Numerical and experimental investigation on nozzle parameters for R410A ejector air conditioning system
Numerical and experimental investigation on nozzle parameters for R410A ejector air conditioning system
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DOI：
10.1016/j.ijrefrig.2013.12.008
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发表时间：
2014-04
期刊：
影响因子：
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通讯作者：
Jichao Hu;Junye Shi;Yuanyuan Liang;Zijiang Yang;Jiangping Chen
中科院分区：
文献类型：
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作者：
Jichao Hu;Junye Shi;Yuanyuan Liang;Zijiang Yang;Jiangping Chen
本文对带有两相喷射器的R410A空调系统进行了实验和数值研究。设计并制作了基于两相流仿真模型的可调液气喷射器，并在R410A空调系统中进行了实验。在给定条件下研究了喷嘴的喉部直径（Dnt）和位置（Dnm）。实验结果表明，Dnt 为 1 mm 和 Dnm 为 4 mm 可获得最佳的喷射器效率和系统 EER。不同直径的喷嘴和可调喷射器也在不同条件下进行了研究。实验结果表明，可调喷嘴喷射器能够满足不同工况的要求。这对于今后喷射器在空调系统中的应用非常有益。
The experimental and numerical study on R410A air conditioning system with two-phase ejector were presented in this paper. An adjustable liquid–gas ejector based on a two-phase flow simulation model was designed and manufactured for experiment in the R410A air conditioning system. Both throat diameter (Dnt) and position (Dnm) of nozzle were studied under the given conditions. The experimental results showed thatDntof 1 mm andDnmof 4 mm yielded the best ejector efficiency and system EER. Nozzles with differentDntand the adjustable ejector were also studied under different conditions. The experimental results showed that the ejector with adjustable nozzle can meet the requirements of different operation conditions. It was very useful for the future application of ejector in the air conditioning system.