Modeling of slab-on-grade heat transfer in EnergyPlus simulation program

Costa, Vanessa Aparecida Caieiro da; Roriz, Victor Figueiredo; Chvatal, Karin Maria Soares

doi:10.1590/s1678-86212017000300166

Cited by 5 publications

(2 citation statements)

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“…The results measured for a critical summer day indicated that while the external air temperature reached the maximum value of 43 ºC, the internal temperature of the upper deck registered about 40 ºC and the basement temperature reached the maximum value of 35 ºC. In Brazil, Costa, Roriz e Chvatal [6] compared different modeling alternatives of the parameters related to the heat transfer between the floor and the ground, and their influence in the thermal performance of a naturally ventilated single-story house, using the programs EnergyPlus/GroundDomain e EnergyPlus/Slab. The thermophysical properties of the soil were the data that had the most influence.…”

Section: Introductionmentioning

confidence: 97%

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Analysis of the influence of soil in the thermal performance of subterranean rooms in a ground-level building in Sao Paulo, Brazil, via EnergyPlus

Resende

Souza

Gomes

2020

Ingeniare. Rev. chil. ing.

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Among the several factors that interfere with the thermal performance of buildings, soil temperature is not always considered in thermal performance evaluations. However, soil temperature is a factor that influences the result of heat exchanges in the environment, especially in ground-level buildings. Thus, it is necessary to evaluate this influence due to the interaction of the soil with the building. In addition, due to the three-dimensional and transient character of the heat exchange processes involving the ground, the numerical approach becomes an important tool in the thermal performance analysis of buildings. In this respect, the software EnergyPlus emerges as an alternative to obtain such results, especially through the Basement preprocessor. Results suggest that, when the soil effect is considered in thermal analyses, the internal temperature of subterranean rooms increases up to 8.9% in the summer and decreases to 5.4% in winter. These results were obtained when compared to the initial situation, where soil influence had been neglected. Such results provide an indication of the importance of considering the soil influence on the thermal performance analyses where an accurate assessment is requested.

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Section: Introductionmentioning

confidence: 97%

“…The heat flow between the floor and the ground of a single-story building is one of the most influential aspects in its thermal and energy performance [6]. For this reason, basements must be conditioned to meet the same thermal comfort criteria as the other spaces on the upper floors of residences [1].…”

Section: Introductionmentioning

confidence: 99%