The Unha green products development company has recently developed a hydrogen generator based on heavy-pressure water electrolysis which produces high-purity hydrogen with little electricity.
“We placed the focus of research on keeping electrolytic cells airtight and improving the structural safety of electrodes,” said Kim Chang Jin, lead developer and head of a department.
His team developed the heavy-pressure water electrolytic cells and electrodes by way of pressing asbestos on extensive gratings and nickel-plated metal laths. Thus, they could completely seal up the electrolytic cells even in the high pressure of over 5MPa and reduced the size of the device to one twentieth and the power consumption per cubic metre.
They newly designed and manufactured parts of the generator like electrolyte cooler, pressure equalizer and liquid level indicator so as to ensure ease and safety of operation.
They converted the mode of cooling the cells from water circulation to air circulation and made the generator portable.
It can produce 2-10m3 of hydrogen of 99.7 percent purity in an hour under 1-5MPa and costs only one third of the imported ones as it does not use the expensive alkali pump.
The safety of the electrolytic cells is guaranteed by the newly developed diaphragm pressure equalizer using reference pressure setting mode and the water sealer with a check valve.
Respected Comrade Kim Jong Un pays congratulatory visit to Kim Il Sung Military University
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
April 26, 2024
Kim Jong Un, general secretary of the Workers’ Party of Korea and president of the State Affairs of the Democratic People’s
