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Form #: 620-19A
There are many different refrigeration applications today. In most applications the system performs one of two functions - either it removes both heat and moisture from the air, or it removes heat while maintaining a certain level of moisture in the air. This chapter will examine various mixtures of air.
Form #: 620-20
This chapter explains the use of a psychrometric calculator. If any two properties are given, you can use the psychrometric calculator to obtain all other properties with reasonable accuracy. Occasionally you will have to make some visual interpolations (estimates), but no calculations are required, because the calculator does the work for you automatically.
Form #: 620-22
This chapter covers the question, “WHY HUMIDIFY?” Some of the subjects covered: WHAT INDOOR RELATIVE HUMIDITY IS CORRECT?; EFFECTS OF EXCESSIVELY HIGH HUMIDITY; EFFECTS OF EXCESSIVELY LOW HUMIDITY; THE PSYCHROMETRIC CHART; HOW RELATIVE HUMIDITY IS MEASURED; HUMIDIFICATION AND HUMIDIFIERS.