太阳能与地热互补清洁利用系统特性分析  

Characteristic analysis for complementary clean utilization system of solar and geothermal energy

作　　者：耿直 付营剑[1] 姚瑶 曾庆仪 张斌 刘媛媛 李芳 常绪成 顾煜炯 GENG Zhi;FU Yingjian;YAO Yao;ZENG Qingyi;ZHANG Bin;LIU Yuanyuan;LI Fang;CHANG Xucheng;GU Yujiong(School of Aero Engine,Zhengzhou University of Aeronautics,Zhengzhou 450046,China;Huadian Zhengzhou Mechanical Design Institute Company Limited,Zhengzhou 450046,China;Department of Energy and Power Engineering,Tsinghua University,Beijing 100084,China;National Thermal Power Engineering&Technology Research Center,North China Electric Power University,Beijing 102206,China)

机构地区：[1]郑州航空工业管理学院航空发动机学院,河南郑州450046 [2]华电郑州机械设计研究院有限公司,河南郑州450046 [3]清华大学能源与动力工程系,北京100084 [4]华北电力大学国家火力发电工程技术研究中心,北京102206

出　　处：《热力发电》2022年第6期17-24,共8页Thermal Power Generation

基　　金：河南省科技攻关项目(212102210009,212102210026);河南省住房城乡建设科技计划项目(HNJS-2020-K08);河南省高等学校重点科研项目(20A460025);河南省青年人才托举工程项目(2022HYTP021);河南省土木建筑学会科技指导计划项目(202102)。

摘　　要：为了实现太阳能与地热能稳定高效利用,设计了太阳能与地热联合互补利用系统。首先对构成联合互补利用系统的4个子系统进行数学建模,将热功转换系统与热泵机组中导热流体分别选为甲苯和R410A;然后采用EBSILON软件将4个子系统耦合,并设置设计参数,输入郑州某地区供暖季气象参数和地热参数数据,研究太阳能与地热联合互补利用系统的发电与供热等关键指标。模拟研究结果表明:太阳能系统的供热量最低稳定在27.23 kW,且随着太阳辐射量的升高而升高;地热机组的供热量一般在160.26 k W,且进口地热水温度每上升5℃,地热机组的供热量升高6.30 kW,地热机组供热量在太阳能系统供热量上升时有所下降,可与太阳能实现有效互补增加能源利用率,也增大了系统供暖的稳定性。该研究可为太阳能与地热能清洁供热的工程化应用提供一定理论基础。In order to realize stable and efficient utilization of solar energy and geothermal energy,a combined complementary utilization system of solar energy and geothermal energy was designed.Firstly,the mathematical modeling for four subsystems constituting the joint complementary utilization system was carried out,and toluene and R410A were selected as the heat transfer fluids in the heat-power conversion system and the heat pump unit,respectively.Then,the EBSILON software was used to couple the four subsystems as well as to set design parameters.The data of meteorological parameters and geothermal parameters in heating season in a certain area of Zhengzhou were input,and the key indicators such as power generation and heating of the solar and geothermal combined complementary system were studied.The simulation study showed that,the heat supply of the solar system was stable at a minimum of 27.23 kW,and increased with the solar radiation.The heat supply of the geothermal unit was generally 160.26 kW,and the heat supply of the geothermal unit increased by 6.30 kW for every 5 ℃ increase in the temperature of the imported geothermal water.The heat supply of the geothermal unit decreased when the heat supply of the solar system increased,which could effectively complement the solar energy to increase the energy utilization rate and improve the stability of the system heating.This research can provide a theoretical basis for engineering application of solar energy and geothermal energy clean heating.

关 键 词：太阳能 地热 联合互补利用 供热 热功转换系统 热泵机组 数值模拟 

分 类 号：TK114[动力工程及工程热物理—热能工程] TK511