentally friendly energy, this device uses a system that works automatically. Eka explained that when the solar panel is exposed to sunlight, it releases electricity which is used by the controller to stabilize the energy output voltage from the solar panel. The controller puts the solar panel energy into the battery when the engine is not running – charging the battery.

solar-powered pond aerator
The researchers attached photovoltaic panels to a pond aerator

A photovoltaic-based aerator, developed by the ITS KKN PM Team, works to provide oxygen to one of the white shrimp farmers’ ponds, Gunung Anyar Tambak Village, Surabaya

When the engine is running, the power from the motor is taken from the battery and goes through the controller. When the charging voltage of the battery reaches a full state, the controller stops the power from entering the battery to prevent overcharging, improving the life of the battery. “That way, this aerator battery will last 10-15 years,” Eka said.

The components used in this aerator consist of a 200 Wp 24VDC solar panel, an aerator frame as a place for installing the solar panels, an eight-leaf windmill for rowing the water and aeration. -return to oxygen level, DC motor PG45 RPM 500 Torque 25 kg. It also includes a steering wheel, a buoy as a component lifter, as well as a box panel as a protective device that uses the power network.

To activate the aerator, farmers only need to use the power button on the box panel, which functions to activate and deactivate the system. The motor will automatically rotate the wheel to create air bubbles when activated. This aerator itself works according to how many hours and minutes. “This device will stop operating for four hours, from 11.00 to 14.00,” he said.

In the future, Eka hopes to use Internet of Things (IoT) technology in the aerator. IoT applications will allow farmers to control and monitor the aerator from home using an integrated smartphone. Currently, Eka hopes that the existing aerators will increase the production efficiency of farmers in Gunung Anyar Tambak Village. “Hopefully, this will improve the quality and quantity of shrimp farmers,” he said.

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