Characteristics of R718 refrigeration/heat pump systems with two-phase ejectors

被引：18
|
作者：
Sarevski, Milan N. [1 ]
Sarevski, Vasko N. [1 ]
机构：
[1] Ss Cyril & Methodius Univ, Fac Mech Engn, Karpos 2 Bb,P Box 464, Skopje 1000, Macedonia
来源：
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2016年 / 70卷
关键词：
R718 refrigeration cycles; Thermal vapor recompression; Two-phase condensing ejectors; Efficiency; VAPOR COMPRESSION REFRIGERATION; CONVERGING-DIVERGING NOZZLES; ONE-DIMENSIONAL MODEL; EXPERIMENTAL VALIDATION; EXPANSION WORK; CFD ANALYSIS; WATER-VAPOR; PERFORMANCE; CYCLE; CO2;
D O I：
10.1016/j.ijrefrig.2016.07.007
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The paper describes investigations of R718 refrigeration cycles with two-phase ejector as a compression device. The complex thermal and flow phenomena inside two-phase ejector flow field are analyzed and characteristics of two-phase ejectors are estimated. Results of investigations of numerous refrigeration systems with two-phase ejectors are analyzed and recommendations for optimal geometric parameters of two-phase ejectors are summarized. Novel R718 refrigeration/heat pump systems are proposed: simple two-phase ejector cooling cycle, two-phase ejector heat pump cycle applied in evaporators-concentrators, and combined compact R718 centrifugal compressor-two-phase ejector water chiller for air conditioning application, and their thermal and performance characteristics are estimated. (C) 2016 Elsevier Ltd and IIR. All rights reserved.
引用
收藏
页码：13 / 32
页数：20
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