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Numerical investigations of flow patterns and thermal comfort inside Al-Haram mosque in Makkah.

Number: pap. F04

Author(s) : JAAFAR R. K., MOHAMED T., KHALIL E. E., et al.

Summary

The air conditioning applications in mosques are considered as one of the important HVAC applications, which flow pattern and thermal comfort depend on the behavior of the airflow, the distributions of temperatures and relative humidity and concentration of carbon dioxide due to high occupancy load of people. The present work was concerned primarily with the analysis, simulation of the thermal comfort in a mosque. The paper is devoted to numerically investigate the influence of location and number of ventilation and air conditioning supply and extracts openings on air flow properties. The work focuses on air flow, thermal behavior and carbon dioxide dispersion where large number of people. The performance of the air conditioning system is characterized by airflow patterns, temperature, relative humidity contours and CO2 concentration as well as the most commonly used comfort parameters PMV and PPD based on Fanger's model. This is the main target during the present work. The results had shown the best case among the others cases when the supply and extract air from ceiling. The study is carried out using computational fluid dynamics (CFD) simulation techniques as embedded in the commercially available CFD code (ANSYS 15). The CFD modeling techniques solved the continuity, momentum and energy conservation equations in addition to RNG k – e model equations for turbulence closure. Mesh sizes used in present work exceeded 4.5 million approximately.

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Pages: 9

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Details

  • Original title: Numerical investigations of flow patterns and thermal comfort inside Al-Haram mosque in Makkah.
  • Record ID : 30022098
  • Languages: English
  • Source: 8th international conference on compressors and refrigeration, 2017.
  • Publication date: 2017/07/20

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