Calculation of natural ventilation and comfort
Natural ventilation can be used to greatly reduce cooling loads and increase human comfort in buildings in hot, humid climates. Airflow rates directly affect a building's heat balance by removing internal gains and directly affect comfort levels by increasing the body's convective and evaporative heat-transfer coefficients; these airflow rates are determined by the wind pressure on the faces of the building (which is calculated from the wind speed and pressure coefficient) and the amount of open area. Wind pressure coefficients can be obtained in three ways: (1) by direct field measurement, (2) by scale-model experiments in a wind-tunnel, and (3) by comparison with standard wind-tunnel data. Measurements made on two buildings at the Kaneohe Marine Corps Air Station (KMCAS) on the island of Oahu, Hawaii, during the summer of 1982 are described. These full-scale measurements of pressure coefficients will be compared to reduced-scale measurements made at the the boundary-layer wind-tunnel at the Naval Civil Engineering Laboratory (NCEL). Estimates of the indoor comfort levels for different window conditions will be used as a basis for determining the acceptability of natural ventilation for cooling.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5157841
- Report Number(s):
- LBL-16036; CONF-840124-6; ON: DE84009215
- Country of Publication:
- United States
- Language:
- English
Similar Records
Field and wind-tunnel testing on natural-ventilation cooling effects on three Navy buildings. Final report, October 1982-September 1983
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Related Subjects
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
AIR FLOW
BUILDINGS
ENERGY TRANSFER
FLUID FLOW
GAS FLOW
HEAT TRANSFER
HUMIDITY
OPENINGS
SCALE MODELS
STRUCTURAL MODELS
THERMAL COMFORT
TUNNELS
UNDERGROUND FACILITIES
VELOCITY
VENTILATION
WIND
WIND TUNNELS
WINDOWS