psychometrics introduction indexes psychometric chart introduction: psychometrics is the study of...

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHART

PSYCHOMETRIC CHART

INTRODUCTION:PSYCHOMETRICS IS THE STUDY OF MOIST AIR.

THE PSYCHOMETRIC CHART IS A GRAPHIC REPRESENTATION OF THE THERMODYNAMICS AND THERMAL PROPERTIES OF MOIST AIR.

THE LATENT HEAT IN WATER VAPOR IS THE LARGEST OF ANY COMMON LIQUID.

AS A RESULT, THE SMALL AMOUNT OF WATER VAPOR IN THE AIR MIXTURE OFTEN CONTAINS THE MAJOR PART OF THE TOTAL ENERGY OF THE MIXTURE.

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHART

PSYCHOMETRIC CHART

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

PSYCHOMETRIC CHART

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

WET-BULB TEMPERATURE:THE TEMPERATURE REGISTERED BY A THERMOMETER WHOSE BULB IS COVERED BY A WETTED WICK AND EXPOSED TO A CURRENT OF RAPIDLY MOVING AIR.

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

WET-BULB TEMPERATURE

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

DEW POINT TEMPERATURE:THE TEMPERATURE AT WHICH CONDENSATION OF MOISTURE BEGINS WHEN AIR IS COOLED.

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

DEW POINT TEMPERATURE

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

HUMIDITY RATIO:

THE AMOUNT OF WATER IN THE AIR AND IS MEASURED IN GRAINS (7000 GRAINS = ONE POUND) OR POUNDS PER POUND OF DRY AIR.

ALSO KNOW AS ABSOLUTE HUMIDITY.

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

HUMIDITY RATIO

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

RELATIVE HUMIDITY:THE RATIO OF THE ACTUAL WATER CONTENT TO THE MAXIMUM POSSIBLE MOISTURE CONTENT AT A GIVEN TEMPERATURE.

RELATIVE HUMIDITY IS EXPRESSED AS A PERCENTAGE.

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

RELATIVE HUMIDITY

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

SENSIBLE HEAT:HEAT ASSOCIATED WITH CHANGE IN DRY-BULB TEMPERATURE.

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

LATENT HEAT:HEAT ASSOCIATED WITH THE CHANGE OF STATE OF THE MOISTURE IN AIR.

LATENT HEAT OF VAPORIZATION IS APPROXIMATELY 1000 BTU/LB OF WATER.

WHEN MOISTURE IS CONDENSED FROM AIR, THE AIR IS REDUCING ITS LATENT HEAT.

WHEN MOISTURE IS EVAPORATED INTO THE AIR, THE AIR IS INCREASING ITS LATENT HEAT.

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

LATENT HEAT

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

ENTHALPY

ENTHALPY:A THERMAL PROPERTY INDICATING THE QUANTITY OF HEAT IN THE AIR EXPRESSED IN BTU/LB OF DRY AIR.

ENTHALPY REPRESENTS THE SUM OF THE LATENT AND SENSIBLE HEAT OF AIR.

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

ENTHALPY

PSYCHOMETRICS

INTRODUCTION

INDEXESDRY-BULB

WET-BULB

DEW POINT

HUMIDITY RATIO

RELATIVE HUMIDITY

SENSIBLE HEAT

LATENT HEAT

ENTHALPY

SPECIFIC VOLUME

PSYCHOMETRIC CHART

PSYCHOMETRIC CHART

SPECIFIC VOLUME:

SPECIFIC VOLUME IS THE RECIPROCAL OF DENSITY OR THE VOLUME/WEIGHT.

THESE LINES SHOW HOW THE DENSITY OF AIR VARIES AS ITS TEMPERATURE AND MOISTURE CONTENT VARIES.

SPECIFIC VOLUME IS A USEFUL QUANTITY IN AIR CONDITIONING CALCULATIONS .

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

HEATING & COOLING

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

HEATING

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

COOLING

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

DEHUMIDIFICATION BY COOLING

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

DEHUMIDIFICATION BY ABSORPTION

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

HUMIDIFICATION WITH STEAM

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

DETERMINING DEW POINT & WET-BULB TEMPERATURE

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

EVAPORATIVE COOLING

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

COMFORT ZONE

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

PASSIVE COOLING

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PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

PASSIVE COOLING

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. .

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

PASSIVE COOLING

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. . .

. . . .

. .

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

PASSIVE & ACTIVE HEATING

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PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

PASSIVE COOLING

. . .

. . . . . . .

. . .

. . . .

PSYCHOMETRICS

INTRODUCTION

INDEXES

PSYCHOMETRIC CHARTHEATING & COOLING

HUMIDITY

DEW POINT TEMPERATURE

WET-BULB TEMPERATURE

EVAPORATIVE COOLING

OTHER USES

PSYCHOMETRIC CHART SUMMARY