相变调温板材自调温效果研究  

STUDY ON THERMOREGULATION EFFECT OF PHASE TRANSITION TEMPERATURE-ADJUSTING BOARDS

作　　者：李建立[1] 薛平[1] 丁文赢[1] 韩晋民[2] 孙国林[2] 

机构地区：[1]北京化工大学塑料工程研究所,北京100029 [2]北京巨龙博方科学技术研究院,北京100031

出　　处：《太阳能学报》2009年第7期921-927,共7页Acta Energiae Solaris Sinica

摘　　要：提出了一种新的相变调温板材用于室温调节的组合方案,即用相变区间为16～24℃的调温板作地板,用相变区间为24～32℃的调温板作天花板。基于有效热容法,建立了描述室内热环境的一维非稳态传热模型,用全隐式有限差分法模拟了调温地板/天花板这种组合方式的调温效果。结果表明:在北京地区典型气象年的不同季节,相变调温地板和天花板均能减小室温波幅,在夏季能降低最高室温,在冬季能提高最低室温,改善了室内热环境。当室内自然通风或定时通风换气时,调温地板/天花板的组合方式节能效果不明显。A novel mode of applying a phase transition temperature-adjusting board （PTTAB） with a phase transition temperature range of 16 - 24℃ as floor and a PTYAB with that of 24 - 32℃ as ceiling was proposed. One-dimensional unsteady state heat transfer model based on effective heat capacity method was built to describe indoor thermal environment. The implicit finite difference method was employed to simulate the dynamic temperature field of one separate room with phase transition temperature-adjusting floor and ceiling boards （PTTAF and PTTAC）. The results show that PTTAF and PTTAC can reduce the amplitude of room temperature in various seasons of typical meteorologic year, decrease maximum room temperature in summer and increase minimum one in winter. The mode is effective to improve indoor thermal environment amenity, however it is ineffective to energy saving when a natural or timing ventilation scheme is applied.

关 键 词：相变调温地板 相变调温天花板 室内热环境 调温效果 

分 类 号：TK512.4[动力工程及工程热物理—热能工程]