CHAPTER 64 INDOOR ENVIRONMENTAL CONTROL Jerald D. Parker F. C. McQuiston Professors Emeritus Oklahoma State University Stillwater, Oklahoma MOIST AIR PROPERTIES AND CONDITIONING PROCESSES Properties of Moist Air The Psychrometric Chart Space Conditioning Processes Human Comfort SPACEHEATING Heat Transmission in Structures Design Conditions Calculation of Heat Losses Air Requirements Fuel Requirements SPACECOOLING Heat Gain, Cooling Load, and Heat Extraction Rate . | CHAPTER 64 INDOOR ENVIRONMENTAL CONTROL Jerald D. Parker F. C. McQuiston Professors Emeritus Oklahoma State University Stillwater Oklahoma MOIST AIR PROPERTIES Design Conditions 1989 AND CONDITIONING PROCESSES Properties of Moist Air The Psychrometric Chart Space Conditioning Processes Human Comfort 1973 1973 1974 1975 1979 Calculation of Heat Gains Air Requirements Fuel Requirements AIR-CONDITIONING EQUIPMENT Central Systems Unitary Systems 1989 1990 1991 1991 1991 1995 SPACE HEATING Heat Transmission in Structures Design Conditions Calculation of Heat Losses Air Requirements Fuel Requirements 1982 1982 1985 1986 1987 1987 Heat Pump Systems ROOM AIR DISTRIBUTION Basic Considerations Jet and Diffuser Behavior BUILDING AIR DISTRIBUTION 1996 1997 1997 1998 2000 SPACE COOLING Heat Gain Cooling Load and Heat Extraction Rate 1988 1988 Fans Variable-Volume Systems 2000 2003 MOIST AIR PROPERTIES AND CONDITIONING PROCESSES Properties of Moist Air Atmospheric air is a mixture of many gases plus water vapor and countless pollutants. Aside from the pollutants which may vary considerably from place to place the composition of the dry air alone is relatively constant varying slightly with time location and altitude. In 1949 a standard composition of dry air was fixed by the International Joint Committee on Psychrometric Data as shown in Table Table Composition of Dry Air7 Constituent Molecular Mass Volume Fraction Oxygen Nitrogen Argon Carbon dioxide Mechanical Engineers Handbook 2nd ed. Edited by Myer Kutz. ISBN 0-471-13007-9 1998 John Wiley Sons Inc. 1973 1974 INDOOR ENVIRONMENTAL CONTROL The molecular mass M of dry air is and the gas constant R is ft Ibf lbm R or 287 J kg K. The basic medium
