Heat transfer performance of water-vapor receiver with uneven heat flux in solar power tower plant

CAO Chuanzhao; HAN Linwu; XU Haiwei; LIU Mingyi; PEI Jie

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Heat transfer performance of water-vapor receiver with uneven heat flux in solar power tower plant

Thermal Power Generation Vol. 44, Issue 6, Pages: 72-76(2015)

更新时间：2025-09-28

- Heat transfer performance of water-vapor receiver with uneven heat flux in solar power tower plant
- 作者机构：
  
  中国华能集团清洁能源技术研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM615
- Published：2015
- 稿件说明：
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CAO Chuanzhao, HAN Linwu, XU Haiwei, et al. Heat transfer performance of water-vapor receiver with uneven heat flux in solar power tower plant[J]. Thermal Power Generation, 2015, 44(6): 72-76.
DOI：

CAO Chuanzhao, HAN Linwu, XU Haiwei, et al. Heat transfer performance of water-vapor receiver with uneven heat flux in solar power tower plant[J]. Thermal Power Generation, 2015, 44(6): 72-76. DOI：

摘要

塔式太阳能电站吸热器中的集热管是光热转换的核心组件。集热管面向镜场的半圆周受热

且热流密度沿圆周和轴向不断变化

背向镜场的半圆周绝热

同时集热管内水-蒸汽工质的沸腾流动换热尤为复杂

研究其受热特性有助于深入了解塔式电站吸热器集热管的整体性能。为此

建立了轴向和周向不均匀热流边界条件下水-蒸汽集热管内的数值模型。基于Fluent平台

计算三维、非稳态的汽液两相流动

通过模拟分析呈现了管内的汽液两相流动特性

同时揭示了在这种极不均匀热流条件下

集热管的温度分布规律及其传热特性。

Abstract

Heat collector pipe in receiver of solar thermal power tower plants is a kernel unit to convert solar energy into thermal energy.Only the semi-circumference facing the heliostat field receives heat flux

while the other semi-circumference depart from the heliostat field is adiabatic.What's more

the heat transfer of boiling flow in the pipe with the water-vapor as the working fluid is especially complex.So the understanding of the heat transfer characteristics in it is significant and important.Through Fluent software

numerical model of the water-vapor tube under uneven heat flux boundary with semi-circumference heated and the other semi-circumference adiabatic was established.The three-dimensional and unsteady water-vapor twophase flow was numerically simulated.So

flow characteristics of the two-phase flow were obtained

and temperature distribution and heat transfer characteristics of the tube under uneven heat flux were revealed.

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