eastern climate, energy-recovery wheels are
more energy efficient than run-around coils.
Run-around coils have limited energy impact
because of added pump energy and the air-side
pressure drop across coils. The result is added
maintenance and glycol handling.
So, should a lab project undergo commissioning? Is commissioning worth the extra expense?
Yes, commissioning will confirm proper operation
of systems before acceptance of the building and
will eliminate any issues that could result in time
and effort spent to correct issues or potentially
affect production. Investing a little more time in
verification can save a lot more time, trouble and
money in the long run.
David Wilson, PE, LEED AP, is a Master Engineer at SSOE Group ( www.ssoe.com), a global
engineering, procurement and construction
management firm. With 23 years of experience,
David is a senior-level mechanical engineer with
extensive design, engineering and commissioning
At a U.S. government building, a commissioning enhancement list on a supplemental
geothermal HVAC concept included the
following cost-saving recommendations:
• Air-handling units located in the attic
should have thicker insulation thickness downstream of cooling coils to prevent condensation on unit exterior in the unconditioned
attic space. Using speed tracking of supply to
control the speed of a return fan doesn’t necessarily maintain building pressure. Controlling
the fan based on airflow measurements or
building static pressure provides more precise,
• Providing an end-of-loop bypass piping
with a circuit setter on each floor will provide
continuous heating flow to allow faster response on call for heat.
• Providing energy-recovery wheels for
lab exhaust in lieu of a glycol run-around
heat-recovery system will result in significantly
higher energy savings. In the warm South-
Should your project undergo
continued from page 11
project’s scope, those set points would’ve been
kept on file and easily accessible. The item
would’ve paid for itself just in saved energy cost
The good news is the project’s documentation is now well ordered and easily accessible.
Any future up-fit floor construction will proceed more smoothly.
DESIGN REVIEW SYSTEM ENHANCEMENTS
The last case scenario ends this series on a
positive note. Commissioning can be particularly beneficial in the early planning stages for
geothermal heating and cooling systems, producing design improvements and cost savings
before construction even begins.
s30+ ARCHITECTURE SCHOOLS INTERESTED IN NCARB
A proposed framework for an alternative, integrated path to
becoming an architect, which could culminate in students
earning their architectural license at graduation, has drawn
interest from more than 30 institutions that offer accredited architectural degree programs, the National Council
of Architectural Registration Boards (NCARB) announced.
Thirty-eight universities with programs accredited by the
National Architectural Accrediting Board (NAAB) responded to
NCARB’s recent Request for Interest & Information regarding
the proposal for a rigorous, alternative path to licensure upon
graduation. The new path to licensure would integrate course
work required for an architectural degree with the rigorous
internship and examination requirements that aspiring architects must complete. This includes providing students with
opportunities to obtain real-world experience through the
Intern Development Program (IDP) and passing the Architect
Registration Examination (ARE). Of the schools that responded, 32 (representing 26% of institutions with NAAB-accredit-ed degree programs) declared interest in submitting a formal
proposal for consideration by NCARB’s Licensure Task Force.
The task force will consider the proposals in June.
s INSTITUTE FOR SUSTAINABLE INFRASTRUCTURE,
SKANSKA ANNOUNCE PARTNERSHIP
The Institute for Sustainable Infrastructure (ISI), a non-profit
501 (c) 3 organization that launched the Envision sustainable
infrastructure rating system for public and private owners, and
Skanska, one of the largest construction and development
companies in the country, announced a new U.S. partnership.
With the partnership, Skanska has committed to aligning the
delivery of heavy infrastructure civil projects with efforts to
ensure the social, economic and environmental sustainability of the communities where they are built. Within the new
partnership, ISI has agreed to provide opportunities for all
Skanska employees to receive training and credentialing in the
Envision Sustainability Professionals (ENV SPs) credentialing
program. When credentialed, these employees will be able
to document and rate sustainability aspects of infrastructure
projects in collaboration with ISI’s Envision infrastructure rating system.
s SMITHGROUPJJR, RIVER ARCHITECTS SELECTED TO DESIGN
UW-LA CROSSE SCIENCE FACILITY
The new $82 million instructional science facility at Univ. of Wis-consin-La Crosse will be designed by a collaboration of national
architecture and engineering firm SmithGroupJJR in association
with local partner River Architects. This project will provide a
complete replacement of Cowley Hall, the current UW-La Crosse
science instruction facility built in 1965. The increased demand
for access to the allied health professions programs as well as
basic science, technology, engineering and mathematics (STEM)
courses required by other degree programs has greatly increased
pressure on the existing lab facilities. The intense use of the
facilities, coupled with Cowley Hall’s aged infrastructure, made it
increasingly problematic to accommodate students and deliver
instruction. The first phase of the project includes a new 180,000-
sf building located immediately north of Cowley Hall to house the
instructional and research labs for the university’s physical and
life sciences programs. Cowley Hall’s classrooms, lecture halls and
faculty offices will remain operational during construction of the
initial phase. The second phase of the building project will include
the demolition of Cowley Hall, to be replaced by a connected,
148,000-sf structure. It will satisfy the balance of the program
needs such as classrooms, collaborative learning spaces, offices,
conference rooms and other ancillary departmental and building
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