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Experimental research on the concentration characteristics of R32 and R161′ combustion product HF

Author

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  • Feng, Biao
  • Yang, Zhao
  • Zhai, Rui

Abstract

Fluorine-containing refrigerants will still play an irreplaceable role in the process of research and development of new refrigerants. So it is critical to study the main toxic combustion product HF. This paper contributed to concentration characteristics of HF about R32 and R161 on particular concentrations when combustion reaction occurred. Firstly, a new enclosed test method of concentration of HF (CHF) was presented through comparative analysis different existent methods and results. Then based on the original experimental system independently designed and built, actual CHF of 16.9%/16.89% R32 and 4.17%–4.74% R161 were measured respectively under the conditions of normal temperature and humidity. Moreover, an equation was obtained to estimate the relationship between the actual CHF and concentration of R161 (CR161), when CR161 was in the range of lower flammability limit (LFL) and stoichiometric concentration (Cst). And the possible affected factors of the actual CHF were analyzed. Finally it should be given sufficient attention that the risk of high CHF still exists. Therefore, the results will be of universal guiding significance for the security application of fluorine-containing refrigerants in this paper.

Suggested Citation

  • Feng, Biao & Yang, Zhao & Zhai, Rui, 2017. "Experimental research on the concentration characteristics of R32 and R161′ combustion product HF," Energy, Elsevier, vol. 125(C), pages 671-680.
    • Handle: RePEc:eee:energy:v:125:y:2017:i:c:p:671-680
    DOI: 10.1016/j.energy.2017.02.152
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    References listed on IDEAS

    as
    1. Wu, Xi & Yang, Zhao & Wang, Xiaoming & Lin, Yulong, 2013. "Experimental and theoretical study on the influence of temperature and humidity on the flammability limits of ethylene (R1150)," Energy, Elsevier, vol. 52(C), pages 185-191.
    2. Yang, Zhao & Wu, Xi & Tian, Tian, 2015. "Flammability of Trans-1, 3, 3, 3-tetrafluoroprop-1-ene and its binary blends," Energy, Elsevier, vol. 91(C), pages 386-392.
    3. Yang, Zhao & Wu, Xi, 2013. "Retrofits and options for the alternatives to HCFC-22," Energy, Elsevier, vol. 59(C), pages 1-21.
    4. Choi, Byung Chul & Park, June Sung & Ghoniem, Ahmed F., 2016. "Characteristics of outwardly propagating spherical flames of R134a(C2H2F4)/CH4/O2/N2 mixtures in a constant volume combustion chamber," Energy, Elsevier, vol. 95(C), pages 517-527.
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    Cited by:

    1. Huo, Erguang & Liu, Chao & Xu, Xiaoxiao & Li, Qibin & Dang, Chaobin & Wang, Shukun & Zhang, Cheng, 2019. "The oxidation decom position mechanisms of HFO-1336mzz(Z) as an environmentally friendly refrigerant in O2/H2O environment," Energy, Elsevier, vol. 185(C), pages 1154-1162.
    2. Feng, Biao & Yang, Zhao & Zhai, Rui, 2018. "Experimental study on the influence of the flame retardants on the flammability of R1234yf," Energy, Elsevier, vol. 143(C), pages 212-218.

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    More about this item

    Keywords

    R32; R161; Combustion product; HF; Concentration;
    All these keywords.

    JEL classification:

    • R32 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Real Estate Markets, Spatial Production Analysis, and Firm Location - - - Other Spatial Production and Pricing Analysis

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