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首页> 外文期刊>Journal of Chemical Engineering of Japan >Heat and Mass Transfer Characteristics of an Active Carbon/Ammonia Adsorption Heat Pump with a Packed Bed Type Adsorber
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Heat and Mass Transfer Characteristics of an Active Carbon/Ammonia Adsorption Heat Pump with a Packed Bed Type Adsorber

机译：填充床型吸附器的活性炭/氨吸附式热泵的传热和传质特性

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摘要

An active carbon/ammonia AHP with a packed bed type adsorber was used as a low temperature side AHP in a multi AHP for producing cold heat energy at temperatures below 253 K.Its heat and mass transfer characteristics in the adsorber were experimentally investigated in the assumed practical regeneration temperatures (343-363 K)and heat sink temperatures (273-283 K).Then,the heat and mass transfer model in the packed bed was evaluated by the experimental data of adsorption amount and temperatures in the adsorber.The results from the changes of adsorption amount have shown that the amount of ammonia vapor adsorbed in the adsorption process can be completely desorbed,and the reversibility between adsorption and desorption in the AHP has been proven.As in the condition of pres-surization (>=0.1 MPa),the adsorption/desorption rate of the active carbon/ammonia AHP is larger than that of the silica gel/water AHP.Subsequently,the results of cold heat output illustrated that the adsorption/desorption can be performed equally in the axial direction of the packed bed even if the packed bed height reaches as high as 100 mm.
机译：具有填充床型吸附器的活性炭/氨水AHP在多AHP中用作低温侧AHP，以在253 K以下的温度下产生冷热能。在假设条件下，通过实验研究了其在吸附器中的传热和传质特性实际再生温度（343-363 K）和散热器温度（273-283 K）。然后，通过吸附器中吸附量和温度的实验数据评估填充床中的传热和传质模型。吸附量的变化表明，在吸附过程中吸附的氨气量可以完全解吸，并且已经证明了AHP中吸附与解吸之间的可逆性。在预硫化条件下（> = 0.1 MPa） ），活性炭/氨水AHP的吸附/解吸速率比硅胶/水AHP的吸附/解吸速率大。随后，冷热输出的结果表明吸附/解吸即使填充床的高度高达100 mm，也可以在填充床的轴向上进行相同的操作。

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