太阳能驱动热化学循环制氢的热力学分析  

Thermodynamic Analysis of Solar-driven Thermochemical Cycle Hydrogen Production

作　　者：刘佩枝 闫秋会[1] 杨亚鑫 冯昭 LIU Pei-zhi;YAN Qiu-hui;YANG Ya-xin;FENG Zhao(School of Building Services Science and Engineering,Xi’an University of Architecture and Technology)

机构地区：[1]西安建筑科技大学建筑设备科学与工程学院

出　　处：《建筑热能通风空调》2021年第10期67-68,38,共3页Building Energy & Environment

基　　金：陕西省科技厅重点研发计划项目(2018SF-355);动力工程多相流国家重点实验室开放基金;西安市碑林区科技计划项目(GX1804)。

摘　　要：本文对太阳能热化学循环制氢过程进行了筛选,最终筛选出了两步和三步热化学循环中较成熟的Fe_(3)O_(4)/FeO循环和S-I循环2种典型过程。继而,计算了以上2种过程的理论能量效率,S-I循环的效率高达84.18%,而Fe_(3)O_(4)/FeO循环的理论能量效率并不高,仅33.78%,并将2种过程的实际效率与各自的理论能量效率进行了比较,为这2种过程能量效率的提高指明方向和限度。Firstly,the processes of solar thermochemical cycle were screened,and two typical processes of the mature Fe_(3)O_(4)/FeO cycle and S-I cycle in the two-step and three-step thermochemical cycle were selected.Then,the theoretical energy efficiency of the above two processes were calculated.The efficiency of the S-I cycle was as high as 84.18%,while the theoretical energy efficiency of the Fe_(3)O_(4)/FeO cycle was not high,only 33.78%.The actual efficiency of the two processes were compared with the respective theoretical energy efficiency to indicate the limitation and direction of energy efficiency improvement of these two processes.

关 键 词：太阳能 热化学循环 氢气 理论能量效率 

分 类 号：TQ116.2[化学工程—无机化工]