February 20, 2024

□ In step with the Korean authorities’s current efforts to attain the purpose of “going carbon impartial by 2050,” the power transition from fossil fuels to new and renewable sources of power has been gaining pace. On this context, the joint analysis workforce 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 methodology as a substitute of a mechanical methodology.

□ In distinction to traditional refrigerants containing HFCs (hydrofluorocarbons) that destroy the ozone layer and trigger world warning, environment-friendly refrigerants (ammonia, R1234yf, and many others.) have very small environmental impacts. In accordance with the Kigali Modification to the Montreal Protocol, superior nations in Europe in addition to the US and Japan are within the strategy of transitioning to eco-friendly refrigerants till the entire phase-out of the usage of HFCs in 2024. Utilizing environment-friendly refrigerants can assist to forestall environmental air pollution and contribute to sustainable improvement.

□ In the meantime, mechanical compressors have a number of limitations equivalent to issues with sturdiness of components attributable to speedy rotation, contamination of refrigerants brought on by lubricants, and loud noise. As electrochemical compressors haven’t any transferring components and don’t require the usage of lubricants, they can assist to beat the shortcomings of typical mechanical compressors. Moreover, a continuing circulate price might be supplied at numerous strain ratios with electrochemical compressors, and the excessive effectivity thereof can assist to considerably improve the COP (coefficient of efficiency) of the warmth pump.

□ To maximise the energy-saving impact of the rooftop greenhouse, the analysis workforce developed a “optimized good farm working answer” able to controlling each side of the system equivalent to air con, LED, and hydroponics system in accordance with exterior climate circumstances, and plans to display this answer via the demonstrated rooftop greenhouse.

□ The joint analysis workforce has secured the core applied sciences essential 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 circulate price and strain might be obtained by stacking.

□ In contrast to 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 service fuel. Moreover, it additionally permits for isothermal compression by making use of a multi-layer freezing know-how the place cells are amassed in a stack configuration. So far, the refrigerants which were efficiently compressed are ammonia, a pure refrigerant, and R1234yf, an eco-friendly refrigerant. The joint analysis workforce designed cells able to working solidly even underneath repeated high-pressure circumstances 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 workforce 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 steady circulate price in accordance with the compression ratio, and has glorious effectivity. Due to this fact, it may be used not just for developing high-efficiency crops and warmth pumps but in addition for constructing small-scale programs. Particularly, as an electrochemical ammonia compressor can be utilized for compressing ammonia even when the ammonia acts as a hydrogen service, it will also 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 know-how to contribute to the achievement of the purpose of going carbon impartial by 2050.”

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


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 challenge for the “improvement of a chemical absorption-type warmth pump utilizing an electrochemical compressor” led by the Korea Institute of Power Expertise Analysis and Planning of the Ministry of Commerce, Trade and Power.

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