http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
홍성덕(Sung Deok Hong),김신엽(Sin Yeob Kim),강경준(Kyung Jun Kang),박병하,김찬수(Chan Soo Kim),Hong Sik Lim 대한기계학회 2023 대한기계학회 춘추학술대회 Vol.2023 No.11
Hydrogen production efficiency using High Temperature Steam Electrolysis (HTSE) improves as the temperature of the supplied steam increases. A Lab-scale HTSE system is now under constructing at the Korea Atomic Energy Research Institute. An experiment facility to generate high-temperature steam of 820℃ is designed and constructed for 30㎾ HTSE using solid-oxide electrolyte cell stacks. The experiment facility equipped a 77㎾ heating system to heat the helium up to 950℃, and a Multi-stream heat exchanger (MHX) is designed and manufactured to heat the steam and air up to 800℃ with the heated helium. To control the mass flow rate and pressure of superheated steam into the MHX, shell and helical-tube type steam generator with core tank is separately designed. Pressurized pure water at a constant flow rate is injected into the shell side of the steam generator, and helium from the MHX passes through the tube side of steam generator. In this study, the stable generation of both superheated steam of 15.4 ㎏/hr at 805℃ and air of 11.5 ㎏/hr at 761℃ are tested through the helium heated steam/air supply system.