کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7060785 1458696 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Moisture uptake dynamics on desiccant-coated, water-sorbing heat exchanger
ترجمه فارسی عنوان
پویایی جذب رطوبت بر مبدل حرارتی با پوشش آبگرمکن
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Recently a novel concept of water-sorbing heat exchanger has been proposed, which can independently handle latent and sensible loads at the same time and provide a very promising high-efficient solution for temperature and humidity control. Obviously, moisture uptake behavior has great influence on heat exchanger's performance. Here, a series of experiments have been made to clarify whether the linear driving force (LDF) model could be used to describe this behavior and to investigate the water uptake mode at different times. Results show that the LDF model is valid for water-sorbing heat exchanger and the moisture uptake experiences four different modes in general, including non-isothermal adsorption, near-isothermal adsorption, capillary condensation and cooling-based condensation. This study also confirms that salts in porous matrix can accelerate moisture uptake and promote capillary condensation. These results in a great improvement of dehumidification capacity. Besides, an empirical and a semi-empirical framework were developed to evaluate the constant parameters in the LDF model. Meanwhile, a figure of merit of the desiccant, Z, was defined for engineering application, to simplify the LDF model in further.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 126, April 2018, Pages 13-22
نویسندگان
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