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  • P-ISSN1225-0163
  • E-ISSN2288-8985
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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

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    Analysis and hazard evaluation of geat-treansfer fluids for the direct contact cooling system

    분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
    2006, v.19 no.4, pp.323-332
    이연희 (한국과학기술연구원 특성분석센터)
    홍주희 (한국과학기술연구원 특성분석센터)
    신유환 (한국과학기수연구원 열유동제어센터)
    강상우 (한국과학기수연구원 열유동제어센터)
    김서영 (한국과학기수연구원 열유동제어센터)
    김용일 (서울대학교)
    이연희, 홍주희, 신유환, 강상우, 김서영, & 김용일. (2006). . , 19(4), 323-332.

    Abstract

    This paper discusses several low-temperature heat-tranfer fluids, including water-based inorganic salt, organic salt, alcohol/glycol mixtures, silicones, and halogenated hydrocarbons in order to choose the best heat-transfer fluid for the newly designed direct contact refrigeration system. So, it contains a survey on commercial products such as propylene glycol and potassium formate as newly used in super market and food processing refrigeration. The stability of commercial fluids at the working temperature of $-20^{\circ}C$ was monitored as a function of time up to two months. And organic and inorganic compositions of candidate fluids were obtained by analytical instruments such as ES, XRF, AAS, ICP-AES, GC, and GC-MS. Analysis results indicate that commercial propylene glycol is very efficient and safe heat transfer fluids for the direct cooling system with liquid phase.

    keywords
    heat transfer fluid, propylene glycol, potassium formate, GC-MS

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