摘要
利用冬季自然冷源实现跨季节冰蓄冷对于节省夏季空调能耗具有重要价值。本文建立了内蓄冰圆筒装置的传热数学模型,通过离散和迭代进行求解,分析了沈阳市在装置的不同容积和初始温度下,蓄冰时间和蓄冰量的关系;通过拟合得到的幂函数,可计算出在最冷月内完成蓄冰的装置最佳容积为内外径之差0.77 m;选取了其他5个东北城市,分别得出室外温度和风速对蓄冰过程的影响程度,以期对实际设计和应用区域的选定起到一定的理论支撑作用。
It is of great value for energy consumption savings in summer air conditioning by utilizing the natural cold source in winter to achieve trans-seasonal storage of ice.In this paper,the mathematical model for heat transfer in the internal ice storage cylinder was established.The relationship between the ice storage time and ice thickness was analyzed through solution by discretization and iteration in different volumes and at initial temperatures of the device in Shenyang.Through the power function obtained by fitting,the optimal difference between inside and outside diameters of ice storage device in the coldest month can be calculated,which is 0.77 m;Other five northeast cities were selected to compare the effects of outdoor temperature and wind speed on the ice storage process with a view to providing certain theoretical support for the actual design of the device and the selection of the application area.
作者
李艺群
黄凯良
关敬轩
张雪萍
孙晓宇
Li Yiqun;Huang Kailiang;Guan Jingxuan;Zhang Xueping;Sun Xiaoyu(Shenyang Jianzhu University,Shenyang 110168,China;China Northeast Architectural Design&Research Institute,Shenyang 110003,China)
出处
《流体机械》
CSCD
北大核心
2020年第1期77-82,共6页
Fluid Machinery
基金
国家级大学生创新创业训练计划项目(201810183030)
沈阳建筑大学基础学科基金项目(CXPY2017007)
沈阳市中青年科技创新人才支持计划项目(SHSCXRC2017003)
关键词
跨季节冰蓄冷
焓法
数值模拟
东北地区
seasonal storage of ice
enthalpy method
numerical simulation
northeast area
