Rice engineers develop a resonating energy system for more efficient disabling on solar energy
Rice University researchers have introduced a new desalination technology that has been designed to improve the efficiency and adaptability of water treatment on solar energy. The new system, described in a study published in Nature Water, uses a resonating energy transmission approach that overcomes the intermittency of sunlight, a common limitation in conventional solar dismantling systems.
In contrast to traditional desalination systems that depend on fragile filtration membranes and centralized infrastructure, the thermal resonating energy exchange system of the Rice Team Desalinization (Stred) uses a streamlined, membrane-free design. This innovative approach lays and reused thermal energy in a self -sufficient cycle, which makes continuous freshwater production possible, even when sunlight is intermittent.
The Street system works by coordinating the flow rings of heated saline and air to create a resonating thermal exchange, similar to how energy oscillates between magnetic and electric fields in an electric circuit. With this method, the system can efficiently restore and transfer heat, which considerably reduces energy loss and maintenance needs.
“Our most important innovation is the use of insights of electrical engineering and the physics of Oscillators to inform the adaptation of the internal flow speeds of the system to match the changing power of the sun during the day,” says William Schmid, a doctoral student in Electric and National Science Fullate. “This light -dependent power control has never been done before.”
Aleida Machorrorortiz, a graduate student in Rice’s Applied Physics Graduate Program and a co-leading author in the study, emphasized the sustainability of the system. “The system works robust and with minimal maintenance around the clock,” she said.
The prototype, tested in San Marcos, Texas, produced up to 0.75 liters of drinking water per hour and showed a 77% higher water recovery efficiency compared to conventional systems when they were tested with the help of various solar intensity profiles from regions in the United States. These performance indicate that the system can achieve high energy-to-water efficiency without trusting peak-sun conditions, making it suitable for a wide range of climates.
The simplicity of the design is another advantage. Instead of using membranes, the stream system uses a single heated channel of salt water combined with an adjacent air duct that captures evaporated water vapor. This vapor then condenses in a heat exchanger and separates pure water from contamination without the risk of membrane pollution.
“We were deliberately in the use of sustainable, low -maintenance materials to make the system easily scalable and accessible,” Alessandro Alabastri, assistant professor of electric and computer technology to Rice and a corresponding author in the study.
The other co-authors of the study are Naomi Halas, university professor and the Stanley C. Moore professor of electric and computer technology; Qian Ye, a student Rice Graduate; Pratiksha Dongare, former rice faculty and senior physicist at SLB; and Peter Nordlander, Wiess Chair in Physics and Astronomy at Rice.
Research report:Resonating energy transfer for membrane-free, off-grid solar-thermal humidification-de-de-stitching deserting
