ASHRAE Journal - August 2008 - 3

CONTENTS Vol. 50, No. 8 | August 2008 20 Features 20 28 38 46 52 Maintain to Sustain—Delivering ASHRAE’s Sustainability Promise By Bill Harrison 28 60 72 76 80 By Carl H. Jordan Ca 52 Standing Columns Building Sciences ld Energy Flow Across Enclosures er By Joseph W. Lstiburek, Ph.D., P os .Eng. Ultraviolet Germicidal Irradiation: Current Best Practices By Stephen B. Martin Jr.; Chuck Dunn; James D. Freihaut; Pc Practical Pointers How Not to Smoke Test w Eme Emerging Technologies e Wireless for Controls: An Update re By Kurt Roth, Ph.D.; Ku is Louis Quartararo, P .E.; And James Brodrick, Ph.D. J Improving Humidity Control With Energy Recovery Ventilation By John Dieckmann Single- or Two-Stage Compression gl By Todd B. Jekel, Ph.D, P To .E.; and Douglas T. Reindl, Ph.D., P .E. Washington Report sh Building Caucus Formed ld By Ryan M. Colker Ry D Departments 5 6 17 18 66 74 81 82 85 88 Commentary Industry News Letters Meetings and Shows InfoCenter Products People Special Products Data Center Cooling: Using Wet-Bulb Economizers ta 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 2008 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 $59 (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 40064709. 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. 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. 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 - August 2008

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