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采用固化复合吸附剂的热化学吸附式低温冷冻系统的性能
  • 期刊名称：化工学报
  • 时间：0
  • 页码：192-198
  • 语言：中文
  • 分类：TB64[一般工业技术—制冷工程]
  • 作者机构：[1]上海交通大学制冷与低温工程研究所
  • 相关基金：国家自然科学基金重点项目(50736004)~~
  • 相关项目：低品位余热高效利用的多效双重吸附制冷研究
作者： 王如竹|吴静怡|王丽伟|陈恒|李廷贤|
关键词： 热化学, 吸附制冷, 低温冷冻, 固化复合吸附剂, 传热
中文摘要：

设计了一种以氯化锰-氨为吸附工质对的热化学吸附式低温冷冻系统,利用膨胀石墨的多孔特性作为复合反应物的添加剂来提高吸附剂的传质性能,同时采用压块固化技术以提高吸附剂的传热性能。实验结果表明,膨胀石墨的添加有效防止了吸附剂的结块和吸附性能的衰减,复合吸附剂吸附量高达0.47 kg NH3·（kg salt）-1;吸附剂与制冷剂之间的化学反应对反应器温度的变化有较大影响,蒸发温度不同导致吸附剂的吸附平台温度不同,且蒸发温度越低,吸附剂吸附合成反应速率越低;当蒸发温度从-35℃上升到0℃时,单位质量吸附剂制冷功率SCP（specific cooling power）从206 W·kg-1增大到706 W·kg-1。冷却水温度为25℃、蒸发温度为-30℃时,采用该固化复合吸附剂的吸附式低温冷冻系统SCP和COP分别高达350 W·kg-1和0.34。

同期刊论文项目
低品位余热高效利用的多效双重吸附制冷研究
期刊论文 63 会议论文 28 专利 12
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