ABSTRACT
Air is considered a compressible fluid and water a noncompressible fluid. Heating, ventilating and air conditioning a space using the fluids air, water, steam, and refrigerants. Fluid flow varying in velocity across the plane perpendicular to flow. Fluid flow in which the velocity varies in magnitude and direction in an irregular manner. The temperature which would result if the psychrometric process line were carried to the saturation condition of the leaving air while maintaining the same sensible heat ratio. Density is the weight of a substance per unit volume. Dew point is the temperature at which moisture will start to condense from the air. The wet bulb temperature of the air remains constant but the dry bulb temperature is decreased. The temperature difference between the dry bulb temperature and the wet bulb temperature. Wet bulb temperature is obtained by an ordinary thermometer whose sensing bulb is covered with a wet wick and exposed to rapidly moving air.
