Herrmidifier Load Calculator User Manual
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L o a d C a l c u l a t i o n G u i d e
L o a d C a l c u l a t i o n G u i d e
2
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TABLE OF CONTENTS
SECTION I PREFACE
Preface ...........................................................................................................................................................3
SECTION II BASIC INFORMATION
Definition Of “Relative Humidity” ....................................................................................................................4
“Dry Air” From Heating ....................................................................................................................................4
“Dry Air” From Cooling ....................................................................................................................................4
The Psychrometric Chart ................................................................................................................................5
Equilibrium Moisture Content .........................................................................................................................5
“Regain” Of Hygroscopic Materials.................................................................................................................5
“Dry Air” And Comfort .....................................................................................................................................5
Humidity And Dust ..........................................................................................................................................6
Humidity And Its Effect On Bacteria And Virus Life ........................................................................................6
“Dry Air” And Static Electricity .........................................................................................................................6
“Dry Air” And Hygroscopic Materials ...............................................................................................................7
Woodworking And Humidification ...................................................................................................................8
Paper Products And Humidification ................................................................................................................8
Printing And Humidification.............................................................................................................................9
Textiles And Humidification .............................................................................................................................9
Food Storage, Processing And Humidification ...............................................................................................9
Leather Processing And Humidification ..........................................................................................................10
A Humidification Synopsis ..............................................................................................................................10
SECTION III LOAD CALCULATIONS
The Psychrometric Chart ................................................................................................................................11
Heating Load ..................................................................................................................................................12
Cooling Load ..................................................................................................................................................14
Product Load ..................................................................................................................................................15
Process Reduction .........................................................................................................................................16
People Reduction ...........................................................................................................................................16
SECTION IV TYPES OF EQUIPMENT
Atomization .....................................................................................................................................................17
Evaporation ....................................................................................................................................................19
Steam .............................................................................................................................................................19