Relative humidity : sensors, management and environmental effects / John M. Castillo, editor.

Format:

Book

Contributor:

Castillo, John M.

Series:

Environmental science, engineering and technology series.

Environmental science, engineering and technology

Language:

English

Subjects (All):

Humidity.

Water vapor, Atmospheric.

Physical Description:

1 online resource (256 p.)

Edition:

1st ed.

Place of Publication:

New York : Nova Science Publishers, c2011.

Language Note:

English

Summary:

Relative humidity is a term used to describe the amount of water vapour that exists in a gaseous mixture of air and water vapour. This book presents research in the study of relative humidity, including humidity-sensitive and non-ohmic tin dioxide ceramics; optics of airborne particles under elevated humidity conditions; and, more.

Contents:

Intro

RELATIVE HUMIDITY SENSORS, MANAGEMENT AND ENVIRONMENTAL EFFECTS

CONTENTS

PREFACE

Chapter 1 ANALYSIS OF LOW-LEVEL TEMPERATURE INVERSIONS IN SOME OF GCC COUNTRIES: DEVELOPING A TEMPLATE FOR CHARACTERIZATION OF LONG TERM ANALYSIS OF CLIMATE CHANGE AND GLOBAL WARMING IN THE REGION

ABSTRACT

1. INTRODUCTION

2. PREVIOUS LITERATURE PREVIEW

3. METHODOLOGY

3.1. Selection of Observing Stations

3.2. Experimental Design

3.3. Statistical Analysis of Data Collection

3.4. Determination of Inversion Parameters

4. RESULTS

4.1. Analysis of Thermal Inversions in Saudi Arabia (Station NO. 40416)

4.1.1. Inversion frequencies

4.1.2. Inversion height

4.1.3. Inversion depth

4.1.4. Inversion strength

4.2. Analysis of thermal inversions in Saudi Arabia (Station NO. 40417)

4.2.1. Inversion frequencies

4.2.2. Inversion height

4.2.3. Inversion depth

4.2.4. Inversion strength

4.3. Analysis of thermal inversions in Saudi Arabia (Station NO. 41024)

4.3.1. Inversion frequencies

4.3.2. Inversion height

4.3.3. Inversion depth

4.3.4. Inversion strength

4.4. Analysis of Thermal Inversions in Kuwait (Station NO. 40582)

4.4.1. Inversion frequencies

4.4.2. Inversion height

4.4.3. Inversion depth

4.4.4. Inversion strength

4.5. Analysis of Thermal Inversions in the United Arab Emirates (Station NO. 41217)

4.5.1. Inversion frequencies

4.5.2. Inversion height

4.5.3. Inversion depth

4.5.4. Inversion strength

4.6. Analysis of Thermal Inversions in Oman (Salalah Station NO. 41316)

4.6.1. Inversion frequencies

4.6.2. Inversion height

4.6.3. Inversion depth

4.6.4. Inversion strength

CONCLUSION

REFERENCES

Chapter 2 EVAPORATION AND EVAPOTRANSPIRATION, THEORY AND ASSESSMENT METHODS.

