| 摘要: |
| 蓄冷密度是表征制冷剂水合物蓄冷性能的重要参数。根据能量守恒定律，设计搭建了混合量热装置，提出了测定具体工作温度区间制冷剂水合物浆体蓄冷密度的方法。利用这一方法测得由R141b/H2O粗混合体系和R141b/H2O微乳液体系制得的水合物浆体在4~12 ℃的蓄冷密度分别为49.6 kJ/kg和99.1 kJ/kg，约为水在此温度区间蓄冷密度的1.5倍和3倍。相对于水蓄冷而言，可有效减少蓄冷槽的占地空间。 |
| 关键词: 水合物浆体 蓄冷密度 混合量热 R141b |
| DOI： |
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| 基金项目:国家自然科学基金(NO.51176154)资助项目。 |
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| Determination of Hydrate Slurry’s Cool-storage Density with Mixing Calorimetry Method |
| Zhang Longming,Li Pu,Li Na,Yang Hang |
| (School of Chemical Engineering and Technology; Key Laboratory of MOE on Thermo-Fluid Science and Engineering, Xi’an Jiaotong University) |
| Abstract: |
| Cool-storage density is one of the most important parameters for evaluating the performance of refrigerant hydrate. A calorimetric device was set up and a mixing calorimetry method was established to measure the cool-storage density of hydrate slurry according to the law of energy conservation. The cool-storage densities of hydrate slurries formed from R141b/H2O coarse mixture and R141b/H2O microemulsion were measured within 4-12 ℃. The results are 49.6 kJ/kg and 99.1 kJ/kg, which are about 1.5 times and 3 times of that of water, respectively. Volume of storage tank could be reduced significantly by utilizing refrigerant hydrate slurry instead of water. |
| Key words: hydrate slurry cool-storage density mixing calorimetry R141b |
