کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
263065 504063 2014 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hygrothermal study of lightweight concrete hollow bricks: A new proposed experimental–numerical method
ترجمه فارسی عنوان
مطالعه هیروترمال آجر توخالی بتن سبک: یک روش عددی تجربی پیشنهادی جدید
کلمات کلیدی
مدل سازی عنصر محدود آجر توخالی بتن سبک، شبیه سازی عددی غیر خطی، تجزیه و تحلیل هورمتریکی همراه، تست های هیدروترمال رسانه های متخلخل
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی


• A new hygrothermal test procedure based on hot-box apparatus is presented.
• The hygrothermal behavior of a multi-holed wall is solved by FEM–DOE–GDO methodology.
• This new hybrid method saves a 70% of energy and time with respect to current tests.
• The numerical and experimental results have shown a very good agreement.

The aim of this paper is the development of a new hybrid methodology to study the moisture transport and heat transfer in masonry structures made up of light concrete hollow bricks (LWHBs) from the numerical and experimental points of view. In order to solve this coupled nonlinear hygrothermal analysis, an instrumented one square meter wall was subjected to eight different moisture stages in the laboratory using a special testing device during a total time of 1480 h. In order to simulate the different experimental stages, steady and transient states were implemented in the finite element models. Furthermore, the design of experiments methodology (DOE) and the goal design optimization (GDO) technique are used to calculate the best optimal parameters from the laboratory tests. Once the optimal parameters have been obtained, the finite element models for each stage are solved so that the moisture and temperature distributions were calculated. In this sense, a very good agreement between the numerical and experimental results is achieved. Finally, the most important conclusions of this study and advantages of this new methodology are exposed.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy and Buildings - Volume 70, February 2014, Pages 194–206
نویسندگان
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