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2022-08-04
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The Japanese Agricultural Research Institute has developed a solar water pump for citrus cultivation.

the Japanese agricultural and food industry technology Comprehensive Research Institute announced on August 10 that it has developed a pumping system using photovoltaic power generation. It is envisaged that the image of the refined service housekeeper for oranges on the slope will also be more popular in the orange garden. The power supply of the water tank that pumps water to the high place will be photovoltaic power generation and battery. Pump water into the water tank, and then use the high-low difference hose to the roots of oranges and other citrus. On August 10, the Japanese agricultural and food industry technology Comprehensive Research Institute announced that it had developed a pumping system using photovoltaic power generation. It is envisaged to be used in the citrus orchard on the slope, and the power supply of the water tank pumping water to the high place is photovoltaic power generation and battery. Pump water to the water tank, and then use the height difference to slowly drain water to the roots of oranges and other citrus with a hose

equipment composition of the solar water pump system (source: Comprehensive Research Institute of agriculture and food industry technology)

when using hoses for "drip irrigation" on slopes like this, in the past, trucks were used to transport water to high places, or large pumping facilities were built. It is said that the newly developed solar water pump system can easily ensure that the test result of high horizontal angle converted to Richter value at low cost is the water source at hld757

comparison of continuous operation (upper) and intermittent operation (lower). Intermittent operation can restrain the voltage reduction of the battery if it is required (source: Comprehensive Research Institute of agricultural and food industry technology)

the system is characterized by combining a small-scale photovoltaic power generation system with a small water pump to pump water into a water tank located at a high place for natural pressure irrigation. Because the water is pumped a little when it is not irrigated, it can be irrigated regularly under natural pressure. In addition, in order to restrain the deterioration of the battery, it will operate intermittently by pumping water for 15 minutes and resting for 30 minutes

the standard design example is that 150m pumping pipe is used for 40m drop. When 800L is pumped every day, 12V water pump and two pumps with nominal maximum output power of about 100W (about 6a) are used, such as σ 0.001、 σ 0.01、 σ 0.1 and σ 0.3 solar panels and two 90ah lead-acid batteries are most suitable

agricultural research institutions have made user manuals with simplified steps and easy to understand instructions, which are also open on the station. The system can be used not only for citrus, but also for irrigation of other crops. Therefore, it is said that the photovoltaic power generation in the production area is expected to expand the scope of utilization

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