ASHRAE Journal - August 2024 - 2

CONTENTS
August 2024
COLUMNS
16 HVAC Fundamentals
Dust Collector Design Demystifi ed
By Chris Jester, Caleb Deck
56
FEATURES
10 Empowering Our Workforce:
Building a Sustainable Future
By M. Dennis Knight
32 Leveraging Machine Learning to
Optimize Chiller Plant Controls
By Michael Berger
38 Using a Data Center Upgrades
Approach in Already Highly
Efficient Buildings
By Carlos Orlando Mejia, Maya Spalding-Fecher,
Bryon Krug, Joshua Bookstaver
46 Re-Optimizing Optimal Start &
Morning Warm-Up
By Hwakong Cheng, Paul Raftery, Pat Wendler
2024 ASHRAE TECHNOLOGY AWARDS
56 Achieving Net-Zero Energy Efficiency
And Wellness Goals
By Kevin Euga, Ben Hobbs, Josh Depp
60 Improved Indoor Air Quality, Energy
Efficiency at Community Health Clinic
By Corey Chinn, Keagen Cothern, Brandon Howell
Submissions: https://tinyurl.com/JournalSubmit
Archive: technologyportal.ashrae.org
Letters: letters@ashrae.org
Missing Issue: cservice@ashrae.org
22 IEQ Applications
IEQ's Future
Bridging Metrics and Health Outcomes
By John McKeon
28 Building Sciences
Dan Tanna Does Garages
By Joseph W. Lstiburek
72 Refrigeration Applications
What's in a Nomograph?
By Andy Pearson
Join Journal Assistant Editor Sara
Omer and Danielle Passaglia, senior
mechanical engineer at SmithGroup
and author of Lucy's Engineering
Adventure and Lucy Goes Green, as
they discuss ASHRAE's fi rst book series
for children and the intricacies of STEMfocused
youth outreach.
Did you know milk dust and fl our, among
other dusts, are explosive? Combustible
dusts require the use of dust collectors.
Chris Jester discusses the design
of these systems, including air
velocity and duct sizing, safety
considerations, motor requirements
and relevant codes.
DEPARTMENTS
4 Commentary
6 Meetings and Shows
64 Products
66 Info Center
70 Software Resources
71 Advertisers Index
Cover photo: David Strauss of David Strauss Photography
ASHRAE® Journal (ISSN 0001-2491) PUBLISHED MONTHLY | Copyright 2024 by ASHRAE, 180 Technology Parkway, Peachtree Corners, GA 30092. Periodicals postage paid at Atlanta, Georgia,
and additional mailing offices. SUBSCRIPTIONS | $12 per single copy (plus applicable shipping). Subscriptions for members $9 per year, included with annual dues, not deductible.
Nonmember $95 (includes postage in USA); $95 (includes postage for Canadian); $166 international (includes air mail). Expiration dates vary for both member and nonmember
sub scriptions. 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,
180 Technology Parkway, Peachtree Corners, GA 30092.
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.
2
ASHRAE JOURNAL ashrae.org A U G U ST 2 0 2 4
V O L U ME 66, N O.8
JOSEPH ROMEO

https://tinyurl.com/JournalSubmit http://technologyportal.ashrae.org http://www.ashrae.org/address http://www.ashrae.org

ASHRAE Journal - August 2024

Table of Contents for the Digital Edition of ASHRAE Journal - August 2024