Energy efficiency in buildings requires, among other things, that ventilation be appropriately dimensioned: too much ventilation wastes energy, and insufficient ventilation leads to poor indoor air quality and low comfort. Studies have shown that ventilation systems seldom function according to their commissioned design. They have also shown that airflow measurement results are essential in improving a ventilation system. This key handbook explains why ventilation in buildings should be measured and describes how to measure it, giving applied examples for each measurement method. The book will help building physicists and ventilation engineers to properly commission ventilation systems and appropriately diagnose ventilation problems throughout the life of a building. Drawing on over 20 years of experience and the results of recent international research projects, this is the definitive guide to diagnosing airflow patterns within buildings.
Table of Contents
Introduction * Airflow Rates in Buildings * Airflow Rates in Air Handling Units * Age of Air and Ventilation Efficiency * Airtightness * Measurements and Measures Related to Energy Efficiency in Ventilation * Contaminants in Air Handling Units * Common Methods and Techniques * References * Index
Claude-Alain Roulet, an international leader on the subject of the indoor environment quality and energy in buildings, is Adjunct Professor at the School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique fédéraleanne, Switzerland.
'A book we need: an excellent overview of the state of the art of measurement techniques applied to airflows in buildings and to ventilation systems, written by a real expert.' Professor Francis Allard, University of La Rochelle, France 'This book is unique. It cleverly demonstrates the appropriate techniques to measure the ventilation and energy efficiency of naturally and mechanically ventilated buildings. It also offers the background necessary for this investigation, covering procedures to improve its performance and the reporting of results. This is a valuable single-source reference not only for academics but for practitioners: a practical, useful source of knowledge.' Professor Fariborz Haghighat, Department of Building, Civil and Environmental Engineering, Concordia University, Canada 'A book we need: an excellent overview of the state of the art of measurement techniques applied to airflows in buildings and to ventilation systems, written by a real expert.' Professor Francis Allard, University of La Rochelle, France 'This book covers all of the important technical information for ventilation measurement. It is very useful for not only HVAC engineers but also researchers and university students.' Hiroshi Yoshino, Professor, Department of Architecture and Building Science, Tohoku University, Japan 'The technical information is presented in a clear and concise manner with all forms of detail calculations shown. Case studies are simple and useful. This book makes an excellent reference for calculating air flow and conditioning from first principles. It will make a good guide fior checking more issues. [...] All in all a very useful reference book for the technically literate.' Haico Schepers, Arup Engineers, Australia 'A thorough examination of the science behind natural ventilation and air flow in buildings... a very useful reference book.' Architectural Science Review 'There is a lot of work needed before good ventilation is wide spread. This book is an excellent start and if you have some technical responsibility for buildings please read it.' International Journal of Ambient Energy