High Performing Buildings describes measured performance of
practices and technologies to promote better buildings, presenting
case studies that feature integrated building design practices and
improved operations and maintenance techniques.
Real Buildings | Real Data
1791 Tullie Circle N.E., Atlanta, GA 30329-2305
Phone: 404-636-8400, Fax: 404-321-5478
www.HPBmagazine.org, E-mail: HPBmagazine@ashrae.org
EDITORIAL ADVISORY BOARD
Lindsay Audin, Energywiz
David Grumman, P.E., Grumman/Butkus Associates
Sheila Hayter, P.E., National Renewable Energy Lab
Adam W. Hinge, P.E., Sustainable Energy Partnerships
Vivian Loftness, FAIA, Carnegie Mellon University
Kent Peterson, P.E., P2S Engineering
Kenneth Seibert, P.E., CMTA Consulting Engineers
Donald Winston, P.E.
EDITOR Jay Scott, email@example.com
MANAGING EDITOR Sarah Foster, firstname.lastname@example.org
ASSOCIATE EDITORS Rebecca Matyasovski, email@example.com
Christopher Weems, firstname.lastname@example.org
Jeri Alger, email@example.com,
Mary Kate McGowan, firstname.lastname@example.org
ASSIS TAN T EDITOR Tani Palefski, email@example.com
DESIGN Susan Carabetta, Carabetta Hayden Design
PUBLISHING SERVICES and CIRCULATION
PUBLISHING SERVICES MANAGER David Soltis
PRODUC TION Jayne Jackson
CIRCULATION SPECIALIS T Ann Morris, firstname.lastname@example.org
ASSOCIATE PUBLISHER, ASHRAE MEDIA ADVERTISING
Greg Martin, email@example.com
ADVERTISING PRODUCTION Vanessa Johnson, firstname.lastname@example.org
PUBLISHER W. Stephen Comstock
ISSN 1940-3003 (print) and 1940-3054 (digital)
Published Quarterly Copyright 2016 by ASHRAE, 1791 Tullie
Circle N.E., Atlanta, GA 30329-2305. Standard class
postage paid at Atlanta, Georgia, and additional mailing offices.
Subscriptions High Performing Buildings is free to qualified
subscribers. Nonqualified subscriptions cost $19 in the U.S. and
Canada and $31 outside the U.S. and Canada. Single copies are
$6 in the U.S. and Canada and $12 outside the U.S. and Canada.
Subscriptions can be completed at www.HPBmagazine.org/subscribe.
Postmaster Canadian Agreement Number 40037127. Canadian
return address: Station A, P.O. Box 54, Windsor, ON N9A 6J5.
Change of Address Send current address to High Performing
Buildings, P.O. Box 1254, Skokie, IL 60076 or visit
Customer Service Contact High Performing Buildings, P.O.
Box 1254, Skokie, IL 60076 or HPBsubscriptionmanagement@
Environmental Benefits Statement The pages of High Performing
Buildings are printed on Somerset Matte Recycled paper manufactured by Sappi Paper and Escanaba Matte Recycled manufactured
by NewPage. Environmental impact estimates were made using the
Environmental Defense Fund Paper Calculator. High Performing
Building saved the following resources by using Somerset Matte
Recycled and Escanaba Matte Recycled papers.
Wood Use Net Energy
Gases Wastewater Solid Waste
13 tons (89
8,443 lbs CO2
Publication Disclaimer ASHRAE does not necessarily agree with
any statement or opinion in this publication. 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.
Design of the new YKK headquarters started right before the March 2011 earthquake and tsunami in Japan. With the country reassessing its energy supply and its seismic
vulnerability in the disaster's aftermath, the owner and design team had
a chance to reconsider its approach to the new building, choosing an
integrated design process to optimize the whole building as a system.
A CASE STUDY IN THIS ISSUE focuses on their efforts to create one
of the highest performing office buildings in Tokyo. The authors write
that the project was important as a high-performing thermal, visual, and
energy design, and as a resilient design response to a natural disaster.
The building was completed in 2014.
The team agreed on a passive first approach, featuring a “sudare
screen,” or Japanese traditional blind, that was used over the entire
west-facing façade. It blocked and filtered direct solar gain while maintaining daylight and views. Daylighting was maximized by automatic
solar adjustment of the blind slats every 10 minutes.
With solar gain, daylighting, and lighting in place, a high-efficiency
HVAC system could be designed. A custom, radiant ceiling panel heating/cooling system was designed to facilitate integration of hot/cold
water piping with lighting and slight airflow. The airflow concept came
from the memory of a natural breeze under the shade of a tree.
THERMAL LOADS IN THE INTERIOR ZONE, where the temperature does
not significantly change, are met by the radiant ceiling panel system.
The variable thermal load near the exterior windows is met using an
active chilled beam.
Using a detailed three-dimensional building information model and
computational fluid dynamics, comfort verification of the radiant cooling system was confirmed during the design phase. Also, experiments
were conducted in a mock research laboratory to verify comfort in the
areas using the slight airflow. The mock-up research and lab experiment demonstrated compliance with ASHRAE Standard 55-2010.
While the initial investment was greater than that for a similar conventional office building, the authors write that a simple payback analysis shows the additional investment will be paid back in just under 11
years, assuming utility costs do not increase.
However, with a modest productivity gain of 5%, the 11-year payback
period would be less than two years, the authors state. They note that
much higher productivity increases have been documented in other
Enjoy the issue.