DEVELOPMENT OF COMPACT GAS-LIQUID SEPARATOR USING SURFACE TENSION
DEVELOPMENT OF COMPACT GAS-LIQUID SEPARATOR USING SURFACE TENSION
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利用表面张力开发紧凑型气液分离器
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
H. Iwata
中科院分区：
文献类型：
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作者：
N. Shikazono;R. Azuma;T. Sameshima;H. Iwata
在本研究中，提出了一种利用表面张力的紧凑型气液分离器，并对其性能进行了评价。气泡在膨胀段被挤出微槽，而液相则被限制在微槽内。气液分离的两个主要限制，即，(1)发现并研究了高液相流量下的液泛极限和高气相流量下的夹带极限。提出了预测气液分离极限的无偏关联式。在此基础上，研制了一系列适用于R410 A空调系统的4- 16 kW容量的气液分离器。分离器的体积是传统分离器的1/7。在真实的R410 A循环中证明了通过从蒸发器旁路气体来降低压降。
In the present study, a compact gas-liquid separator using surface tension is proposed and its performance is evaluated. The gas bubbles are forced out from the micro grooves at the expanding section by the minimization effect of excess gas-liquid interface free energy, while the liquid phase remains confined inside the micro grooves. Two major limits of gas-liquid separation, i.e., (1) flooding limit at high liquid flow rate, and (2) entrainment limit at high gas flow rate are found and investigated. Dimensionless correlations for predicting gas-liquid separation limits are proposed. Then, a series of 4-16kW capacity gas-liquid separators for practical R410A air conditioning system are developed. The volume of the separator is about 1/7 compared to the conventional separators. Pressure drop reduction by by-passing the gas from the evaporator is demonstrated in the real R410A cycle.
利用表面张力开发紧凑型液气分离器
DOI：
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发表时间：
2008
期刊：
Transactions of the Japan Society of Mechanical Engineers, Series B (in press)
影响因子：
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作者：
Azuma R;Shikazono;N.;Iwata;H
通讯作者：
H