tailieunhanh - Study of the drying on the pore network in order to comparison of the phase distribution between measured and simulated results
The temperature distribution from the top to the bottom of the network is determined by an infrared camera and then these results are adopted in the mathematical model algorithm. During the drying process, the series of images showing the phase change in network is observed and recorded, which will be processed with an algorithm built in MATLAB. From that, we find out the change of network saturation, drying rate and the increase in the number of clusters and in the size of the main cluster in network. | Journal of Science & Technology 126 (2018) 011-015 Study of The Drying on The Pore Network in order to Comparison of the Phase Distribution between Measured and Simulated Results Tran Quoc Tiep, Ta Hong Duc* Hanoi University of Science and Technology – No. 1, Dai Co Viet Str., Hai Ba Trung, Ha Noi, Viet Nam Received: Demcember 20, 2017; Accepted: May 25, 2018 Abstract Non-isothermal drying processes are empirical studied on the pore network at the different temperature gradients. Their results have been compared with a corresponding mathematical model. To conduct the empirical experiment, a pore network with 50x50 pores, are created by electron lithography method. The temperature distribution from the top to the bottom of the network is determined by an infrared camera and then these results are adopted in the mathematical model algorithm. During the drying process, the series of images showing the phase change in network is observed and recorded, which will be processed with an algorithm built in MATLAB. From that, we find out the change of network saturation, drying rate and the increase in the number of clusters and in the size of the main cluster in network. The phase distribution in the experiment is consistent with the simulation results at different temperature gradients. Keywords: Drying model, Non-isothermal, pore network 1. Introduction1 Plourde and Prat also extended the heat transfer calculations. They have find out the influence of temperature gradients on phase distribution of the gas and liquid [5]. Whereas Huinink focused on the influence of temperature on the drying process [6]. Surasani and Metzger investigated the heat transfer in mono- and bimodal structures during the drying process in convection drying and contact drying [1,7]. However, the statements of all these authors just limited to the simulation model but not yet conducting empirical research in order to verify. In order to model the drying process, continuous model has become a .
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