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中文摘要：
本文对太阳能高温电解水蒸气制氢系统进行了设计。该系统以太阳能为唯一的一次能源，采用太阳能分频技术，提供高温电解水蒸气制氢所需的电能和热能。此外，利用余热回收器回收电解产物的余热。热力学分析表明：（1）系统制氢效率可达34．8％；（2）太阳能聚光分频热电联产装置是系统能量和媚损失最大的环节。提高电解温度和降低操作电压可减小电解环节的媚损失。
英文摘要：
In this paper, a new solar hydrogen production system with high temperature steam electrolysis （HTSE） is designed. The system utilizes solar energy as the only prime energy source. Solar concentrating and spectral beam splitting technologies are employed to provide electricity and thermal energy for high temperature steam electrolysis. Additionally, the heat of electrolysis products is recuperated by heat exchanger. Thermodynamic analysis results show that （1） the system hydrogen production efficiency can reach 34.8%, and （2） the solar concentrating and spectral beam splitting device is the principal thermodynamics loss source. It is found that an increase in temperature and decrease in operating voltage can reduce the exergy destruction in the electrolysis cell.
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