{"id":2710,"date":"2018-06-05T19:57:15","date_gmt":"2018-06-05T17:57:15","guid":{"rendered":"https:\/\/solar-dripper.com\/?p=2710"},"modified":"2025-08-20T13:04:32","modified_gmt":"2025-08-20T11:04:32","slug":"drip-irrigation-efficiency","status":"publish","type":"post","link":"https:\/\/solar-dripper.com\/en\/drip-irrigation-efficiency\/","title":{"rendered":"Drip irrigation efficiency"},"content":{"rendered":"

Drip irrigation efficiency and water saving<\/h1>
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Drip irrigation efficiency is an increasingly important topic.<\/span><\/span> Climate changes expose us to drought even in countries where rainfall is regular.<\/span><\/span>\u00a0 To improve drip irrigation efficiency, we have to identify and quantify each source of losses between water input and the water captured by the plant’s roots<\/span><\/span>.<\/p>\n

We must not be content with virtuous intentions or fake quality labels, but make verifiable engineering tests and measurements.<\/span><\/span><\/p>\n

Here’s how to achieve the highest level of watering efficiency of 99% with the ORIAZ Solar-Dripper.<\/span><\/span>\u00a0Efficiency is defined as the % of water actually used by the plant in proportion to the water volume at the start of the system. We measured evaporation loss at less than 1%.<\/span><\/span>
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The Solar-Dripper uses the patented Cossette Thermodynamic Regulator providing the maximum drip irrigation efficiency<\/strong>.<\/p>\n

Watering maintained during cloudy weather> already about 30% loss<\/span><\/span><\/h3>\n

This loss due to lack of flow modulation is the first problem of automatic watering systems using simple timers, porous cones or gravity diffusers in a continuous mode like a perfusion.<\/span><\/span> If the watering flow is not modulated, the watering system will lose about 30% water with unwanted watering during cloudy days.<\/span><\/span>\u00a0 A 24-hour continuous drip irrigation mode can even affect the plant’s health by causing root rot due to asphyxia.<\/span><\/span><\/p>\n

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The ORIAZ Solar-Dripper \u00a9 has a built-in solar modulation to follow plant’s needs.\u00a0 This graph shows the hourly flow rate measurement in ml \/ h and the hourly water requirements (ET: evapotranspiration) measured by a professional weather station. <\/span><\/div>\n
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This unique R&D experience with the ORIAZ Solar-Dripper \u00a9 was first performed in Annecy and repeated in Switzerland.<\/a>
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The Solar-Dripper reacts to temperature cycles with a variable flow from 0 to 200 ml per hour.<\/div>\n
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This is impossible with conventional drippers with constant rates of 500 ml to 8L per hour. We have experimentally succeeded on orchids average watering rates of less than 0.5 ml\/h.<\/span><\/span><\/span><\/div>\n
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The Cossette Regulator adaptive flow rates are about 10 to 1000 times lower than conventional drippers’ capability.<\/div>\n
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This flow reduction reduces saturation, improves oxygenation and reduces percolation loss. Conventional drippers cannot go down to these ultra-low flow rates ( less than 500 ml \/ h) due to the clogging problems, which worsen exponentially with the restriction required for lower flow.<\/span><\/span><\/span><\/div>\n
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Conventional drippers need an electric controller system to adapt the watering durations. The Solar Dripper has this feature built in.<\/div>\n
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