Low Cost Rain Tunnel Technology

The Rain Tunnel Technology is a highly efficient, low power thus low cost natural process in making drinking water

When the world is busy in conserving every drop of water through various ways fearing scarcity of the natural resource in future, a Bengaluru-based scientist has invented a technology which can produce drinking water from clouds and can extract clean water even from water available in the air around.

"So far we have designed and readied for production of a household 'Rain Tunnel' machine that can produce 30 litres of clean drinking water for a family. This is a standalone plug-and-play machine that can be simply plugged in to any power outlet and you have 24 hours of drinking water. It comes with a built-in dispenser providing chilled water at 8 degrees, hot water at 90 degrees and water at room temperature with cost of only 87 paisa per litre," said Dr Kumar.

Application of Rain Tunnel Technology can range from household drinking water needs to community drinking water, public drinking water, railways, airports, emergency and disaster management, defense application, to name a few. The device is also compatible to renewable energy sources like solar, wind or biomass.

"When used with these, the cost per litre will come down drastically. As a part of our scale-up process, the Rain Tunnel Technology was successfully applied to produce 100, 500 and 1000 litres of water per day. We are in the process of building a 10,000 litre per day Rain Tunnel system, to produce about 3.6 million litres of clean drinking water per annum for a community or even farming. When running with utility supply, the average cost of water will be about 67 paise," he said.

A device in the technology called as Hypersonic Precipitator uses extremely high frequency sound waves in the range of many million cycles per second to produce nano-water particles, smaller than 20 nanometers. The invisible water particles at this nanometer size can freeze at temperatures as high as 10 - 15 degree Centigrade under specific conditions created inside the chamber, that leads to rapid growth of nanometer ice crystals by vapor deposition at the cost of very small amount of water from the cloud that has formed inside the chamber, precipitation starts and raining begins inside the Active Cloud Chamber of the Rain Tunnel. The rain is collected in a food grade tank and treated with a five stage process only when you are ready to drink. Water is never treated and stored as stagnant water can get contaminated.

Source: Money Control

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Taxonomy

• Rainwater Harvesting
• Technology
• Stormwater