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  1. No Access

    Chapter and Conference Paper

    CFD Analysis of Water Content and Minimum Droplet Temperature of Spray Drying Product with Inlet Temperature and Air Flow Direction Variation

    This study aimed to analyze the effect of inlet temperature and airflow direction variation of a spray dryer on the product’s water content and minimum droplet temperature using the means of computational flui...

    Eflita Yohana, Mohammad Tauviqirrahman in Proceedings of the 7th International Confe… (2022)

  2. No Access

    Chapter and Conference Paper

    Modification Drying Flow Direction for Reduction of Particle Residence Time in Spray Drying Using CFD

    Spray drying is ideal for quickly drying food goods. This research aims to evaluate the influence of incoming airflow direction on the residence duration of particle with varying droplet sizes. The computation...

    Henry Carles, Eflita Yohana in Proceedings of the 7th International Confe… (2022)

  3. Article

    Open Access

    Combination of cell signaling molecules can facilitate MYOD1-mediated myogenic transdifferentiation of pig fibroblasts

    Myogenic transdifferentiation can be accomplished through ectopic MYOD1 expression, which is facilitated by various signaling pathways associated with myogenesis. In this study, we attempted to transdifferentiate...

    **sol Jeong, Kwang-Hwan Choi, Seung-Hun Kim in Journal of Animal Science and Biotechnology (2021)

  4. Article

    Open Access

    Transcriptome profiling of pluripotent pig embryonic stem cells originating from uni- and biparental embryos

    Pig pluripotent stem cells have tremendous potential because the pig is a valuable animal as both an agricultural resource and as a preclinical model of human therapy. To date, a lack of understanding of pig p...

    Kwang-Hwan Choi, Dong-Kyung Lee, Jong-Nam Oh, Seung-Hun Kim in BMC Research Notes (2020)

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    Article

    Exergy characteristics of R404A indirect refrigeration system using CO2 as a secondary refrigerant

    In this paper, R404 refrigeration system is evaluated to understand the exergy characteristics of an indirect refrigeration system for R404A that adopted CO2 as a secondary refrigerant. This provides basic data f...

    Wen-Bin Yi, Kwang-Hwan Choi, Jung-In Yoon, Chang-Hyo Son in Heat and Mass Transfer (2019)

  6. No Access

    Article

    Experimental study on the performance of the vapor injection refrigeration system with an economizer for intermediate pressures

    In this study, to investigate the performance characteristics of vapor injection refrigeration system with an economizer at an intermediate pressure, the vapor injection refrigeration system was analyzed under...

    Chang-Uk Moon, Kwang-Hwan Choi, Jung-In Yoon, Young-Bok Kim in Heat and Mass Transfer (2018)

  7. No Access

    Chapter and Conference Paper

    Performance Analysis of Brine Chiller Refrigeration Cycles

    Comparison analysis of vapor-injection, two-stage compression and cascade refrigeration systems is carried out in this paper. R22 and R404A are employed for working fluid. Analysis conditions have been set bas...

    Jung-In Yoon, Chang-Hyo Son, Kwang-Hwan Choi in AETA 2016: Recent Advances in Electrical E… (2017)

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    Article

    Assessment of the performance of a natural gas liquefaction cycle using natural refrigerants

    This study proposed a new cascade liquefaction cycle that uses CO2–C2H6–N2 and CO2–N2, analyzed its performance and exergy using HYSYS which is the liquefaction process simulator, and checked its applicability. ...

    Jung-In Yoon, Kwang-Hwan Choi, Ho-Sang Lee, Hyeon-Ju Kim in Heat and Mass Transfer (2015)

  9. No Access

    Article

    The cooling heat transfer characteristics of the supercritical CO2 in micro-fin tube

    This study intended to verify the cooling heat transfer characteristics of supercritical gas for refrigerating and air-conditioning devices that use CO2, a natural refrigerant, as the operating fluid. Experiments...

    Ho-Saeng Lee, Hyeon-Ju Kim, Jung-In Yoon, Kwang-Hwan Choi in Heat and Mass Transfer (2013)

  10. No Access

    Article

    A model and simulation of cathode flooding and drying on unsteady proton exchange membrane fuel cell

    A water balance has a significant impact on the overall system performance in proton exchange membrane fuel cell. An actual fuel cell application has a dynamic electrical load which means also dynamic electric...

    A. Bakhtiar, Young-Bok Kim, **-Kwang You in Journal of Central South University (2012)