Development and validation of a three dimensional thermal transient numerical model with sun patch: Application to a low energy cell

Rodler, Auline; Virgone, Joseph; Roux, Jean-Jacques; Hubert, Jean-Luc

doi:10.1016/j.enbuild.2014.11.031

Cited by 13 publications

(6 citation statements)

References 13 publications

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“…The HSR cabin ventilation model has been validated in the author’s previous publication. 17 Here, the radiation model was validated using Rodler’s experimental data 21 and Gendelis’s simulation results. 22…”

Section: Resultsmentioning

confidence: 99%

“…The HSR cabin ventilation model has been validated in the author's previous publication. 17 Here, the radiation model was validated using Rodler's experimental data 21 and Gendelis's simulation results. 22 Rodler's experiment was carried out in a thermal test building at the BESTLab (Building Envelop and Solar Technology Laboratory), which is located in 48 22 0 N 249 0 E. The model represents a single room with 2.97 m in depth, 2.89 m in width and 2.82 m in height.…”

Section: Validation Of Numerical Modelmentioning

confidence: 99%

“…CFD models and numerical procedures for HSR cabin simulations were developed. Based on previous simulation and experimental results, 21,22 the solar radiation model was numerically examined. The typical thermal comfort index models, Fanger’s model and percentage dissatisfied (PD) due to draught model were coupled with the CFD simulation to evaluate the thermal environment around passengers.…”

Section: Introductionmentioning

confidence: 99%

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Thermal comfort analysis of a high-speed train cabin considering the solar radiation effects

Yang

2019

Indoor and Built Environment

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Due to the fast development of high-speed rail (HSR) around the world, high-speed trains (HSTs) are becoming a strong competitor against airliners in terms of long-distance travel. Compared with airliner cabins, HST cabins have much larger window sizes. When the big windows provide better lighting and view of the scenery, they also have significant effects on the thermal conditions in the cabins due to the solar radiation through them. This study presents a numerical study on the solar radiation on the thermal comfort in a typical HST cabin. The effect of solar radiation was discussed in terms of airflow pattern, temperature distribution and thermal comfort indices. Parametric studies with seven different daytime hours were carried out. The effect of using the roller curtain was also studied. The overall cabin air temperature, especially near passengers, was found to have significantly increased by solar radiation. Passengers sitting next to windows were recorded to have an obvious thermal comfort variation at different hours of the day. To improve the passengers’ comfort and reduce energy consumption during hot weather, the use of a curtain could effectively reduce the solar radiation effect in the cabin environment.

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Section: Resultsmentioning

confidence: 99%

Section: Validation Of Numerical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermal comfort analysis of a high-speed train cabin considering the solar radiation effects

Yang

2019

Indoor and Built Environment

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“…Numerous studies concerning the combination of a passive solar building design along with a FHS have been conducted. For instance, Rodler et al (2014) validated a numerical model capable of reproducing the footprint of a sun patch on the floor and walls through an experimental work conducted at the French EDF BESTLab. The study showed that a convenient use of stored solar energy in the walls and floor enhances the overall building energy performances.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the effects of direct sun radiation on the dynamic thermal behavior of a floor-heating system

et al. 2020

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“…Depending on the positions of the window and the sun, there are 20 cases of figures and each of them has an explicit and distinct equation. Authors in [14][15][16][17][18][19][20] modelled and counted the SSA for a cell oriented to the west and located in Paris. The localization is verified by the application of a membership test whose principle is to verify the inclusion or not of the projections of the centers of the meshes on a plane perpendicular to the rays of the sun in the polygon resulting from the projection of the window on the same plan.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Simulation Approach for Sunspot Area Calculation

Saadi

Chaker

2018

Eng. Technol. Appl. Sci. Res.

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The aim of this paper is the numerical simulation of the sunspot area (SSA) and its location on the walls and on the floor of a room with a single window facing south. The input parameters of the calculation code are the geometry of the cell located in the site of Ksar Challala (35.1 N, 2.19 E, 800 m) in Algeria for the 21st of March, June and December. The SSA is a function of the window’s area, the date and time, the orientation of the room, the altitude and the azimuth of the sun. The obtained results show that the western wall is affected by the sun in the morning, the eastern wall in the afternoon, the floor and the north wall in the middle of the day. By increasing the window area from 1 m2 to 2 m2 we found that the SSA increases considerably.

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Development and validation of a three dimensional thermal transient numerical model with sun patch: Application to a low energy cell

Cited by 13 publications

References 13 publications

Thermal comfort analysis of a high-speed train cabin considering the solar radiation effects

Thermal comfort analysis of a high-speed train cabin considering the solar radiation effects

Experimental study on the effects of direct sun radiation on the dynamic thermal behavior of a floor-heating system

A Numerical Simulation Approach for Sunspot Area Calculation

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