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中文摘要：
为实现给水加热型互补发电系统中太阳岛与动力岛更好耦合,本文建立了槽式集热器炯效率的热力学模型,分析了200 kW典型集热器效率随运行参数的变化规律：平均辐照600 W/m~2时最大效率为33%左右,最佳温度范围为250～350℃,并进行了实验验证,最后分析了互补发电系统集热场效率在设计辐照和偏离设计辐照时的特性规律,初步给出了热互补电站设计的原则。本研究结果为太阳能与火电互补发电技术的集热场设计提供了一个基本依据,具有较好的工程实用价值。
英文摘要：
To make the power generating subsystem and solar field subsystem in the hybrid power generating system with solar feed water heaters to match better,a thermodynamic model of the solar field exergy efficiency was established in this paper.The highest exergy efficiency was 33%and the best operating temperature range was 250～350℃for the typical 200 kW parabolic trough solar field with the average DNI of 600 W/m~2.Test was also done to verify the simulation results.Finally the solar field exergy efficiency of the hybrid system was studied with DNI at and off the design points and thus the preliminary design principles of the solar thermal hybrid plant were proposed.The results would be useful to design the solar field of the hybrid system and have an application value in engineering.
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