新型塔式太阳能热板吸热器性能研究  

SRUCTURE OPTIMIZATION AND RESEARCH FOR THERMODYNAMIC PROPERTIES OF A NEW PLATE HEAT PIPE RECEIVER USED IN SOLAR TOWER POWER PLANT

作　　者：杨琳[1] 彭浩[1] 凌祥[1] 

机构地区：[1]南京工业大学机械与动力工程学院江苏省过程强化与新能源装备技术重点实验室,南京211816

出　　处：《太阳能学报》2015年第11期2667-2673,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51176071);中欧中小企业节能减排科研合作资金(SQ2012Z0C100006);国家科技支撑计划(2012BAA07B02)

摘　　要：提出一种用于塔式太阳能热发电的新型热板吸热器结构,该结构由热板侧与板翅通道侧组成。采用正交实验方法结合有限元方法优化热板侧的支撑结构;建立板翅通道侧的计算流体动力学(CFD)模型,分析不同类型翅片及结构参数对其热力性能的影响。结果表明:较优的热板侧支撑结构为16根外直径为10 mm,内直径为5 mm的支撑杆,此时热板最大热应力为10.02 MPa(800℃)。同时,板翅通道侧采用锯齿翅片可有效地提高吸热器的传热性能,实现强化传热。This paper proposed a new finned plate heat pipe receiver used in solar tower power （STP）plant, which consists of a flat plate heat pipe side and finned channel. By using the orthogonal design method combined with the finite element analyses, the structure of flat plate heat pipe was optimized. A computational fluid dynamics （CFD）model of plate-fin channel was established to analyze the impact of different types of fins and their structure parameters on thermal performance. The results showed that, 16 bars with outer diameter of 10 mm and inner diameter of 5 mm are the optimal parameters with the thermal stress of 10.02 MPa（800 ℃）. Serrated fin can improve the performance for developing plate heat pipe receiver.

关 键 词：太阳能 热板吸热器 热应力 锯齿翅片 强化传热 

分 类 号：TK513.3[动力工程及工程热物理—热能工程]