ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc.
Scope
The 2009 ASHRAE Handbook??Fundamentals covers basic principles and data used in the HVACR industry. The ASHRAE Technical Committees that prepare these chapters strive not only to provide new information@ but also to clarify existing information@ delete obsolete materials@ and reorganize chapters to make the Handbook more understandable and easier to use. An accompanying CDROM contains all the volume's chapters in both I-P and SI units. This edition includes a new chapter (35)@ Sustainability@ which defines this concept for HVACR and describes the principles@ design considerations@ and detailed evaluations needed in designing sustainable HVACR systems. Also new for this volume@ chapter order and groupings have been revised for more logical flow and use. Some of the other revisions and additions to the volume are as follows: ? Chapter 1@ Psychrometrics@ has new information on the composition of dry air@ and revised table data for thermodynamic properties of water and moist air. ? Chapter 6@ Mass Transfer@ has added examples on evaluating diffusion coefficients@ and on heat transfer and moisture removal rates. ? Chapter 7@ Fundamentals of Control@ includes new content on dampers@ adaptive control@ direct digital control (DDC) system architecture and specifications@ and wireless control. ? Chapter 9@ Thermal Comfort@ has a new section on thermal comfort and task performance@ based on multiple new studies done in laboratory and office environments. ? Chapter 10@ Indoor Environmental Health@ was reorganized to describe hazard sources@ health effects@ exposure standards@ and exposure controls. New and updated topics include mold@ Legionella@ indoor air chemistry@ thermal impacts@ and water quality standards. ? Chapter 14@ Climatic Design Information@ has new climate data for 5564 stations (an increase of 1142 new stations compared to 2005 Fundamentals) on the CD-ROM accompanying this book. A subset of data for selected stations is also included in the printed chapter for convenient access. ? Chapter 15@ Fenestration@ has been revised to include new examples of solar heat gain coefficient (SHGC) calculations@ and new research results on shading calculations and U-factors for various specialized door types. ? Chapter 16@ Ventilation and Infiltration@ has new@ detailed examples@ updates from ASHRAE Standards 62.1 and 62.2@ discussion of relevant LEED? aspects@ and new information on airtightness and ventilation rates for commercial buildings. ? Chapter 18@ Nonresidential Cooling and Heating Load Calculations@ has been updated to reflect new ASHRAE research results on climate data and on heat gains from office equipment@ lighting@ and commercial cooking appliances. ? Chapter 20@ Space Air Diffusion@ has been completely rewritten to harmonize with related chapters in other volumes@ with major sections on fully mixed@ partially mixed@ stratified@ and task/ambient systems and the principles behind their design and operation. ? Chapter 21@ Duct Design@ has new data for round and rectangular fittings in agreement with the ASHRAE Duct Fitting Database@ as well as new content on duct leakage requirements@ spiral duct roughness@ and flexible duct pressure loss correction. ? Chapter 23@ Insulation for Mechanical Systems@ has added tables from ASHRAE Standard 90.1-2007@ and a new section on writing specifications. ? Chapter 24@ Airflow Around Buildings@ has added a detailed discussion on computational evaluation of airflow@ plus new references including updated versions of design standards and manuals of practice. ? Chapters 25@ 26@ and 27 carry new titles@ reorganized as chapters on Heat@ Air@ and Moisture Control Fundamentals@ Material Properties@ and Examples@ respectively@ with updated content throughout. ? Chapter 29@ Refrigerants@ has new content on stratospheric ozone depletion@ global climate change@ and global environmental characteristics of refrigerants. ? Chapter 30@ Thermophysical Properties of Refrigerants@ has updated data for R-125@ R-245fa@ R-170@ R-290@ R-600@ and R-600a. ? Chapter 36@ Measurement and Instruments@ has revised content on measurement of air velocity@ infiltration@ airtightness@ and outdoor air ventilation@ plus new information on particle image velocimetry (PIV) and data acquisition and recording. This volume is published@ both as a bound print volume and in electronic format on a CD-ROM@ in two editions: one using inchpound (I-P) units of measurement@ the other using the International System of Units (SI). Corrections to the 2006@ 2007@ and 2008 Handbook volumes can be found on the ASHRAE Web site at http://www.ashrae.org and in the Additions and Corrections section of this volume. Corrections for this volume will be listed in subsequent volumes and on the ASHRAE Web site.