Indoor Air Quality Engineering 1st Edition, ISBN-13: 978-1566706742
[PDF eBook eTextbook]
- 640 pages
- Publisher: CRC Press; 1 edition (August 30, 2004)
- Language: English
- ISBN-10: 1566706742
- ISBN-13: 978-1566706742
Indoor Air Quality Engineering covers a wide range of indoor air quality engineering principles and applications, providing guidelines for identifying and analyzing indoor air quality problems as well as designing a system to mitigate these problems. Structured into three sections – properties and behavior of airborne pollutants, measurement and sampling efficiency, and air quality enhancement technologies – this book uses real-life examples, design problems, and solutions to illustrate engineering principles. Professionals and students in engineering, environmental sciences, public health, and industrial hygiene concerned with indoor air quality control will find Indoor Air Quality Engineering provides effective methods, technologies, and principles not traditionally covered in other texts.
Airborne pollutants are present all the time and everywhere in the form of gases, odors, and particulate matter. These pollutants have an increasing influence on our daily life. In developed countries, an average working person spends over 90% of his or her lifetime indoors. Growing concerns about indoor air quality (IAQ) and apparently increasing incidences of IAQ-related illness in people has inspired many efforts in this area from industry, academia, the general public, and government agencies.
During my 10 years of teaching about indoor air pollutant measurement and control for a senior and graduate-level engineering class, one of the difficulties that I encountered was finding a suitable textbook. Although there is a considerable amount of literature on the topic and several books cover related topics (such as aerosol science and technology, industrial ventilation, and pollutant measurement instrumentation), there has been a need for a comprehensive textbook to cover the principles and applications of indoor air quality engineering. This book is intended to fill that need. Although this book is primarily written for engineering students and professionals, its principles and approach can be useful to individuals in industrial hygiene, environmental sciences, and public health who are engaged in the measurement and abatement of indoor air quality problems.
This book is an accumulation of my lecture notes. Its aim is to explain the principles in a direct way so that a reader can study them independently. An instructor using this book as a textbook may tailor the contents according to the designated credit hours. The 15 chapters can be divided into three modules:
• Airborne pollutant properties and behavior
• Measurement and sampling efficiency
• Air-cleaning engineering
The first module includes Chapter 1 through Chapter 6 and discusses the properties and mechanics of airborne pollutants, including gases and particulate matter. Properties include physical, chemical, and biological aspects of particulate and gaseous pollutants. Behavior includes particle mechanics, gas kinetics, diffusion, and transportation of pollutants. This module provides the science and is fundamental to identifying and analyzing problems of indoor air quality.
The second module, on measurement and sampling efficiency, includes Chapter 7 through Chapter 9. This module discusses airborne pollutant measurements, including particle impaction, gravitational settling, collection of pollutants by means of diffusion, particle sampling efficiency, and particle production rate in a ventilated airspace. It provides the tools for readers to collect air quality data, analyze a problem, and get ready for engineering solutions.
The third module consists of Chapter 10 through Chapter 15, which discuss IAQ control technologies. Air-cleaning technologies covered in this module include filtration, aerodynamic air cleaning, electrostatic precipitation, wet scrubbing, adsorption, and ventilation effectiveness. This module provides typical methods and technologies to solve IAQ problems.
For those who may choose this book as a textbook, I would like to share my own experience in using this material in my class. On average, one week’s course load (typically 3 lecture hours and a 1- to 2-hour laboratory exercise) corresponds to one chapter. Homework is given on a weekly basis. Depending on the availability of equipment, laboratory exercises can be based on chapters or can be arranged according to modules. Four laboratory topics and reports are required in my class:
• Airborne pollutant size distribution and particle statistics
• Concentration measurement and particle mechanics
• Sampling efficiency
• Air-cleaning technologies
In addition, the class is divided into several teams to work on different class projects. Many students have brought their own real-world projects into the class. For example, one team evaluated several types of commercial air cleaners from superstores and made suggestions for improvement.
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