A group of scientists, led by Professor Emre Gençer from Massachusetts Institute of Technology in the USA, developed a model where you can obtain fresh water from sea water by utilizing solar energy. Solar energy, which is one of the most abundant resources in the world.
Gençer who expressed that fresh water, electricity, and hydrogen can be produced by using seawater and solar energy, which are one of the most abundant resources in the world, told that countries, which are rich in terms of the solar energy but lack fresh drinking water, were their source of inspiration during this study.
HERE IS THE PROCESS
Gençer, who expressed that they tried to benefit from the solar energy as much as they can, said, “First, we evaporate the water with the help of the solar energy system. Then we generate electricity by sending this steam to the steam turbines. After the electricity generation process, the steam, which loses heat, is directed to thermal purification system and it is used to heat the sea water. In this stage, some portion of the sea water is evaporated and fresh water is achieved. The obtained fresh water will be delivered from the system, which will be ready to be used for different purposes.”
IT DOESN’T RELEASE CARBON DIOXIDE
Gençer also stated that the steam created after the electricity generation is used for the hydrogen generation and said, “This hydrogen is stored. The stored hydrogen is burned about 19 hours in order to provide the required energy for the electricity generation and water purification in the absence of solar energy. Unlike to fossil fuels, hydrogen creates steam when burned and no carbon dioxide is released”
ELECTRICITY AND WATER NEED OF A SMALL CITY CAN BE MET
Gençer expressed that areas, which are poor in terms of the fossil sources, can meet their needs with this system and also said, Electricity, drinking water, domestic water and agricultural water needs can be met with the model we have developed. The electricity and water production can continue even the lack of sun with the system we proposed thanks to the hydrogen production and storage.
Gençer also told that the model is not suitable for personal or domestic use but created for large-scale practices, and added: “Such a system can meet the electricity and water needs of a small city”.
Gençer emphasized that fresh drinking water need in the Middle East and North Africa is met by the fossil-fueled water purification plants and noted that if these efforts will be carried out with renewable energy resources then the carbon dioxide emissions would decline seriously.