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首页> 外文期刊>International Journal of Refrigeration >Evaluation of metal hydride machines for heat pumping and cooling applications
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Evaluation of metal hydride machines for heat pumping and cooling applications

机译:评估用于热泵和冷却应用的金属氢化物机器

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摘要

Three different schemes of metal hydride solid sorption devices for heat pumping and cooling applications are presented and compared based on theoretical evaluations. Key parameters obtained from experimental and simulation results from coupledmetal hydride reaction beds have been used for the theoretical evaluation. The single (RS) and double stage (RD) devices show reasonable performances, but they require many moving parts. Using high performance reaction beds, e.g. a capillary tube bundlereaction bed, cycle times of about 5 - 10 mm can be obtained with these devices. This corresponds to a specific power output of 100-200 W kg{sup}-1 (HS) or 150-300 W kg {sup}-1 (HD), referred to the total hydride inventory of the machine. Themultihydride-thermal-wave (HW) system has a lower specific power output, but it offers significant advantages like modest hardware effort, low pumping power and a very wide operating temperature range.
机译:提出了三种用于热泵和冷却应用的金属氢化物固体吸附装置的不同方案,并根据理论评估进行了比较。从耦合金属氢化物反应床的实验和模拟结果获得的关键参数已用于理论评估。单级(RS)和双级(RD)器件显示出合理的性能,但是它们需要许多活动部件。使用高性能反应床,例如使用毛细管束反应床,使用这些装置可获得约5-10 mm的循环时间。这对应于100-200 W kg {sup} -1(HS)或150-300 W kg {sup} -1(HD)的比功率输出,是指机器的总氢化物存量。多元热波(HW)系统具有较低的比功率输出,但具有显着的优势,例如适度的硬件工作量,低的抽运功率以及非常宽的工作温度范围。

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