The efficiency theoretical analysis of the ammonia refrigeration cycle based on the compression in the wet vapor region

2020 ◽  
Author(s):  
V. L. Yusha ◽  
G. I. Chernov ◽  
D. H. Sadvakasov
Keyword(s):  
Theoretical Analysis ◽  
Refrigeration Cycle ◽  
Vapor Region

Theoretical analysis of a combined power and ejector refrigeration cycle using zeotropic mixture

2015 ◽  
Vol 160 ◽  
pp. 912-919 ◽  
Author(s):  
Xingyang Yang ◽  
Li Zhao ◽  
Hailong Li ◽  
Zhixin Yu
Keyword(s):  
Theoretical Analysis ◽  
Refrigeration Cycle ◽  
Zeotropic Mixture

Theoretical Analysis for the Influence of the Regenerative Process on the Trans-Critical CO2 Cycle

2013 ◽  
Vol 860-863 ◽  
pp. 1633-1637
Author(s):  
Jing Lv ◽  
Te Te Hu ◽  
Zhe Bin He ◽  
Eric Hu
Keyword(s):  
Theoretical Analysis ◽  
Regenerative Process ◽  
Operating Conditions ◽  
Refrigeration Cycle ◽  
Thermodynamic Performance ◽  
The Impact

The trans-critical CO2 refrigeration cycle involving a regenerative process is analyzed in this paper. The thermodynamic performance of the cycles with regeneration and without regeneration has been compared. The optimal circumstance for the regenerative process set in the trans-critical CO2 cycle is given. The impact of the regeneration on the performance of the system under difference operating conditions is also discussed in this article.

Theoretical Analysis of Effects of Solution Heat Exchanger on the Performance of Mixed Absorption Refrigeration Cycle

2012 ◽  
Vol 170-173 ◽  
pp. 2521-2524
Author(s):  
Wen Li ◽  
Jun Hua Wan ◽  
Jing Liu ◽  
Zu Yi Zheng ◽  
Wen Ming Xu
Keyword(s):  
Heat Exchanger ◽  
Theoretical Analysis ◽  
Temperature Difference ◽  
Heat Exchangers ◽  
Water Flow Rate ◽  
Cooling Water ◽  
Solution Temperature ◽  
Refrigeration Cycle ◽  
Absorption Refrigeration ◽  
Cooling Water Flow Rate

The model of solution heat exchangers of mixed absorption refrigeration cycle was developed. The effects of strong solution temperature difference between inlet and outlet of solution heat exchanger on the coefficient of performance (COP) and cooling water flow rate of mixed absorption refrigeration cycle were analyzed, at the same time, the effects of temperature difference on the unit heat exchange area of counter-flow and cross-flow solution heat exchangers were analyzed. The theoretical analysis results showed that there was an optimal value for the strong solution temperature difference, for the mixed absorption system, the optimal temperature difference was about 12°C, the corresponding COP was 11.2% higher and the cooling water flow rate was 7.8% less than that of system without heat exchanger.

Performance Analysis of a Novel Compression Refrigeration System

2014 ◽  
Vol 721 ◽  
pp. 170-173
Author(s):  
Zhi Wen Cheng
Keyword(s):  
Performance Analysis ◽  
Theoretical Analysis ◽  
System Performance ◽  
Coefficient Of Performance ◽  
Refrigeration Cycle ◽  
The Novel ◽  
Refrigeration System ◽  
Jet Pump ◽  
Evaporation Temperature ◽  
Compressor Inlet

In this paper, the theoretical analysis and calculation were put forward for the novel compression refrigeration cycle, new cycle compared with conventional compression refrigeration cycle adding a jet pump and evaporator to reduce throttling losses and improve the compressor inlet pressure. The results show that COP decreases with the increase of condensing temperature, with the increase of evaporation temperature increased, and decreased with the increase of the ejector coefficient. Novel compression refrigeration cycle coefficient of performance than the conventional compression refrigeration system performance coefficient increased by 8-15%.

Microdiffraction Patterns of Small Metallic Particles II; Theoretical Analysis

1982 ◽  
Vol 40 ◽  
pp. 668-669
Author(s):  
A. Gómez ◽  
P. Schabes-Retchkiman ◽  
M. José-Yacamán ◽  
T. Ocaña
Keyword(s):  
Experimental Data ◽  
Electron Diffraction ◽  
Theoretical Analysis ◽  
Size Range ◽  
Dynamical Theory ◽  
Metallic Particles ◽  
Splitting Effect

The splitting effect that is observed in microdiffraction pat-terns of small metallic particles in the size range 50-500 Å can be understood using the dynamical theory of electron diffraction for the case of a crystal containing a finite wedge. For the experimental data we refer to part I of this work in these proceedings.

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