结合产水与发电的太阳能烟囱系统特性分析  

Characteristics of a solar chimney with water production and power generation

作　　者：龚廷睿 黄晓明[1] 明廷臻[2] Renaud de_Richter GONG Tingrui HUANG Xiaoming MING Tingzhen Renaud de_Richter(School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China Tour-Solaire.Fr, 8 Impasse des Papillons, F34090 Montpellier, France)

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074 [2]武汉理工大学土木工程与建筑学院,湖北武汉430070 [3]Tour-Solaire.Fr,8 Impasse des Papillons

出　　处：《热力发电》2017年第6期34-39,45,共7页Thermal Power Generation

基　　金：国家自然科学基金(51576077);武汉理工大学自主创新基金(40120237)~~

摘　　要：针对一种可从空气中得到淡水同时还可发电的太阳能烟囱系统,建立了热湿空气在烟囱中沿程冷却析出凝结水并发电的一维可压缩流动与传热数学模型,分析了这种结合发电与产水功能的工程结构的输出性能。结果表明:烟囱高度对凝结水量的影响较大,在一定条件下提高烟囱高度可以获得更多的水;安装在烟囱底部的风力透平功率与水力透平功率之间存在着某种相互制约的关系;随风力透平压降因子的增加,系统总功率先增大后减小,在临界点取得最大值;但当烟囱高度较高时,水力透平的功率不容忽视,系统总功率取得最大值时的风力透平压降因子临界点会减小,表明此时水力透平转换出的电能也较大。A solar chimney system that can produce fresh water from air and generate electricity was proposed. One-dimensional compressible flow and heat transfer model for air condensation and power generation inside the chimney was established to analyze the output performance of this engineering structure which combines water production and power generation. The results show that, the influence of chimney height on condensed water production is relatively large, more water can be obtained by increasing the chimney height under certain conditions. There is some relationship of mutual restraint between the wind turbine output power and the hydraulic turbine output power. With the increasing wind turbine pressure drop factor, the system total power increases first and then decreases. However, when the chimney height changes, the hydraulic turbine output power cannot be ignored, it shows that the wind turbine pressure drop factor corresponding to the maximum system total power reduces, which proves that the hydraulic turbine output power is considerable.

关 键 词：太阳能烟囱 产水 发电 风力透平 水力透平 热气流 凝结水 系统功率 

分 类 号：TK154[动力工程及工程热物理—热能工程]