ASHRAE Journal - February 2014 - 3

CONTENTS VOL. 56, NO. 2, FEBRUARY 2014

STANDING COLUMNS
34

28 ENGINEER'S NOTEBOOK

Restroom Exhaust Systems
By Steven T. Taylor, P.E.
42 BUILDING SCIENCES

How Buildings Stack Up
By Joseph W. Lstiburek, Ph.D., P.Eng.
42

49 HVAC APPLICATIONS

Conditioning Challenges:
Lobbies and Atriums

FEATURES

By Dan Int-Hout

Understanding Salaries
In the A/E Industry

58 DATA CENTERS

Is Software-Defined Data
Center Next Reality?

By Kate Allen, P.E.

By Donald L. Beaty, P.E.

Improving Operating Room
Contamination Control

62 IAQ APPLICATIONS

Ventilation, Crowds
And the Common Cold

By Jennifer A. Wagner, Ph.D.; Kevin J. Schreiber; Ralph Cohen, P.E.

Saving Energy With Cooling Towers
By Frank Morrison

By Yuexia Sun, Ph.D.; Jan Sundell, M.D.
68 ENERGY MODELING

New 90.1 and Modeling

Technical vs. Process Commissioning:
Design Phase Commissioning

By Jared A. Higgins, P.E.
74 REFRIGERATION APPLICATIONS

Rattling the Chain
By Andy Pearson, Ph.D., C.Eng.

By Dave McFarlane; Thomas Farmer, P.E.
SPECIAL SECTIONS
S1 ACREX India 2014 Show Guide
70

InfoCenter
DEPARTMENTS

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 2014 by ASHRAE, 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. 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.

4
6
9
10
76
79
80

FEBRUARY 2014

Commentary
Industry News
Letters
Meetings and Shows
Products
Classified Advertising
Advertisers Index

ashrae.org

ashraE JourNal

ASHRAE Journal - February 2014

Table of Contents for the Digital Edition of ASHRAE Journal - February 2014