ASHRAE's '09 handbook covers green fundamentals

Engineers are being challenged to meet the ever-increasing demands

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The 2009 ASHRAE Handbook - Fundamentals covers basic principles and provides essential data for HVAC&R design.
The 2009 ASHRAE Handbook - Fundamentals covers basic principles and provides essential data for HVAC&R design.

As economies transition from being carbon-based to other forms of more sustainable energy, engineers are being challenged to meet an ever-increasing tide of regulation and demand. To assist the building environment industry in meeting this challenge, guidance on designing for effective energy resource use is highlighted in the newest edition of the ASHRAE Handbook.

The 2009 ASHRAE Handbook – Fundamentals covers basic principles and provides essential data for HVAC&R design. It includes more than 1,000 pages and 39 chapters on a variety of HVAC&R topics, covering general engineering information, basic materials, load and energy calculations and duct and pipe design. A new chapter on sustainability defines this concept for HVAC&R and describes the principles, design considerations, and detailed evaluations needed in designing sustainable HVAC&R systems.

“HVAC&R engineering design on projects concerned with performance and sustainability requires understanding of more than just HVAC&R,” argued Dave Grumman, who oversaw writing of the chapter on behalf of ASHRAE’s technical committee on building environmental impacts and sustainability.

“Engineers must consider projected energy and water demands, storm water run-off generation, waste generation and air-quality impacts. The guidance in this new chapter will assist engineers as they strive for overall sustainability in buildings,” explained Grumman.

The chapter covers characteristics of sustainability, factors impacting sustainability, primary HVAC&R considerations in sustainable design, factors driving sustainability into design practice and designing for effective energy resource use.

The 2009 ASHRAE Handbook is published in two editions, one containing inch-pound (I-P) units of measurement and the other containing the International System of Units (SI). For further information visit www.ashrae.org/bookstore.

REVISED CONTENTS OF ASHRAE 2009 HANDBOOK

Chapter 1: Psychometrics
Contains 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
Has been reorganised 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
Contains new climate data for 5,564 stations (an increase of 1,142 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 specialised door types.

Chapter 16: Ventilation and Infiltration
Contains new, detailed examples, updates from ASHRAE Standards 62.1 and 62.2, discussion of relevant LEED aspects, and new information on air-tightness and ventilation rates for commercial buildings.

Chapter 18: Non-Residential 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 harmonise 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, reorganised 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.

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