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    ARTICLE

    Influence of Microwave Power and Heating Time on the Drying Kinetics and Mechanical Properties of Eucalyptus gomphocephala Wood

    Mariam Habouria1, Sahbi Ouertani1,*, Noura Ben Mansour2, Soufien Azzouz1, Mohamed Taher Elaieb3
    Frontiers in Heat and Mass Transfer, DOI:10.32604/fhmt.2024.057387
    (This article belongs to the Special Issue: Multiscale Heat and Mass Transfer and Energy Conversion)
    Abstract The aim of this paper was to characterize through experiment the moisture and temperature kinetic behavior of Eucalyptus gomphocephala wood samples using microwave heating (MWH) in two scenarios: intermittently and continuously. The mechanical properties and surface appearance of the heated samples were also investigated. Continuous and intermittent microwave drying kinetic experiments were conducted at a frequency of 2.45 GHz using a microwave laboratory oven at 300, 500, and 1000 watts. Drying rate curves indicated three distinct phases of MWH. Increasing the microwave power with a shorter drying time led to rapid increases in internal temperature and… More >

  • Open Access

    ARTICLE

    Modeling and Experimental Study of an Open Two-Phase Loop Driven by Osmotic Pressure and Capillary Force

    Hanli Bi1, Zheng Peng2, Chenpeng Liu3, Zhichao Jia1, Guoguang Li1, Yuandong Guo2, Hongxing Zhang1,*, Jianyin Miao1
    Frontiers in Heat and Mass Transfer, DOI:10.32604/fhmt.2024.057933
    (This article belongs to the Special Issue: Recent Advances in Loop Heat Pipe)
    Abstract As space technology advances, thermal control systems must effectively collect and dissipate heat from distributed, multi-source environments. Loop heat pipe is a highly reliable two-phase heat transfer component, but it has several limitations when addressing multi-source heat dissipation. Inspired by the transport and heat dissipation system of plants, large trees achieve stable and efficient liquid supply under the influence of two driving forces: capillary force during transpiration in the leaves (pull) and root pressure generated by osmotic pressure in the roots (push). The root pressure provides an effective liquid supply with a driving force exceeding… More >