甘肃河西地区日光温室蓄热墙体供热系统耦合传热机理及其墙体优化

项目名称： 甘肃河西地区日光温室蓄热墙体供热系统耦合传热机理及其墙体优化

项目编号： No.51468028

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 建筑科学

项目作者： 管勇

作者单位： 兰州交通大学

项目金额： 48万元

中文摘要： 西部惠农政策的实施和设施农业结构的调整升级推进了甘肃河西地区日光温室产业快速发展，但传统土墙结构温室的弊端也逐渐暴漏出来，影响了作物的高效生产。因此，迫切需要改进日光温室建造理念与设计方法，采用高性能集热设备与墙体蓄热材料、构筑新型结构墙体以提高太阳能及土地利用率、提升日光温室对热环境的调控能力。 本项目以河西地区日光温室为研究对象，提出新型日光温室主被动协同蓄热墙体供热系统。采用理论分析、实验测试与数值分析相结合的方法拟开展以下工作：1)日光温室聚光型空气集热系统热性能研究；2)主被动协同蓄热墙体蓄放热系统研究；3)蓄热墙体供热系统热工性能评价方法研究；4)蓄热墙体结构参数优化方法研究。目标是揭示主被动协同蓄热墙体供热系统耦合传热机理，获得主被动协同蓄热墙体供热系统热工性能评价方法及其墙体优化方法。以期形成一套指导河西地区新型日光温室主被动协同蓄热墙体供热系统设计建造的理论和技术方法。

中文关键词： 日光温室；协同蓄热墙体；耦合传热机理；评价方法；墙体优化

英文摘要： With the implementation of the preferential agricultural policies and the structural adjustment of protected agriculture, the solar greenhouse industry has been developed rapidly in Hexi Corridor in Gansu province. However, the disadvantages of traditional greenhouse wall structure have been exposed gradually and affected the high-efficient production of the greenhouse crops. Therefore, the building concepts and design methods for solar greenhouse are urgently needed to be improved. Using the high-performance concentrating collector devices and the thermal-storage wall material, and building the new wall structure to improve the utilization rate of solar energy and land, and to further promote the control ability for greenhouse thermal environment. In this project, the solar greenhouse in Hexi Corridor was taken as the research object and the new heating system of the wall with active-passive collaborative thermal-storage modes for solar greenhouse has been proposed. Thus, equipped with theoretical analysis, numerical and experimental methods, the project will try to investigate: 1) thermal performances of the air collector system applied in solar greenhouse; 2) the heat charge/discharge processes of the wall with active-passive collaborative thermal-storage modes; 3) the evaluation methods of thermal performance of the proposed heating system; 4) the optimization methods of the wall structure. The following results are expected to be obtained: revealing the coupled heat-transfer mechanisms of the new heating system of the wall with active-passive collaborative thermal-storage modes; obtaining the evaluation methods of thermal performance of the proposed heating system and the optimization methods of the wall structure. To form a set of theory and technical method for guiding design and construction of the proposed heating system of the wall with active-passive collaborative thermal-storage modes for solar greenhouse in Hexi Corridor. Therefore，to carry out this project has not only great academic significance, but also high application values.

英文关键词： solar greenhouses;collaborative thermal-storage wall;coupled heat-transfer mechanism;evluation method;wall optimization