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Performance of a split-type air conditioner matched with coiled adiabatic capillary tubes using HCFC22 and HC290

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  • Zhou, Guobing
  • Zhang, Yufeng

Abstract

This paper experimentally investigated the system performance of a split-type air conditioner matching with different coiled adiabatic capillary tubes for HCFC22 and HC290. Experiments were carried out in a room-type calorimeter. The results have shown that (1) similar cooling effects can be achieved by matching various capillary tubes of different inner diameters; (2) parallel capillary tubes presented better system performance and flow stability with weaker inlet pressure fluctuations than the single capillary tube; (3) with the coil diameter of the capillary tube increasing from 40Â mm to 120Â mm, the mass flow rate tended to increase slightly. But the cooling capacity, input power and energy efficiency ratio (EER) did not show evident tendency of change; (4) the refrigerant charge and mass flow rate for HC290 were only 44% and 47% of that for HCFC22, respectively, due to the much lower density. And HC290 had 4.7-6.7% lower cooling capacity and 12.1-12.3% lower input power with respect to HCFC22. However, the EER of HC290 can be 8.5% higher than that of HCFC22, which exhibits the advantage of using HC290. In addition, the experimental uncertainties were analyzed and some application concerns of HC290 were discussed.

Suggested Citation

  • Zhou, Guobing & Zhang, Yufeng, 2010. "Performance of a split-type air conditioner matched with coiled adiabatic capillary tubes using HCFC22 and HC290," Applied Energy, Elsevier, vol. 87(5), pages 1522-1528, May.
    • Handle: RePEc:eee:appene:v:87:y:2010:i:5:p:1522-1528
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    References listed on IDEAS

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    1. Park, Ki-Jung & Jung, Dongsoo, 2009. "Performance of heat pumps charged with R170/R290 mixture," Applied Energy, Elsevier, vol. 86(12), pages 2598-2603, December.
    2. Park, Ki-Jung & Seo, Taebeom & Jung, Dongsoo, 2007. "Performance of alternative refrigerants for residential air-conditioning applications," Applied Energy, Elsevier, vol. 84(10), pages 985-991, October.
    3. Ge, Yunting & Cropper, Roy, 2004. "Air-cooled condensers in retail systems using R22 and R404A refrigerants," Applied Energy, Elsevier, vol. 78(1), pages 95-110, May.
    4. Park, Ki-Jung & Shim, Yun-Bo & Jung, Dongsoo, 2008. "Performance of R433A for replacing HCFC22 used in residential air-conditioners and heat pumps," Applied Energy, Elsevier, vol. 85(9), pages 896-900, September.
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    Cited by:

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    2. Ziya Sogut, M., 2012. "Exergetic and environmental assessment of room air conditioners in Turkish market," Energy, Elsevier, vol. 46(1), pages 32-41.
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    4. Yang, YauBin & Wu, Min-Der & Chang, Yu-Choung, 2014. "Temperature control of the four-zone split inverter air conditioners using LMI expression based on LQR for mixed H2/H∞," Applied Energy, Elsevier, vol. 113(C), pages 912-923.
    5. Bansal, Pradeep, 2015. "High efficiency novel window air conditioner," Applied Energy, Elsevier, vol. 156(C), pages 311-320.

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