0.6 0.59 0.58 0.57 0.56 0.55 comparison of diameter of the duct Between the Software and the Calculated Duct equivelent diameter Software (m) equivelent Diameter Calculated (m) Figure 3-22 comparison of diameter of the duct Between the Software and the Calculated Duct Through these parametric studies, researchers gained valuable insights into the complex interactions between various factors influencing the ventilation system's performance. By systematically analyzing each parameter, they were able to refine the system design and optimize its operation to meet the specific requirements of the sports hall, ensuring optimal air quality and comfort for occupants. 3.6. CONCLUSION In summary, the components of a ventilation system, including fans, ductwork, dampers, and control systems, work together to ensure effective air circulation, temperature regulation, and air quality management within indoor spaces. Also, delved into the intricacies of ventilation system design, employing parametric studies and fundamental equations to elucidate key relationships governing system performance. Through comprehensive analyses, the chapter underscored the importance of various parameters on ventilation efficacy. The parametric studies revealed proportional expansions in exhaust flow, duct area, and pressure drop, highlighting the direct correlations between factors such as occupancy, room size, duct dimensions, and system resistance Prresure Drop (Pa) Variation of pressure drop (Pa) as Length of Duct Varies in (m) 350 275 300 242 250 250 200 150 100 50 300 308 0 50 55 70 85 90 Lenght of Duct (m) pressure drop (Pa) Figure 3-21 Variation of pressure drop (Pa) as Length of Duct Varies in (m) This finding underscores the direct correlation between duct length and pressure loss in ventilation systems. With a longer duct length, there is an increased resistance to airflow due to friction and turbulence within the duct, resulting in a higher pressure drop. Thus, the proportional expansion in pressure drop aligns with the increased duct length, highlighting the importance of considering duct design and layout to minimize pressure losses and optimize ventilation system performance. To compare equivalent duct sizes calculated by duct sizer tools and fluid dynamics equations, Calculate the equivalent duct diameters using standard duct sizing tools and independently with fluid dynamics equations. Finally, compare the results, noting any small discrepancies in mass flow rates to ensure design accuracy (Figure 3-22).