INTRODUCTION

PHYSICS OF EVAPORATION

Atmospheric Factors

The Energy Requirement for Evaporation

The Mechanism of Transferring Vapor to the Atmosphere

Potential Evapotranspiration

Plant Factors

Soil Factor

THE NATURE OF THE EVAPORATING SURFACE

APPLICATIONS OF EVAPORATION STUDIES

Spatial Scale in Evaporation Studies

Time Scale in Evaporation Studies

Evaluation of Evaporation

Measurement of Evaporation

Measurement of Evapotranspiration

Estimation of Evaporation

Estimation of Evaporation by Modeling Based on Physics of Evaporation

The Water Balance Method

The Eddy Correlation Method

The Energy Balance Method

The Aerodynamic or Profile Method

The Combination Method

Estimation of Evaporation Based on Statistical Regression Models

Using Remote Sensing Data to Evaluate Evaporation

SOLAR RADIATION MODELING

ESTIMATING GLOBAL RADIATION ON THE SURFACE

MODELING OF NET RADIATION OVER A TERRAIN SURFACE

Theory of Calculating Net Radiation

Calculating Evapotranspiration Based on Energy Balance Method

A Case Study for Spatially Analysis of Evaporation

Actual Evaporation

Chapter 3 HUMIDITY-SENSITIVE AND NON-OHMIC TIN DIOXIDE CERAMICS

2. EXPERIMENTAL DETAILS

3. HUMIDITY AND ELECTRIC FIELD DEPENDENCE OF CONDUCTIVITY IN OXIDE CERAMICS

3.1. MgCr2O4-TiO2 Ceramics

3.2. SnO2 -Based Ceramics with Non-Ohmic and Humidity-Dependent Conduction

4. ELECTRICAL CONDUCTION IN SEMICONDUCTOR WITH GRAIN-BOUNDARY BARRIERS

4.1. Simplified Analysis of Conductivity versus Humidity Behavior

4.2. Electrical Conduction in Oxide Ceramics in Ohmic Region and in Dry Air

4.3. Electrical Conduction in Oxide Ceramics in Humid Air and in Ohmic Region

4.4. Non-Ohmic Conduction in Oxide Ceramics in Dry Air.

4.5. Non-Ohmic Conduction in Oxide Ceramics in Humid Air

ACKNOWLEDGMENTS

Chapter 4 OPTICS OF AIRBORNE PARTICLES UNDER ELEVATED HUMIDITY CONDITIONS

2. AEROSOL PARTICLES UNDER ELEVATED HUMIDITY CONDITIONS

3. OPTICAL BEHAVIOR OF SINGLE PARTICLES

4. MODELING THE BULK OPTICAL PROPERTIES OF AEROSOL ENSEMBLES

5. DIFFUSE AND DIRECT SOLAR RADIATION IN PLAN-PARALLEL TURBID ATMOSPHERE

ACKNOWLEDGMENT

Chapter 5 EFFECTS OF HEAT STRESS ON REPRODUCTIVE EFFICIENCY IN HIGH PRODUCING DAIRY COWS

2. MEASURING HEAT STRESS

3. EFFECT OF CLIMATE FACTORS ON FERTILITY AND OVARIAN DISORDERS

4. EFFECT OF CLIMATE FACTORS ON PREGNANCY LOSS

a) Early Foetal Loss

b) Late Pregnancy Loss

Chapter 6 MOLDS IN BUILDING MATERIALS OF AGRA (INDIA) AT VARIOUS HUMIDITY CONDITIONS

INTRODUCTION

MATERIALS AND METHODS

Method of Sampling

Quantitative Determination and Comparison of Population

DIRECT PLATING METHOD

Tropical Chamber Test

RESULTS AND DISCUSSION

Isolation of Molds from Monuments

Analysis of Deteriorated Stone Samples

Pattern of Deterioration

Chapter 7 RELATIONSHIPS BETWEEN TIME OF WETNESS, RELATIVE HUMIDITY, TEMPERATURE AND CORROSION OF METALS IN TROPICAL LOW-POLLUTED ATMOSPHERES

FIELD EXPOSURE

ENVIRONMENTAL DATA AT EXPOSURE SITES

CORROSION RATES

STATISTICAL ANALYSIS FOR CARBON STEEL

STATISTICAL ANALYSIS FOR GALVANISED STEEL

Chapter 8 REVIEW OF RELATIVE HUMIDITY MANAGEMENT AND ITS ENVIRONMENTAL EFFECTS

1. INTRODUCTION TO TEMPERATURE AND RELATIVE HUMIDITY CONTROL METHODS.

2. MATERIALS AND METHODS TO STUDY THE RELATIVE HUMIDITY AND ITS EFFECTS

3. RESULTS AND DISCUSSION

3.1. Indoor Air and Health Effects: A Practical Case Study of Flats

3.2. Indoor Air and Energy Saving: A Practical Case Study of Offices and Schools Buildings

3.3. Indoor Air and Materials Conservation: A Practical Case Study of Libraries

3.4. Indoor Air and Work Risk: A Practical Case Study of Industrial Environment

3.5. Indoor Air and Its Therapeutic Effect: A Practical Case Study of a Spa

Chapter 9 RELATIVE HUMIDITY: SENSORS, MANAGEMENT AND ENVIRONMENTAL EFFECTS IN A SPA

2. MATERIALS AND METHODS

2.1. Building

2.2. Indoor Air Temperature and Relative Humidity

2.3. Local Thermal Comfort Models

3.1. Pool Water and Air Temperature

3.2. Perceived Air Quality and Expected Percentage of Dissatisfied

3.3. Energy Saving

Chapter 10 MEASUREMENTS OF WATER UPTAKE PROPERTY OF ATMOSPHERIC AEROSOLS AT ELEVATED RELATIVE HUMIDITY

METHODS

Chapter 11 MOISTURE BUFFERING CAPACITY OF HYGROSCOPIC MATERIALS

2. MATERIALS AND METHODOLOGIES

2.1. Materials

2.2. Experimental Facility

2.3. Numerical Investigations

3. RESULTS

3.1. Dynamic Characterization

3.2. Effect of Thickness and Material's Properties

Chapter 12 RELATIVE HUMIDITY MODELED BY A FUNCTIONAL NETWORK

2. HUMIDITY

2.1. Specific Humidity (ω or rh)

2.2. Relative Humidity (φ)

3. COMPARISON BETWEEN A NEURAL NETWORK AND A FUNCTIONAL NETWORK.

4. ELEMENTS OF A FUNCTIONAL NETWORK

5. EXPERIMENTAL RESULTS

INDEX.

Notes:

Description based upon print version of record.

Includes bibliographical references and index.

Description based on print version record.

ISBN:

9781611221107

1611221102

OCLC:

847412288