Diesel generators drive use of spray drones

ADVERTISING: they allow greater autonomy due to low fuel consumption; Another advantage is that these models operate at low speed and prevent the engine from overheating.

24.10.2023 | 20:08 (UTC -3)
Kelly Moraes, Cultivar edition

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The use of drones for crop spraying has been growing rapidly in recent years. The technology offers a number of advantages over traditional spraying methods such as tractors and airplanes. It has high efficiency and precision. And it reduces costs. To give you an idea of ​​the growth of technology in the country, last year alone, the Brazilian market for agricultural drones generated R$1 billion. The expectation is that this value will reach R$2 billion in the next two years.

“The expected evolution of drones, although apparently slow, brings evidence of a market with potential. The main challenge for this technology is related to batteries, with very limited charges. However, nowadays this is already being covered by the use of generators. This is because they provide reliable and constant electrical energy, which is essential for the use of drones in remote areas or without access to the electrical grid, a common reality for farmers”, says Gustavo Büll, Sales coordinator in the area of ​​industrial engines. and generator sets from Yanmar South America.

Although safer and more efficient, drones spray for approximately 10 minutes. Charging your battery takes around 15 minutes using a conventional generator, such as gasoline models, for example. This means that the battery power interval is longer than the operating time, which significantly impacts crop productivity.

Furthermore, generators with air-cooled gasoline engines need to be turned off to cool down after a certain period of use, and only then return to work. Therefore, they cannot be used continuously.

"Normally, drones need three batteries to operate: one for charging, one for cooling, and one for operation. However, with the use of diesel generators, such as those manufactured by Yanmar, it is possible to optimize applications and perform charging batteries in just 9 minutes. This means that the drones can operate without interruption, which increases productivity by up to 30%, in addition to not having to worry about cooling the generator set, since, in the brand's equipment, they are water-cooled and developed for professional and continuous use”, explains Büll.

“Diesel generators allow for much greater autonomy due to low fuel consumption. Another advantage is that these models operate at low rpm and prevent the engine from overheating, something that is very problematic in gasoline models. This is reflected in the useful life of the engine and also of the batteries, as they promote much more agile charging and cooling of the batteries”, emphasizes Edson Vitalli, from Avanhandava, in the interior of São Paulo, who has been working with agricultural drones in the region for more than two years. northwest of the state, serving medium and large rural producers, in crops such as corn, soybeans, sugar cane and pasture.

With the market potential, manufacturers in the sector, such as the Japanese multinational Yanmar, have invested in specific models of diesel generators to serve the agricultural drone market. Currently, the brand sells the YBG15TE model with continuous power of 15 kva. Equipped with a Yanmar 3TNV88-GGE engine, with 20 hp at 1.800 rpm. of power, mechanical governor and water cooling system, has a 12Vdc electrical system, equipped with an alternator for charging the battery and a protection system with temperature sensor and pressure switch, which activates the engine to stop in the event of overheating. The model has an average fuel consumption of 3,2 liters/hour, considering a 75% load, with a 65-liter polyethylene tank, which allows for an autonomy of more than 20 hours of uninterrupted use.

“The YBG15TE is an innovative solution that meets the needs of farmers who are adopting new technologies in crop spraying and increasingly demanding this service. As a result, we continue to continually develop efficient solutions, such as our generator, which is capable of overcoming the challenges of this growing market”, concludes Büll.

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