新型跨季节分区储热水池储/释热性能研究  

Study on Heat Storage/Release Performance of a New Zonal Seasonal Thermal Storage Tank

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作  者:赵宏鹏 刘永旭 姜铁骝[2] 杨光 李盼[2] 胡鹏飞[2] 李琪[2] 刘忠彦[2] ZHAO Hongpeng;LIU Yongxu;JIANG Tieliu;YANG Guang;LI Pan;HU Pengfei;LI Qi;LIU Zhongyan(Northeast Electric Power Design Institute Co.,LTD.Of China Power Engineering Consulting Group,Changchun Jilin 130000;School of Energy and Power Engineering,Northeast Electric Power University,Jilin Jilin 132012)

机构地区:[1]中国电力工程顾问集团东北电力设计院有限公司,吉林长春130000 [2]东北电力大学能源与动力工程学院,吉林吉林132012

出  处:《东北电力大学学报》2024年第5期33-41,共9页Journal of Northeast Electric Power University

基  金:吉林省科技发展计划项目(20210203210SF)。

摘  要:规模化跨季节储热技术能够有效解决新能源供热冬夏热量不平衡的难题。文中提出了一种将储热水体分格储存控制的新型跨季节分区储热水池,运用数值模拟方法对两种不同储/释热模式下储热水池的散热效果和全年热效率进行了计算和对比分析。研究结果表明:两种储/放热模式下,该储热水池都能够保持较高的全年热效率。模式2采用“后储先放”的策略,虽然放弃了各别分区的热效率,但保证了至少一半分区都在较高的热利用率下工作,储热水池整体全年的热效率能达到88.25%。模式1的储热水池全年的热效率为87.55%,虽略差于模式2,但能保证整个供暖季热水的温度的稳定。Large-scale cross-season heat storage technology can effectively solve the problem of winter and summer heat imbalance of new energy heating.In this paper,a new type of zonal seasonal heat storage tank is proposed,and the heat dissipation effect and annual thermal efficiency of the heat storage tank under two different storage/release modes are calculated and compared by numerical simulation.The results show that the heat storage tank can maintain high annual thermal efficiency under both storage and release modes.Mode 2 adopts the strategy of"the last one goes first",although the thermal efficiency of each zone is abandoned,it ensures that at least half of the zones are working under a higher heat utilization rate,and the annual thermal efficiency of the whole heat storage tank can reach 88.25%.Under mode 1,the annual thermal efficiency of the heat storage tank is 87.55%,which is slightly worse than that of mode 2,but it can ensure the stability of the hot water temperature throughout the heating season.

关 键 词:跨季节储热 储热水池 温度场 保温 数值模拟 

分 类 号:TK512[动力工程及工程热物理—热能工程]

 

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