制冷学报Issue(1)：70-76,7.DOI:10.3969/j.issn.0253-4339.2016.01.070
纳米二氧化钛-赤藻糖醇储能体系实验研究
Experimental Research on Nanotitanium-erythritol Energy Storage System
摘要
Abstract
Erythritol with transformation temperature of 119 ℃ has huge potential in application according to temperature range of mobile heating, but it is also limited by its disadvantage of low thermal conductivity, unstable heat releasing, bigger supercooling. Nanometer ma-terials as nucleating agents were putted into erythritol in order to improve its thermal properties, and the composite can be used as phase change materials ( PCMs) . The properties of nanotitanium-erythritol with different mass ratio have be gained by time-temperature curve, differential scanning calorimetry ( DSC) ,thermal conductivity test and other properties testing. The results show that nanometer materials can decrease the supercooling of erythritol in a large degree, and it can also increase its thermal conductivity in small extent;nanometer ti-tania can decrease the composite's coefficient of cubical expansion, and the composite′s density will fluctuate over a little range with 0. 02-0. 08 g/cm3;nanometer titania of 0. 1% mass ratio has a drop of 37. 91 percent in erythritol's supecooling, 1. 09 percent in its latent heat and a growth of 3. 67 times in solid thermal conductivity.关键词
储能技术/赤藻糖醇/纳米复合材料/热物理性能Key words
energy storage technology/erythritol/nano-PCMs/thermal property分类
通用工业技术引用本文复制引用
章学来,丁锦宏,罗孝学,徐蔚雯..纳米二氧化钛-赤藻糖醇储能体系实验研究[J].制冷学报,2016,(1):70-76,7.基金项目
本文受上海市教委重点项目(12ZZ154)和上海海事大学研究生创新基金资助项目( YXR2015135)资助。( The project was supported by the Project of Shanghai Municipal Education Commission (No.12ZZ154) and the Graduate Innovation Fund of Shanghai Maritime University (No. YXR2015135).) （12ZZ154）
