DNI 扰动条件下太阳能甲醇分解反应器的流量调控策略分析

The performance of solar thermochemical reactor under actual operation is affected by DNI fluctuations. In this paper, the influences of different flow control strategies on methanol conversion rate, outlet temperature and solar-chemical energy conversion efficiency under DNI disturbance are studied. The optimal flow rate control strategy satisfying the temperature limit of the catalytic bed with high methanol conversion rate. Taking DNI step decrease from 800 to 400 W·m⁻² as example, when the flow rate step changes to the target value, the temperature of the catalytic bed increases to 598 K, exceeding the operating safe temperature limit. When the flow rate ramp decreases to the target value within 60 s, the methanol conversion rate reaches the highest value within the permissible range of temperature, which is the optimal flow rate regulation strategy.