Evaluation of Free Hanging Acoustic Panel Design on the Cooling Characteristic of Thermally Activated Building System Through Two Dimensional Heat Transfer Analysis

2018 ◽  
Vol 12 (2) ◽  
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Analysis ◽  
Two Dimensional ◽  
Thermally Activated ◽  
Building System ◽  
Panel Design

A two-dimensional heat transfer analysis of the thermal-trap collector

Solar Energy ◽  
1988 ◽  
Vol 40 (2) ◽  
pp. 127-133 ◽  
Author(s):  
N.E. Wijeysundera ◽  
V. Thevendran
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Analysis ◽  
Two Dimensional

scholarly journals Radiative heat transfer analysis by the Radiative Heat Ray method (Analysis in a two-dimensional model)

1986 ◽  
Vol 52 (476) ◽  
pp. 1734-1740 ◽  
Author(s):  
Hiroshi HAYASAKA ◽  
Kazuhiko KUDO ◽  
Hiroshi TANIGUCHI ◽  
Ichiro NAKAMACHI ◽  
Toshiaki OMORI ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Heat Transfer Analysis ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Ray Method ◽  
Two Dimensional Model ◽  
Method Analysis

scholarly journals Two-dimensional heat transfer analysis of timber structure walls filled with hemp-lime composite

2019 ◽  
Vol 252 ◽  
pp. 05015 ◽  
Author(s):  
Przemysław Brzyski ◽  
Sylwia Duda ◽  
Andrzej Raczkowski
Keyword(s):  
Heat Transfer ◽  
Temperature Distribution ◽  
Timber Structure ◽  
Heat Transfer Analysis ◽  
Two Dimensional ◽  
Thermal Transmittance ◽  
Timber Frame ◽  
Thermal Insulating ◽  
Frame Construction ◽  
Industrial Hemp

Hemp-lime composite is a thermal insulating material used as a filling in timber frame construction walls. It is a material based on the wooden part of industrial hemp stalk (hemp shives) and lime binder. In practice, different wall thicknesses, composites with different thermal properties and various configurations of timber structure are used. These factors affect the temperature distribution in the wall. In the thermally weaker areas of walls, there is a greater risk of condensation and mould growth. This issue is important while designing walls based on organic materials. The paper presents the two-dimensional (2D) heat-transfer analysis based on the finite-element method, using THERM software. Several variants of external walls were adopted for the analysis. Thermal parameters of hemp-lime composites used in the analysis were obtained from our own research. The results of the analysis were presented as the values of the thermal transmittance coefficient and linear thermal transmittance equivalent to timber construction. The temperature distribution for an exemplary wall was also shown graphically in the form of isotherms and colour-flooded isotherms.

scholarly journals Empirical Validation of Heat Transfer Performance Simulation of Graphite/PCM Concrete Materials for Thermally Activated Building System

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Jin-Hee Song ◽  
Hye-Sun Jin ◽  
Su-Gwang Jeong ◽  
Sumin Kim ◽  
Seung-Yeong Song ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Thermal Behavior ◽  
Three Dimensional ◽  
Construction Materials ◽  
Empirical Validation ◽  
Efficient Technology ◽  
Dynamic Simulations ◽  
Thermally Activated ◽  
Hollow Core Slab ◽  
Building System

To increase the heat capacity in lightweight construction materials, a phase change material (PCM) can be introduced to building elements. A thermally activated building system (TABS) with graphite/PCM concrete hollow core slab is suggested as an energy-efficient technology to shift and reduce the peak thermal load in buildings. An evaluation of heat storage and dissipation characteristics of TABS in graphite/PCM concrete has been conducted using dynamic simulations, but empirical validation is necessary to acceptably predict the thermal behavior of graphite/PCM concrete. This study aimed to validate the thermal behavior of graphite/PCM concrete through a three-dimensional transient heat transfer simulation. The simulation results were compared to experimental results from previous studies of concrete and graphite/PCM concrete. The overall thermal behavior for both materials was found to be similar to experiment results. Limitations in the simulation modeling, which included determination of the indoor heat transfer coefficient, assumption of constant thermal conductivity with temperature, and assumption of specimen homogeneity, led to slight differences between the measured and simulated results.

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