ASHRAE Journal - June 2011 - 3

CONTENTS 62 72

Vol. 53, No. 6|June 2011

Features

Standing Columns

26 38 42 50

Saving Energy in Lab Exhaust Systems System Effect: To Believe It Is to See It
By Sutton G. Page

By John J. Carter; Brad C. Cochran; and Jeff D. Reifschneider

68 72 78 82 86 90

Building Sciences

Seeing Red Over Green Roofs
By Joseph W. Lstiburek, Ph.D., P .Eng.

Solar NZEB Project
Solar Collection & Use
By Ty Newell; Ben Newell

What’s New in ASHRAE’s Standard on Comfort
By Stephen C. Turner, P .E.

HVAC Mythbuster

On the Path to Net Zero: How Do We Get There From Here?
By Gordon V.R. Holness, P .E.

Right-Sizing HVAC: It Can Be Just Plain Wrong

By Max Sherman, Ph.D.; Iain Walker, Ph.D.

Emerging Technologies
Home Envelope Retrofits
By Alissa Cooperman; John Dieckmann; James Brodrick, Ph.D.

2011 ASHRAE TECHNOLOGY AWARDS

62
4 6 14 16

Walls to Heat, Cool

By Heric D. Holmes, P .Eng.; Murdoch D. MacPherson, P .Eng.

IAQ Applications

Departments
Commentary Industry News Meetings and Shows Letters 91 93 94 96 Products People Classified Advertising Advertisers Index

Displacement Ventilation In Hospital Environments

By Yuguo Li, Ph.D.; Peter V. Nielsen, Ph.D.; Mats Sandberg, Ph.D.

Washington Report
Advancing Technology
By Mark Ames

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 - June 2011

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