Development of a Thermal Environment Analysis Method for a Dwelling Containing a Colonnade Space through Coupled Energy Simulation and Computational Fluid Dynamics

Tatsuhiro Yamamoto, Akihito Ozaki and Myonghyang Lee
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Tatsuhiro Yamamoto: Architecture and Equipment Engineering, Kurume Institute of Technology, Kurume 8300052, Japan
Akihito Ozaki: Graduate School of Human-Environment Studies, Kyushu University, Fukuoka 8190395, Japan
Myonghyang Lee: Department of Science and Engineering, Ritsumeikan University, Kusatsu 5258577, Japan

Energies, 2019, vol. 12, issue 13, 1-20

Abstract: In building design, several approaches have been proposed for coupling computational fluid dynamics (CFD) and energy simulation (ES) to perform analyses of thermal environments. The unsteady analysis of thermal environments within buildings containing offices and colonnade spaces is difficult to perform using an ES that represents the space with a single mass point, owing to excessive predictive heat loss; therefore, CFD has typically been used instead. Although it is possible to divide the space into zones using ES, it leads to excessive predicted heat loss and the prediction of heat movement due to the influence of strong air currents, such as those associated with air conditioners. This behavior is observed because these zones are not detailed mesh divisions. To solve these problems, we proposed a method for calculating the ratio of heat contribution to zones that were pre-divided using CFD followed by the distribution of the total thermal load calculated by ES. In this study, we proposed a method for coupling ES and CFD, which enabled the unsteady analysis of a thermal environment in a large space and verified its accuracy.

Keywords: ES; CFD; large space; heat loss (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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