TITLE

CYCLE ANALYSIS OF LINEAR COMPRESSORS USING THREE-DIMENSIONAL CFD

AUTHOR(S)
An, I. Y.; Lee, Y. L.
PUB. DATE
June 2014
SOURCE
Journal of Engineering & Applied Sciences;Jun2014, Vol. 9 Issue 6, p874
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In order to improve the efficiency of the refrigeration cycle or the heat pump cycle, it is important to improve the efficiency of a compressor. In this study, the authors intended to develop a three-dimensional numerical model that can predict the performance of a linear compressor. For this purpose, CFD model which can simulate the entire cycle was developed. The numerical analysis on the cooling capacity of two linear compressors was successfully conducted and the numerical results were in good agreement with the experimental results. In future, if considering the detailed valve behavior, the accuracy of the numerical analysis model can be further improved.
ACCESSION #
96709037

 

Related Articles

  • Development Trend of Scroll Compression Heat Pump Systems. Ning Zhang; Lu Sha; Zhenqian Zhan // Mechanical Engineering & Technology; 

    Some new technical methods are developed in order to increase the running scope of scroll compression heat pump systems. The most popular three ones are introduced in this article. They are 1) how to establish a heat pump system with economizer and auxiliary injection circuit; 2) how to adjust...

  • Piston compressor parameter comparison for operation with air and freon. Antipov, Yu. A.; Loban, M. V.; Kiryushkin, A. A. // Chemical & Petroleum Engineering;May2007, Vol. 43 Issue 5/6, p351 

    Importance is demonstrated for the setting up of efficient compressors for heat pumps and refrigeration equipment. Basic relationships are examined that allow one to determine the main compressor parameters: transfer coefficients, energy efficiency, work done and flow rate on using various...

  • Ammonia's Future. Pearson, Andy // ASHRAE Journal;Feb2008, Vol. 50 Issue 2, p30 

    The article presents information on the use of ammonia in refrigeration systems. The advantages of ammonia over other refrigerants include its efficiency, low cost, ready availability, robust performance under less than ideal maintenance practices, and relative environmental friendliness....

  • Lubricating Oil. Pearson, Andy // ASHRAE Journal;Nov2012, Vol. 54 Issue 11, p72 

    The article explores in a non-technical manner, the concepts in refrigeration and heat pumps focusing on lubricating oil. Lubricating oil, it says is critical for the continuing operation of a compressor and discusses problems when it becomes a nuisance such as during low temperatures, when it...

  • Optimization of Lubricant Return in Refrigeration Systems. Vlček, Petr; Formánek, Marian // Advanced Materials Research;2014, Issue 1041, p35 

    Oil is necessary for most of the heat pumps, cooling and freezing equipment, for proper operation of the compressor and other moving parts. Speed of the refrigerant vapor in the critical section, which is suction piping, is strongly dependent on the evaporating temperature, but also on the...

  • Who's in Charge? Pearson, Andy // ASHRAE Journal;Jun2013, Vol. 55 Issue 6, p78 

    The article explains that the cooling capacity of a refrigeration system is determined by the amount of gas that the compressor pumps, while the expansion valve is responsible for the flow rate of refrigerant back from the condenser to the evaporator. The author states that problems with...

  • Heat Reclaim Service Issues. Demma, Dave // Air Conditioning Heating & Refrigeration News;5/28/2007, Vol. 231 Issue 4, p22 

    The article presents a three-part series of a discussion about heat reclaim in Type B three-way valve operation. The function of heat reclaim coil in the series method is to desuperheat the discharge vapor only. In rare occasion, pilot connection to the suction header is frosted when the...

  • Computational Fluid Dynamics Modeling of the Turbulent Flow in the Expansion Valves. Pourmahmoud, Nader; Najafpour, Hadi; Heidarpour, Vahid; Rezazadeh, Sajjad // Journal of Applied Sciences Research;Sep2011, Vol. 7 Issue 9, p51 

    In this article, numerical simulation of 3D, compressible and turbulent coolant two phases fluid flow inside an expansion valve has been investigated. Because of turbulent behavior of flow, through the expansion valve, the k-∊ turbulence model is utilized to the governing equations. The...

  • The evolution of compressors. Wheeler, Jim // Supply House Times;Jun2013, Vol. 56 Issue 4, p54 

    The article offers the author's insights regarding the compressors's evolution. The author mentions that the old piston-type compressors were vulnerable to damage from floodback and refrigerant foaming. The author states that the new "compliant" scroll compressors has no piston which can damage...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics