On October 5th, researchers discovered that huge renewable energy resources are hidden under our noses: The evaporation of water can provide us with a lot of clean electricity. Evaporation is the process by which a liquid changes into a gas, usually when it is heated. Every day, a large amount of water evaporates from lakes and rivers through the heat of the sun, and the scale of this energy is considerable. According to research by Ozgur Sahin and colleagues at Columbia University, evaporation of water from existing lakes in the United States can provide up to 2.85 billion kilowatts of electricity to the United States each year. This is equivalent to 2/3 of the U.S. electricity production in 2015. The research team stated that covering fresh water bodies with generators that collect evaporation energy can halve the loss of water. In seven U.S. states, this method will save more water than the entire state. Sahin said evaporation engineering can also be used in other areas such as irrigation, greenhouses and shelters. But first we must be able to create an evaporation generator. Sahin's team has created several miniature models. All of these prototypes are based on materials that shrink with drying, such as tapes coated with bacterial spores. These spores curl during drying, shortening the tape. Sahin said: "They are like muscles, producing many push-pull forces." In a prototype version, this stretchable material is on the water. When the blinds are closed, the material expands when the moisture rises. Then open the shutters and allow the material to dry and shrink. This similar evaporation generator can work around the clock. Usually there is less evaporation at night, but it can block the evaporation of daytime energy stored in warm water. Sahin said: "You can use this energy at night, which is a huge advantage." Other researchers believe that this potential is huge and the problem is how to use it. Ken Caldeira of the Carnegie Institute of Science in California said: "The question is whether there is any practical way to capture this energy." In addition, the development of steam generators that can be mass-produced is a huge task, with few teams. Explore this area. This technology will also compete directly with solar panels because it will be placed on reservoirs as an increasingly common solar field. Sahin said steam generators can use inexpensive biomaterials that are easier to handle than solar panels. If this technology can really be used on a large scale, it may affect the local climate by reducing evaporation. The research team inferred that if one area of ​​250,000 square kilometers is covered, the climate is only slightly different. On a large scale, all forms of energy generation, including wind and nuclear energy, can affect the weather and climate. In addition, in areas where extreme rainfall is getting worse, reducing the evaporation of water can have some beneficial effects. (passer) 10Mm Slim Pool Light,Underwater Led Swimming Pool Lights,Led Swimming Pool Lights Outdoor Light,Slim Led Lights For Pools Shenzhen Poolux Lighting Co., Ltd. , https://www.pooluxled.com