Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Frequency domain and finite difference modeling of ventilated concrete slabs and comparison with field measurements: Part 2. Application
This paper is the second of two papers that present techniques and guidelines for frequency response (FR) and lumped-parameter finite difference (LPFD) approaches for the thermal modeling of building-integrated thermal energy storage (BITES) systems. To assist the thermal analysis and control of active BITES systems, development of FR and LPFD models are presented in this two-part paper. Modeling methodology and techniques are presented in paper Part 1 using ventilated concrete slabs (VCS) for demonstration. In this part, the methodology is applied to two types of VCS. The modeling results from different FR and explicit LPFD models with different time steps and discretization schemes are presented. The results are compared to each other, and with field-measured data from a solar demonstration house with a VCS. Simulation results show that time step of half an hour for FR models results in less than 3% error in thermal performance. For LPFD models, discretization with Biot number smaller than 0.5 can reduce error to about 5%.
Frequency domain and finite difference modeling of ventilated concrete slabs and comparison with field measurements: Part 2. Application
This paper is the second of two papers that present techniques and guidelines for frequency response (FR) and lumped-parameter finite difference (LPFD) approaches for the thermal modeling of building-integrated thermal energy storage (BITES) systems. To assist the thermal analysis and control of active BITES systems, development of FR and LPFD models are presented in this two-part paper. Modeling methodology and techniques are presented in paper Part 1 using ventilated concrete slabs (VCS) for demonstration. In this part, the methodology is applied to two types of VCS. The modeling results from different FR and explicit LPFD models with different time steps and discretization schemes are presented. The results are compared to each other, and with field-measured data from a solar demonstration house with a VCS. Simulation results show that time step of half an hour for FR models results in less than 3% error in thermal performance. For LPFD models, discretization with Biot number smaller than 0.5 can reduce error to about 5%.
Frequency domain and finite difference modeling of ventilated concrete slabs and comparison with field measurements: Part 2. Application
Chen, Yuxiang (Autor:in) / Athienitis, Andreas K. (Autor:in) / Galal, Khaled E. (Autor:in)
International Journal of Heat and Mass Transfer ; 66 ; 957-966
2013
10 Seiten, 22 Quellen
Aufsatz (Zeitschrift)
Englisch
Concrete Creep Modeling: Application to Slabs on Ground
| ASCE | 2019
Comparison of field and laboratory strengths of concrete slabs
| Tema Archiv | 2009
Modeling Punching Shear of Reinforced Concrete Slabs Using Layered Finite Elements
| Online Contents | 1998
Nonlinear Finite Element for Reinforced Concrete Slabs
| British Library Online Contents | 2005