ASHRAE Journal - February 2011 - 3

CONTENTS 18
Features

Vol. 53, No. 2|February 2011

50
50 62 70 86 92
76 People 91 Products

62
Standing Columns
Building Sciences
Parapets: Where Roofs Meet Walls
By Joseph W. Lstiburek, Ph.D., P .Eng.

18 26 44 34

Thermal Coupling of Cooling And Heating Systems
By Andy Pearson, Ph.D., CEng.

10 Common Problems in Energy Audits
By Ian Shapiro, P .E.

Solar NZEB Project
Ground Heat Transfer
By Ty Newell; Ben Newell

A Guide to Wireless Technologies
By Patrick Harder

Emerging Technologies
AC Capacity Modulation
By John Dieckmann; James Brodrick, Ph.D.

Hall of Fame History of the Changing Concepts In Ventilation Requirements
By A.K. Klauss; R.H. Tull; L.M. Roots; J.R. Pfafflin

Commissioning
By Evan Mills, Ph.D.

Capturing the Potential

Special Section
78 InfoCenter

Washington Report
Training Act Is Law
By Mark Ames

Departments
4 Commentary 6 Industry News 8 Letters 16 Meetings and Shows 93 Classified Advertising 96 Advertisers Index

ASHRAE® Journal (ISSN 0001-2491) MISSION STATEMENT | ASHRAE Journal reviews current HVAC&R technology of broad interest through publication of application-oriented articles. ASHRAE Journal’s
editorial content ranges from back-to-basics features to reviews of emerging technologies, covering the entire spectrum of professional interest from design and construction practices to commissioning and the service life of HVAC&R environmental systems. PUBLISHED MONTHLY | Copyright 2011 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., 1791 Tullie Circle N.E., Atlanta, GA 30329. Periodicals postage paid at Atlanta, Georgia, and additional mailing offices. LETTERS/MANUSCRIPTS | Letters to the editor and manuscripts for publication should be sent to: Fred Turner, Editor, ASHRAE Journal, fturner@ashrae.org. SUBSCRIPTIONS | $8 per single copy (includes postage and handling on mail orders). Subscriptions for members $6 per year, included with annual dues, not deductible. Nonmember $79 (includes postage in USA); $79 (includes postage for Canadian); $149 international (includes air mail). Expiration dates vary for both member and nonmember subscriptions. Payment (U.S. funds) required with all orders. CHANGE OF ADDRESS | Requests must be received at subscription office eight weeks before effective date. Send both old and new addresses for the change. ASHRAE members may submit address changes at www.ashrae.org/address. POSTMASTER | Send form 3579 to: ASHRAE Journal, 1791 Tullie Circle N.E., Atlanta, GA 30329. Canadian Agreement Number 40037127. ONLINE at ASHRAE.org | Feature articles are available online. Members can access articles at no cost. Nonmembers may purchase articles at www.ashrae.org/bookstore. | CUSTOM ARTICLE REPRINTS | Reprints are available from The YGS Group, call 800-290-5460 or Email ASHRAEreprints@theYGSgroup.com. MICROFILM | This publication is microfilmed by National Archive Publishing Company. For information on cost and issues available, contact NAPC at 800-420-NAPC or www.napubco.com. PUBLICATION DISCLAIMER | ASHRAE has compiled this publication with care, but ASHRAE has not investigated and ASHRAE expressly disclaims any duty to investigate any product, service, process, procedure, design or the like which may be described herein. The appearance of any technical data, editorial material or advertisement in this publication does not constitute endorsement, warranty or guarantee by ASHRAE of any product, service, process, procedure, design or the like. ASHRAE does not warrant that the information in this publication is free of errors and ASHRAE does not necessarily agree with any statement or opinion in this publication. The entire risk of the use of any information in this publication and its supplement is assumed by the user.

ASHRAE Journal - February 2011

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