کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
264139 504093 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Developing a model for fibrous building materials
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Developing a model for fibrous building materials
چکیده انگلیسی

Ventilation systems are now used to ensure optimal indoor temperature and humidity in contemporary buildings such as showrooms, museums, offices, and homes. Winter indoor humidity can be very low due to the low humidity contained within fresh outdoor air supply. Humidification becomes necessary to raise indoor humidity, which also raises primary energy demand.Three approaches have been examined in a research project to reduce humidification/dehumidification energy consumption:(1)Moisture storage (absorption and emission of moisture-peaks)(2)Air flow control optimization(3)Moisture recovery by the ventilation systemThis paper focuses on the first approach, air humidification and dehumidification using moisture storage. A model was developed to illustrate both the microscopic and macroscopic hysteresis of moisture storage, and transport capacities of fibrous materials. The necessary parameters for the model have been obtained using measurements from a number of different materials that were used as humidity buffers. Precise equipment to measure humidity was constructed, tested, and used over a very long measurement period, during which detailed measurements of moisture absorption and emission were measured from different types of fibreboard sheets. The simulations generated by the model showed very good agreement with the measured results.


► We developed a model for fibrous building materials.
► The model illustrate both the microscopic and the macroscopic hysteresis of the moisture storage and transport processes.
► We constructed, tested and used a specific equipment to measure humidity.
► It is possible to advance moisture buffers with a larger buffering effect.
► The integration of the developed model in the common tools is presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy and Buildings - Volume 43, Issue 11, November 2011, Pages 3189–3199
نویسندگان
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