Browse Technical Reports - Air Conditioning and Refrigeration Center by Subject "microchannel heat exchangers"

  • Traeger, K.M.; Hrnjak, P.S. (Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2005-06)
    This thesis focuses on microchannel heat exchangers, and the methods used to try and reduce the charge contained in them. First, four condensers were designed and manufactured with the same air side characteristics and same ...

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  • Kulkarni, T.; Bullard, C.W. (Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2003-02)
    The present work is based on theoretical and computational investigations into microchannel heat exchangers. Microchannel heat exchangers have long been used as condensers but concerns regarding refrigerant maldistribution ...

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  • Monroe, C.A.; Newell, T.A.; Chato, J.C. (Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2003-04)
    Pressure drop and heat transfer measurements were taken for smooth and internally enhanced aluminum microchannels using pure R134a. Adiabatic, evaporation, and condensation tests were conducted in the horizontally-oriented ...

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  • Vardan, A.; Dunn, W.E. (Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 1997-11)
    A study of heat transfer and pressure drop characteristics for single-phase and twophase flow of refrigerants in micro channel tubes was conducted. An existing facility was modified to perform tests on a single microchannel ...

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  • Kulkarni, T.; Bullard, C.W.; Cho, K. (Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign., 2002-06)
    The present study examined design issues of microchannel evaporators associated with the flow maldistribution caused due to header pressure gradient. The effects of mass flow maldistribution on microchannel heat exchanger ...

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