Summary
The inverter air conditioner has been widely implemented due to higher energy efficiency and better thermal sensation. Because the frequency of the compressor is modulated in a large range according to the variation of the working conditions, the working states of the air conditioner varies a lot. The thermodynamic potential should be analyzed to enhance the annual performance. In this research, exergy analysis of experimental data is conducted for evaluating the irreversible loss distribution of inverter air conditioners in different operating states, which shows that most exergy loss in low frequency occurs in the evaporator and the compressor. Furthermore, thermal resistance analysis on the evaporator illustrates that the inner thermal resistance is almost equal to the external when it operates in low frequency. This work clarifies that heat transfer enhancement on the refrigerant side of evaporators is the key to improve the refrigeration efficiency of inverter air conditioners.
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Details
- Original title: Analysis on potential to enhance the energy efficiency of inverter air conditioners.
- Record ID : 30026791
- Languages: English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Publication date: 2019/08/24
- DOI: http://dx.doi.org/10.18462/iir.icr.2019.1514
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Indexing
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The applicability of the large temperature diff...
- Author(s) : SUN W. Z., LIU H. M., ZHANG L. H.
- Date : 2008/04/05
- Languages : English
- Source: Cryogenics and refrigeration. Proceedings of ICCR'2008.
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- Author(s) : FIORINO D. P.
- Date : 2002/01/12
- Languages : English
- Source: ASHRAE Transactions. 2002 Winter Meeting, Atlantic City, New Jersey. Volume 108, part 1 + CD-ROM.
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Development of 20 IEER rooftop units: a simulat...
- Author(s) : SHEN B., RICE C. K., VINEYARD E. A.
- Date : 2012/07/16
- Languages : English
- Source: 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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Application of pinch analysis in an air-conditi...
- Author(s) : HUANG Y., YU Y.
- Date : 1998/07/14
- Languages : English
- Source: Proceedings of the 1998 Purdue International Refrigeration Conference.
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A new structural optimization method for distri...
- Author(s) : GAO Y., DING G., ZHENG Y., et al.
- Date : 2016/08/21
- Languages : English
- Source: 12th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2016). Proceedings. Édimbourg, United Kingdom, August 21st-24th 2016.
- Formats : PDF
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