高原营房太阳能梯级相变跨季蓄能供暖系统研究  

Cross-Season Solar Energy Storage Heating System with Step Change Technology for Plateau Barracks

作　　者：高天飞 韩旭 张华 耿一超 史路阳 GAO Tianfei;HAN Xu;ZHANG Hua;GENG Yichao;SHI Luyang(College of National Defense Engineering,Army Engineering University of PLA,Nanjing 210007,China)

机构地区：[1]陆军工程大学国防工程学院,江苏南京210007

出　　处：《陆军工程大学学报》2024年第3期51-59,共9页Journal of Army Engineering University of PLA

基　　金：江苏省自然科学基金青年基金(BK20221056)。

摘　　要：高原严寒地区气候恶劣,交通运输困难。针对该地区气候特征及室内负荷需求,提出了一套由太阳能、梯级相变蓄能装置以及柴油锅炉辅助热源组成的跨季蓄能复合供暖系统。为探究新型供暖系统的实际性能和可行性,通过模拟软件构建建筑模型及配套的系统模型,根据高原地区的气候条件参数,模拟系统全年运行过程,分析相关运行参数变化,并总结可行的系统设计方法,验证动态气候条件下系统的可行性。结果显示,太阳能集热器的总运行时长可达2000 h以上,为储存充足的太阳热量提供基础。同时相变水箱在蓄能期结束时温度可达82℃,当采用高温水末端散热器时,经过3级相变材料放热后水箱温度降至42℃,导致室内温度难以达到预设值。相较于依赖辅助柴油锅炉维持水箱温度及末端散热器供水温度的方式,低温辐射供暖系统更能适应太阳能梯级相变蓄能系统的热能和水温变化特性。Plateau cold regions are characterized with harsh climate conditions and challenging transportation.According to the climate characteristics and indoor load demands in such regions,a cross-seasonal energy storage compound heating system composed of solar energy,step-change energy storage device and a diesel boiler as auxiliary heat source is proposed.To explore the practical performance and feasibility of this new heating system at a system level,the building and supporting system models were developed with simulation software.The annual operation process of the system was simulated based on Ali region's climatic conditions to analyze the changes in relevant operating parameters to identify the feasible design methods for the system.Furthermore,the feasibility of the system under dynamic climate conditions was verified.Results indicate that the solar collector can operate for more than 2000 hours annually,providing sufficient solar heat storage capacity.Additionally,at the end of the energy storage period,the phase change water tank temperature can reach 82℃.However,when utilizing high-temperature water end radiators with tertiary phase change material heat release causing a drop of water tank temperature to 42℃,it becomes difficult to achieve preset indoor temperatures.The low-temperature radiant heating system is better suited to the thermal energy and water temperature fluctuations of the solar cascade phase change storage system,in comparison to the auxiliary diesel boiler used for maintaining water tank temperature and end radiator water supply temperature.

关 键 词：太阳能供暖系统 跨季蓄能 建筑能耗 高原地区 

分 类 号：TU832.17[建筑科学—供热、供燃气、通风及空调工程]