کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
242673 501896 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A metric for characterizing the effectiveness of thermal mass in building materials
ترجمه فارسی عنوان
متریک برای توصیف اثربخشی جرم حرارتی در مصالح ساختمانی
کلمات کلیدی
بهره وری انرژی، حجم گرمایی، بی نظیر، متریک، محصولات مصرفی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی


• Proposes a metric for interior thermal mass materials (floors, walls, counters).
• Simple, yet effective, metric composed of easily calculated ‘local’ and ‘global’ variables.
• Like Energy Star, the proposed metric gives a single number to aid consumer choice.
• The metric is calculated and compared for selected, readily available data.
• Drywall, concrete flooring, and wood paneling are quite effective thermal mass.

Building energy use represents approximately 25% of the average total global energy consumption (for both residential and commercial buildings). Heating, ventilation, and air conditioning (HVAC) – in most climates – embodies the single largest draw inside our buildings. In many countries around the world a concerted effort is being made towards retrofitting existing buildings to improve energy efficiency. Better windows, insulation, and ducting can make drastic differences in the energy consumption of a building HVAC system. Even with these improvements, HVAC systems are still required to compensate for daily and seasonal temperature swings of the surrounding environment. Thermal mass inside the thermal envelope can help to alleviate these swings. While it is possible to add specialty thermal mass products to buildings for this purpose, commercial uptake of these products is low. Common building interior building materials (e.g. flooring, walls, countertops) are often overlooked as thermal mass products, but herein we propose and analyze non-dimensional metrics for the ‘benefit’ of selected commonly available products. It was found that location-specific variables (climate, electricity price, material price, insolation) can have more than an order of magnitude influence in the calculated metrics for the same building material. Overall, this paper provides guidance on the most significant contributors to indoor thermal mass, and presents a builder- and consumer-friendly metric to inform decisions about which products could best improve the thermal behavior of the structure.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 128, 1 September 2014, Pages 156–163
نویسندگان
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