COMPUTATIONAL FLUID DYNAMICES (CFD) OF THERMAL COMFORT IN UNIVERSITY LIBRARY ENVIRONMENT
Hassan Ahmed Yasen Ali;
Abstract
The present thesis work is concerned primarily with the analysis and simulation of the thermal comfort and indoor air quality in a Library.
The research is approved available using computational fluid dynamics (CFD) simulation techniques as embedded in the commercially available CFD code (ANSYS 19). The CFD showing techniques solved the continuity, momentum and energy conservation equations in addition to RNG k – ε model equations for turbulence closure. Mesh sizes used in present work is 4.5 million approximately.
The thesis has been devoted to numerical investigation into the effect of the air throw angle, Air Change Rate (ACH), as well as numbers, positions and dimensions of air extract grilles on the eighteen configurations. The results had shown the best configuration among the other configurations when eleven supply grilles distributed uniformly on ceiling with angle of throwing air is (15º) with horizontal, and four extract grilles distributed uniformly on the edges of the ceiling, at ACH=6. The numerical predictions included; temperature and velocity distributions, humidity, Predictive Mean Vote (PMV), Predicted Percentage Dissatisfied (PPD), CO2 concentration.
The research is approved available using computational fluid dynamics (CFD) simulation techniques as embedded in the commercially available CFD code (ANSYS 19). The CFD showing techniques solved the continuity, momentum and energy conservation equations in addition to RNG k – ε model equations for turbulence closure. Mesh sizes used in present work is 4.5 million approximately.
The thesis has been devoted to numerical investigation into the effect of the air throw angle, Air Change Rate (ACH), as well as numbers, positions and dimensions of air extract grilles on the eighteen configurations. The results had shown the best configuration among the other configurations when eleven supply grilles distributed uniformly on ceiling with angle of throwing air is (15º) with horizontal, and four extract grilles distributed uniformly on the edges of the ceiling, at ACH=6. The numerical predictions included; temperature and velocity distributions, humidity, Predictive Mean Vote (PMV), Predicted Percentage Dissatisfied (PPD), CO2 concentration.
Other data
| Title | COMPUTATIONAL FLUID DYNAMICES (CFD) OF THERMAL COMFORT IN UNIVERSITY LIBRARY ENVIRONMENT | Other Titles | ديناميكا الموائع الحسابية للراحة الحرارية في بيئة مكتبية جامعية | Authors | Hassan Ahmed Yasen Ali | Issue Date | 2019 |
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