SAUDI ARABIA (Kashmir English): Researchers at King Abdullah University of Science and Technology have developed a new cooling system that uses only salt and solar energy to provide cooling without needing any electrical power.
The system provides customers with a sustainable cooling solution that functions as a green replacement for standard air conditioning systems in areas that face both electricity shortages and increasing temperatures.
As global temperatures rise and extreme weather occurrences increase, people need dependable cooling systems more than ever. Researchers emphasized that more than 700 million people worldwide still lack access to electricity, which makes traditional cooling methods unsuitable for many communities.
The demand for economical off-grid solutions has emerged as a solution to this problem. Nescod, which stands for No Electricity and Sustainable Cooling on Demand, operates as a complete cooling system that uses neither electric parts nor compressor systems.
The system functions through the use of ammonium nitrate, which serves as a common ingredient in fertilizers. The compound creates a cooling effect because its dissolved form in water absorbs heat through an endothermic process.
Experimental results showed excellent operational results. The research team discovered that the combination of ammonium nitrate and water produced a temperature reduction from 25°C to 3.6°C within a 20-minute period.
The system achieves high efficiency because it requires only one-fourth of the energy needed by other similar materials, including ammonium chloride.
The system achieves practical benefits because ammonium nitrate exists as an inexpensive material that people can easily obtain and store.
The system can restart itself after cooling because of its capability to function without needing power from outside sources. After the cooling process, solar energy in the system functions as the main powering source, which enables system fans to operate.
