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This paper presents analysis of location of refrigerant inventory and theoretical results of charge reduction in a typical bottle cooler. The original unit was first characterized by determining its capacity, the coefficient of performance (COP), pull-down characteristics and total charge using non-destructive instrumentation. After that the unit was instrumented by insertion of valves to separate main components and allow measurements of the charge in each of them, as well as pressure transducers, mass flow meter and thermocouples. Condenser is found to be the component that retains the most charge. The system was modelled using Engineering Equation Solver (EES) for calculation of performance and charge. Models are fully validated using steady state experimental results. Discussion of the results and direction for the charge reduction is provided.
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Details
- Original title: Refrigerant charge reduction in small commercial refrigeration systems.
- Record ID : 30013412
- Languages: English
- Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
- Publication date: 2014/07/14
Links
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Indexing
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Themes:
Compressors;
Evaporators, condensers and other heat exchangers;
Heat transfer;
Containment, refrigerant charge reduction;
Energy efficiency, energy savings - Keywords: Refrigerating system; Commercial application; Heat transfer; Modelling; COP; Condenser; Refrigerant charge; Distribution; Compressor; Pressure drop
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Two-phase pressure drop with non uniform distri...
- Author(s) : LÓPEZ BELCHÍ A., VERA-GARCÍA F., GARCÍA-CASCALES J. R., et al.
- Date : 2012/10/25
- Languages : English
- Source: RCR 2012. 3rd IIR Workshop on Refrigerant Charge Reduction in Refrigerating Systems: Valencia, Spain, October 25-26, 2012.
- Formats : PDF
View record
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Charge reduction potentials of several refriger...
- Author(s) : PADILLA-FUENTES Y., HRNJAK P.
- Date : 2012/07/16
- Languages : English
- Source: 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
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Prediction of R410A charge amount in a microcha...
- Author(s) : PARK C. Y.
- Date : 2011/08/21
- Languages : English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
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Refrigerant and lubricant charge in AC heat exc...
- Author(s) : JIN S., HRNJAK P.
- Date : 2014/07/14
- Languages : English
- Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
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Refrigerant charge optimization.
- Author(s) : CORBERÁN J. M.
- Date : 2012/10/25
- Languages : English
- Source: RCR 2012. 3rd IIR Workshop on Refrigerant Charge Reduction in Refrigerating Systems: Valencia, Spain, October 25-26, 2012.
- Formats : PDF
View record