相变储能砂浆的制备及其性能  

Preparation and Properties of Phase Change Energy Storage Mortar

作　　者：汪振双[1,2] 赵宁[3] 

机构地区：[1]东北财经大学投资工程管理学院,辽宁大连116025 [2]大连理工大学建筑材料研究所,辽宁大连116024 [3]东北财经大学金融学院,辽宁大连116025

出　　处：《沈阳大学学报（自然科学版）》2014年第4期311-315,共5页Journal of Shenyang University：Natural Science

基　　金："十二五"国家科技支撑计划重大项目(2013BAC05B00);国家自然科学基金资助项目(11226250)

摘　　要：以工业石蜡/膨胀珍珠岩为相变材料制备储能砂浆,并对相变材料掺量10%,20%,30%和40%的储能砂浆稳定性、热物理性能和抗压强度进行研究.结果表明,随着石蜡相变复合材料掺量的增加,相变储能砂浆的导热系数和抗压强度逐渐减小,而比热容和热阻逐渐增大.经过200次相变循环试验,掺量10%,20%和30%的相变储能砂浆试块的质量损失率小于3%,相变储能砂浆表面保持完好,工作热稳定性较好.优化出储能砂浆中相变材料的最佳掺量为20%.Paraffin and perlite were composite as phase change material to produce energy storage mortar, and the stability, thermo-physical properties and compressive strength of the energy storage mortar with the replacement of phase change material 10%,20%, 30% and 40% were investigated. It can be concluded that , with the replace of phase change material increasing, the thermal conductivity and compressive strength of energy storage mortar decreased, while the specific heat capacity and thermal resistance increased, the stability, thermo-physical properties and compressive strength of the energy storage mortar were investigated, and the results indicated that, after 200 recycles of phase change,the mass loss factor of phase change material with replace of 10%,20% and 30% were less than 3%, and the surfaces of the mortar were still in good condition. The efficacy coefficient method was used to optimize the phase change material content of 20%.

关 键 词：相变材料 相变储能砂浆 导热系数 强度 

分 类 号：TU55[建筑科学—建筑技术科学]