کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7058285 1458076 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Frequency domain and finite difference modeling of ventilated concrete slabs and comparison with field measurements: Part 1, modeling methodology
ترجمه فارسی عنوان
دامنه فرکانس و مدل سازی اختلاف محدودی از اسلب بتن تهویه و مقایسه آن با اندازه گیری های میدان: قسمت 1، روش مدل سازی
کلمات کلیدی
پاسخ فرکانس، تفاوت معکوس پارامتر لمسی، تابع انتقال، ذخیره انرژی حرارتی فعال، اسلب بتنی تهویه ذخیره انرژی حرارتی ساختمان،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
This paper is the first of two papers that focus on the thermal modeling of building-integrated thermal energy storage (BITES) systems using frequency response (FR) and lumped-parameter finite difference (LPFD) techniques. Structural/non-structural building fabric components, such as ventilated concrete slabs (VCS) can actively store and release thermal energy effectively by passing air through their embedded air channels. These building components can be described as ventilated BITES systems. To assist the thermal analysis and control of BITES systems, modeling techniques and guidelines for FR and LPFD models of VCS are presented in this two-part paper. In this first part, modeling techniques for FR and LPFD approaches based on network theory are presented. A method for calculating the heat transfer between flowing air and ventilated components is developed for these two approaches. Discretization criteria for explicit LPFD models are discussed. For the FR approach, discrete Fourier series in complex frequency form are used to represent the boundary excitations. In the treatment of heat injection from the flowing air as internal source in the VCS, network techniques such as Thévenin theorem, heat flow division, and Y-diakoptic transform are employed. The techniques presented in this paper are applicable to other BITES with hydronic or electric charging/discharging systems. With the FR techniques, model-based control strategies based on transfer functions can be readily developed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 66, November 2013, Pages 948-956
نویسندگان
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