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The Cooling Technology of Refrigerators Has Changed Little Since the 1950s, But Scientists Have Developed an Innovation That Could Transform the Future of Cooling!
The search for sustainable energy solutions has been a global priority, especially in sectors that require high electricity consumption, such as refrigeration through refrigerators.
Recently, researchers published an important advance in this area in the journal Joule: thermogalvanic refrigeration.
This technology, based on reversible electrochemical reactions, promises to offer a more efficient and eco-friendly method of cooling refrigerators. But how does this innovation work and what are its potential impacts?
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What Is Thermogalvanic Refrigeration?
Thermogalvanic cells are devices that use heat generated by electrochemical reactions to produce electricity.
However, scientists from Huazhong University of Science and Technology in China demonstrated that the process can also be reversed.
That is, by applying an external electric current, these reactions can absorb heat from the environment, generating a cooling effect.
According to Jiangjiang Duan, the senior author of the study, “thermogalvanic technology is on its way into our lives, whether in the form of clean electricity or low-consumption cooling, and both research and commercial communities should pay attention.”
Benefits and Potential of the Technology
Thermogalvanic refrigeration stands out for several advantages compared to traditional systems:
- Lower Energy Consumption: Unlike conventional refrigerators that require compressors and refrigerant fluids, this technology consumes less electricity, reducing operational costs.
- Sustainability: The method eliminates the need for environmentally harmful refrigerant gases, contributing to a reduction in carbon footprint.
- High Scalability: It can be applied in portable devices, such as refrigerated clothing, to large-scale industrial systems.
Advances and Improvements in the Process
Previous studies indicated that thermogalvanic cells had limited performance in cooling energy production.
However, Duan’s team was able to optimize the components of the technology, significantly increasing its efficiency.
The key to this improvement lies in the composition of the electrolyte. Researchers used a hydrated iron salt containing perchlorate, which enhances the dissolution of iron ions.
Additionally, they replaced pure water with a solvent containing nitriles, raising the cooling capacity of the system by 70%.
The adjusted system was able to cool the electrolyte solution by 1.42 K, a significant advancement compared to the cooling capacity of 0.1 K of previous systems.
The Future of Refrigerators
With the recorded advances, the team is now dedicated to increasing the scalability and stability of the system to make it commercially viable. This includes improvements in system design and exploring new materials.
The next step involves developing refrigerator prototypes for various applications, from portable devices for heat relief to industrial systems. Additionally, researchers are seeking collaborations with innovative companies to accelerate the commercialization of the technology.
Thermogalvanic refrigeration represents a promising technological leap in the search for sustainable cooling solutions.
Its potential to reduce energy consumption and eliminate negative environmental impacts makes it a viable alternative for various applications.
With new research and investments, this technology could transform the refrigeration and clean energy market in the coming years. It remains to be seen how the upcoming advances will unfold and hope that soon these innovative systems will be part of our daily lives.
With information from Cell Press.
Boa coisa né o gás da geladeira que refrigera é bastante nocivo para a camada de ozônio, com esse método novo não apresenta risco de ser nocivo