高氯酸掺杂聚苯胺对电容器性能的影响

以苯胺为主要原料，过硫酸铵为氧化剂，利用高氯酸和四氯化碳的两相界面，通过界面聚合法合成高氯酸掺杂聚苯胺。以所合成的聚苯胺为活性物质制备电极，以活性炭材料为对电极，1mol／LH2804溶液为电解液，分别组装对称及非对称电容器PAN-PAN、AC_PAN及ADAC，并采用·巨流充放电、循环伏安和交流阻抗技术研究了它们的电化学性能。结果显示，聚苯胺材料作正极材料时，140mA／g充放电电流密度下材料的比电容达270F／g，循环性能良好；聚苯胺材料作负极材料时，电容器在高电压范围的可逆性变差，容量变小。研究表明，高氯酸掺杂聚苯胺是一种很有发展前景的超级电容器正极材料

Design and Running Economic Analysis of an Air Conditioning System with Water Cold Storage

介绍了一种应用于广东地区某大型工业厂房工艺用冷的水蓄冷空调系统的设计方法。该工程竣工后,根据实际运行数据进行了详细的经济性分析计算,结果表明：相比常规空调水蓄冷空调系统的月节费率为34.8%~78.2%,总平均节费率为65.1%,实际运行4个月为企业节省用电费用74.3万元

Preparation of a phase change material using palm oil

以棕榈油为原料经酯交换反应制得饱和脂肪酸甲酯,再与十六醇按质量比10∶1制成复合相变材料,其熔点Tm26.9℃,相变潜热212.5 J/g。该材料应用到建筑围护结构中,适用于南方地区,利用围护结构吸收和储存白天进入室内的太阳辐射热,夜间时释放能量,减少室内温度波动,提高室内热舒适性,降低采暖或制冷能耗,降低建筑能耗

一种以棕榈油为原料的相变材料的制备方法

以棕榈油为原料经酯交换反应制得饱和脂肪酸甲酯,再与十六醇按质量比10∶1制成复合相变材料,其熔点Tm26.9℃,相变潜热212.5 J/g。该材料应用到建筑围护结构中,适用于南方地区,利用围护结构吸收和储存白天进入室内的太阳辐射热,夜间时释放能量,减少室内温度波动,提高室内热舒适性,降低采暖或制冷能耗,降低建筑能耗

Methyl Palmitate/Methyl Stearate Building Energy Saving Phase Change Material

本文研究一种适用于夏热冬暖地区建筑围护结构的相变材料,该材料为棕榈酸甲酯和硬脂酸甲酯按一定比例混合而成,通过DSC检测相变温度及相变潜热,分析棕榈酸甲酯和硬脂酸甲酯不同比例时相变材料的性能。棕榈酸甲酯和硬脂酸甲酯质量比为4∶1时,相变材料的熔融温度为22.4℃、熔化潜热为188.7J/g,该相变材料综合性能最佳,相变温度符合夏热冬暖地区建筑围护结构使用要求。将该相变材料与建筑材料结合制得相变墙体材料,能调控室内温度,从而降低空调能耗,在建筑节能领域具有可观的应用前

Prediction of Energy Resolution in the JUNO Experiment

International audienceThis paper presents the energy resolution study in the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3% at 1 MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The study reveals an energy resolution of 2.95% at 1 MeV. Furthermore, the study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data taking. Moreover, it provides a guideline in comprehending the energy resolution characteristics of liquid scintillator-based detectors