March 4, 2024

□ In step with the Korean authorities’s latest efforts to attain the objective of “going carbon impartial by 2050,” the power transition from fossil fuels to new and renewable sources of power has been gaining velocity. On this context, the joint analysis group led by Principal Researcher Younger Kim of the Korea Institute of Equipment and Supplies (KIMM), an institute underneath the jurisdiction of the Ministry of Science and ICT, and professors Min-sung Kim and Dong-kyu Kim of Chung-Ang College has efficiently developed an environment-friendly refrigerant compressor utilizing an electrochemical technique as a substitute of a mechanical technique.

□ In distinction to traditional refrigerants containing HFCs (hydrofluorocarbons) that destroy the ozone layer and trigger international warning, environment-friendly refrigerants (ammonia, R1234yf, and so forth.) have very small environmental impacts. In accordance with the Kigali Modification to the Montreal Protocol, superior nations in Europe in addition to america and Japan are within the technique of transitioning to eco-friendly refrigerants till the entire phase-out of using HFCs in 2024. Utilizing environment-friendly refrigerants might help to forestall environmental air pollution and contribute to sustainable improvement.

□ In the meantime, mechanical compressors have a number of limitations resembling issues with sturdiness of elements on account of fast rotation, contamination of refrigerants brought on by lubricants, and loud noise. As electrochemical compressors don’t have any transferring elements and don’t require using lubricants, they might help to beat the shortcomings of typical mechanical compressors. Moreover, a relentless stream price will be supplied at varied strain ratios with electrochemical compressors, and the excessive effectivity thereof might help to considerably improve the COP (coefficient of efficiency) of the warmth pump.

□ To maximise the energy-saving impact of the rooftop greenhouse, the analysis group developed a “optimized sensible farm working resolution” able to controlling each facet of the system resembling air-con, LED, and hydroponics system in accordance with exterior climate situations, and plans to show this resolution via the demonstrated rooftop greenhouse.

□ The joint analysis group has secured the core applied sciences vital for producing the environment-friendly electrochemical refrigerant compressor and for designing the system thereof, and has efficiently applied the check run. With the newly developed environment-friendly electrochemical refrigerant compressor, the specified stream price and strain will be obtained by stacking.

□ Not like typical mechanical compressing, an electrochemical compressor compresses refrigerants via the motion of ions by charging the ion trade membrane with DC (direct present) voltage, whereas utilizing hydrogen because the provider fuel. Moreover, it additionally permits for isothermal compression by making use of a multi-layer freezing expertise the place cells are collected in a stack configuration. Up to now, the refrigerants which have been efficiently compressed are ammonia, a pure refrigerant, and R1234yf, an eco-friendly refrigerant. The joint analysis group designed cells able to working solidly even underneath repeated high-pressure situations and likewise demonstrated a leak-free design to forestall the leakage of refrigerants at excessive strain. Furthermore, by designing a channel able to producing excessive efficiency even at excessive voltage, the joint analysis group has succeeded in maximizing the compression effectivity of the electrochemical compressor.

□ The electrochemical compressor is able to providing the specified compression ratio whatever the dimension thereof, and might present a secure stream price in accordance with the compression ratio, and has glorious effectivity. Subsequently, it may be used not just for developing high-efficiency vegetation and warmth pumps but in addition for constructing small-scale techniques. Particularly, as an electrochemical ammonia compressor can be utilized for compressing ammonia even when the ammonia acts as a hydrogen provider, it can be used for developing hydrogen infrastructure.

□ Dr. Younger Kim of the KIMM’s Division of Thermal Power Options was quoted as saying, “The eco-friendly electrochemical refrigerant compressor is very environment friendly and requires a small footprint, which makes it economically enticing.” Dr. Kim added, “We’re planning to develop a warmth pump system utilizing this expertise to contribute to the achievement of the objective of going carbon impartial by 2050.”

□ In the meantime, this analysis was performed with the help of the mission for the “improvement of a chemical absorption-type warmth pump utilizing an electrochemical compressor” led by the Korea Institute of Power Know-how Analysis and Planning of the Ministry of Commerce, Business and Power.

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The Korea Institute of Equipment and Supplies (KIMM) is a non-profit government-funded analysis institute underneath the Ministry of Science and ICT. Since its basis in 1976, KIMM is contributing to financial development of the nation by performing R&D on key applied sciences in equipment and supplies, conducting reliability check analysis, and commercializing the developed merchandise and applied sciences.

This analysis was performed with the help of the mission for the “improvement of a chemical absorption-type warmth pump utilizing an electrochemical compressor” led by the Korea Institute of Power Know-how Analysis and Planning of the Ministry of Commerce, Business and Power.

Credit score : Korea Institute of Equipment and Supplies (KIMM)Utilization Restrictions of Multimedia (Attachment File): The sources of photographs and analysis resultsfrom KIMM have to be specified.