Natural Ventilation Cooling of Buildings

摘要

Natural ventilation can reduce cooling loads and increase human comfort in buildings in hot and humid climates. This report presents design guidelines for: (1) comfort criteria, (2) weather analysis and suitability of site, (3) arrangement of buildings at site, (4) architectural characteristics of buildings, (5) methods of calculating human comfort and air changes per hour achieved by natural ventilation, (6) a complete set of pressure coefficients for simple buildings with different side ratios, (7) computer simulation of buildings cooled by natural ventilation, (8) a simple method of calculating effective temperatures and comfort bands, and (9) economic analysis of the project. Contents: Thermal Design Criteria for Human Comfort; Region and Site Selection; Ventilation Requirement Calculations using the Air Velocity Nomograph; Ventilation Requirement Calculations using the Air Change Method; The Influence of Obstructions on Airflow; Basic Design Considerations for Natural Ventilation Cooling of Buildings for Human Comfort (Hot-Humid Climates); Potential of Ventilation in Reducing Building Cooling Load.