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首页> 外文期刊>International Journal of Refrigeration >Cold storage by tetra-n-butyl ammonium bromide clathrate hydrate slurry generated with different storage approaches at 40 wt% initial aqueous solution concentration
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Cold storage by tetra-n-butyl ammonium bromide clathrate hydrate slurry generated with different storage approaches at 40 wt% initial aqueous solution concentration

机译：通过使用不同存储方式生成的四正丁基溴化铵笼形水合物浆料在初始水溶液浓度为40 wt％的条件下进行冷藏

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摘要

In the present study, the performance of cold storage by tetra-n-butyl ammonium bromide (TBAB) clathrate hydrate slurry (CHS) was studied. TBAB CHS was generated at 40 wt% initial aqueous solution concentration and the experiments were conducted with two different storage approaches, i.e., homogeneous storage and heterogeneous storage, in which the mass fraction of TBAB CHS was experimentally determined by melting experiments. It was found that the mass fraction of TBAB CHS and system COP of heterogeneous storage approach were much higher than those of homogeneous storage approach due to less crystal adhesion on the heat exchanger wall. Moreover, a filter screen was employed in the heterogeneous storage tank to impede the ascending of TBAB hydrate crystals to the top of storage tank. The results showed that the filter screen could reduce TBAB hydrate crystals being pumped into the heat exchanger, resulting in less crystal adhesion on the heat exchanger wall.
机译：在本研究中，研究了四正丁基溴化铵（TBAB）笼形水合物浆液（CHS）的冷藏性能。 TBAB CHS是在40 wt％的初始水溶液浓度下生成的，并通过两种不同的存储方法（即均质存储和非均质存储）进行了实验，其中TBAB CHS的质量分数是通过熔融实验确定的。结果发现，由于晶体壁在换热器壁上的附着力较小，TBAB CHS的质量分数和系统COP的均质存储方法均比均质存储方法高得多。此外，在非均质储罐中使用了滤网，以阻止TBAB水合物晶体上升到储罐的顶部。结果表明，滤网可以减少被泵入热交换器的TBAB水合物晶体，从而减少晶体在热交换器壁上的粘附。

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