کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4992816 1457467 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The combined effects of temperature and electric fields on formaldehyde emission from building materials: Experiment and molecular dynamics simulation
ترجمه فارسی عنوان
اثرات ترکیبی دما و میدان های الکتریکی بر انتشار فرمالدئید از مصالح ساختمانی: شبیه سازی تجربی و پویایی مولکولی
کلمات کلیدی
درجه حرارت، میدان الکتریکی، فرمالدئید، مصالح ساختمانی، سه پارامتر کلیدی، دینامیک مولکولی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
An experimental and molecular dynamics simulation study concerning the emission of formaldehyde from building materials in different temperature and electric fields was conducted. Formaldehyde concentration was tested at the temperature of 298 K, 303 K, 308 K, 313 K and electric field of 0 kV, 12 kV, 18 kV, 24 kV. A new calculation method for solving three key parameters of formaldehyde emission was proposed and verified by experimental results. It was concluded that building materials emitted more formaldehyde at higher temperature and electric field. With the increase of temperature and electric field, experimental results indicated that both initial concentration (C0) and diffusion coefficient (Dm) increased while partition coefficient (Km) decreased. In addition, the temperature made larger contribution than electric field not only on formaldehyde emission and three key parameters by experimental results, but also on adsorption potential in the molecular dynamics simulation. What's more, the adsorption potential decreased while diffusion coefficient increased with greater temperature and electric field in the molecular dynamics simulation system, corresponding well with experimental results. The results of this study confirmed the contribution of electric field and temperature for the reduction of formaldehyde in the man-made boards.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Communications in Heat and Mass Transfer - Volume 87, October 2017, Pages 105-111
نویسندگان
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