A new technology application has been reported to potentially reduce costs and improve environmental friendliness of refrigerators.
In 2019, domestic refrigerators and freezers accounted for nearly 4% of global electricity consumption. One quote states that simply innovating to decrease power usage is no longer sufficient.
Research from Huazhong Science and Technology University suggests that thermal galvanic technology shows promise as a sustainable cooling alternative to the commonly-used steam compression technology in refrigerators.
According to the findings, “Thermal galvanic cooling offers an environmentally friendly solution with low carbon emissions, potentially contributing to carbon neutrality if widely adopted.”
The research also indicates that this technology can be applied across various sectors, from wearable cooling devices to industrial settings.
Duan mentions, “Thermal galvanic technology is making its way into our lives through efficient electricity or low-power cooling. Both the research and commercial communities should take note.”
Heat galvanic cells generate electricity from thermal energy produced by a chemical reaction. Researchers have found heat galvanic hydrogel that can aid in cooling mobile phone batteries while converting waste heat into electricity.
Optimizing the chemicals in the process has led to a 70% improvement in cooling efficiency of the galvanic cells.
The electricity used to power refrigerators, coupled with gas leaks from refrigeration units, is a significant source of greenhouse gas emissions. In the UK, 50% of refrigeration-related emissions are from electricity usage, with 37% from household refrigerators.
Future research efforts will focus on enhancing system design and exploring additional commercial applications.
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Duan states, “Our advanced electrolytes have commercial potential, but further efforts are needed to enhance design, scalability, and stability for practical implementation of this technology.”
“Moving forward, we aim to enhance heat galvanic cooling performance through new mechanisms and advanced materials, along with developing various refrigerator prototypes for potential applications. Collaborations with companies are being pursued to promote the commercialization of heat galvanic technology.”
Source: www.theguardian.com
