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PCHE (Printed Circuit Heat Exchanger)를 이용한 고온에서의 열 회복을 고려한 2단계 열화학적 수소 생산 방식의 효율 및 경제성 분석
이석용(SeockYong Lee),나웅진(Woongjin Na),이수원(Suwon Lee),정성균(Sungkun Jung),조항진(Hangjin Jo) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
A two-step thermochemical method, which is in the spotlight for its simplicity and ease of scale-up among various hydrogen production methods, was studied. In order to practically consider heat recuperation in high temperature, which has been pointed out as a problem of the method, the efficiency and economic feasibility of the two-step thermochemical method were evaluated considering changing effectiveness of PCHE depending on condition. Based on the in-house code, calculations were carried out for Ceria in two-step separated type reactor. Change in the thermal to hydrogen efficiency was calculated depending on temperature, oxygen partial pressure, effectiveness. The optimized volume and differential pressure were calculated in consideration of economic feasibility. Based on the results, portion of cost for production using Ceria was investigated and further research direction for future commercialization were suggested.