TY - JOUR
T1 - Characterization of wire mesh structure for coalescing oil separation
AU - Xu, Jiu
AU - Hrnjak, Pega
N1 - Funding Information:
The authors would like to acknowledge the support of the member companies of the Air Conditioning and Refrigeration Center at the University of Illinois at Urbana-Champaign. The authors would also like to acknowledge the significant contributions made by Dr. Scott Wujek, Dr. Augusto Zimmermann in while they were PhD students, Dr. Ye Feng and Mr. Junqi Ma.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2019/9/3
Y1 - 2019/9/3
N2 - Oil separation is commonly needed in air conditioning or refrigeration systems to reduce the oil circulation rate and keep the oil inside the compressor. For compactness, the oil separation structure integrated into the compressor is more and more popular than traditional external oil separator. This paper presents coalescence, one of the basic mechanisms of droplet separation, studied by quantitative flow visualization and measurements. The misty oil flow through separator is visualized by a high-speed camera and analyzed quantitatively. Oil droplet size and its distribution are determined by video processing. Important flow details are revealed, including oil droplet collision, oil droplet coalescence, oil film breakup and re-entrainment. Separation efficiency is determined as the ratio between drained and incoming oil mass flow rate. Pressure drop is also measured since it is a cost due to separation structures.
AB - Oil separation is commonly needed in air conditioning or refrigeration systems to reduce the oil circulation rate and keep the oil inside the compressor. For compactness, the oil separation structure integrated into the compressor is more and more popular than traditional external oil separator. This paper presents coalescence, one of the basic mechanisms of droplet separation, studied by quantitative flow visualization and measurements. The misty oil flow through separator is visualized by a high-speed camera and analyzed quantitatively. Oil droplet size and its distribution are determined by video processing. Important flow details are revealed, including oil droplet collision, oil droplet coalescence, oil film breakup and re-entrainment. Separation efficiency is determined as the ratio between drained and incoming oil mass flow rate. Pressure drop is also measured since it is a cost due to separation structures.
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U2 - 10.1088/1757-899X/604/1/012037
DO - 10.1088/1757-899X/604/1/012037
M3 - Conference article
AN - SCOPUS:85073604607
SN - 1757-8981
VL - 604
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012037
T2 - 11th International Conference on Compressors and Their Systems 2019
Y2 - 9 September 2019 through 11 September 2019
ER -