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  1. Article

    Open Access

    Round-robin test on thermal conductivity measurement of ZnO nanofluids and comparison of experimental results with theoretical bounds

    Ethylene glycol (EG)-based zinc oxide (ZnO) nanofluids containing no surfactant have been manufactured by one-step pulsed wire evaporation (PWE) method. Round-robin tests on thermal conductivity measurements o...

    Wook-Hyun Lee, Chang-Kyu Rhee, Junemo Koo, Jaekeun Lee… in Nanoscale Research Letters (2011)

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  2. No Access

    Article

    Model for predicting the critical size of aggregates in nanofluids

    Stable suspension of the nanoparticles in the base fluids is inevitable to have the nanofluids be operated properly. Here we report the theoretical model to find the critical size of aggregates in nanofluids f...

    Jung-Yeul Jung, Junemo Koo, Yong Tae Kang in Journal of Mechanical Science and Technology (2013)

  3. No Access

    Article

    Further elucidation of nanofluid thermal conductivity measurement using a transient hot-wire method apparatus

    The Transient Hot-Wire Method (THWM) was developed to measure the absolute thermal conductivity of gases, liquids, melts, and solids with low uncertainty. The majority of nanofluid researchers used THWM to mea...

    Donghoon Yoo, Joohyun Lee, Byeongchan Lee, Suyong Kwon… in Heat and Mass Transfer (2018)

  4. No Access

    Article

    Automated processes of estimating the heating and cooling load for building envelope design optimization

    An automated process is developed to perform dynamic energy simulations for several hundreds or thousands of the conditions required to examine the influence of dozens of building envelope design factor change...

    Seongmi Kang, Seok-gil Yong, **ho Kim, Heungshin Jeon, Hunhee Cho… in Building Simulation (2018)

  5. No Access

    Article

    Automated thermal conductivity measurement algorithm for the transient hot wire method

    Even after more than 20 years of research, establishment of a nanofluid thermal conductivity enhancement mechanism is impeded by differences in research results among researchers. Thermal conductivity measurem...

    Kyungmin Kim, Joohyun Lee, Junemo Koo in Journal of Mechanical Science and Technology (2019)

  6. Article

    Pressure drop and optimization meta-models for arbitrary low-height pleated filter shapes and flowrates

    This study delivers equations useful for low-height pleated fibrous filter design: two pressure drop equations and one set of optimum design equations applicable to arbitrary pleated filter shapes and flowrate...

    Paul Choi, Christian Ariane Santos… in Journal of Mechanical Science and Technolo… (2021)

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