New
construction projects are at their highest level since 2002, as processors
demand energy-efficient, environmentally friendly plants.

Wayne
Farms’ Decatur West further processing facility’s plant production equipment,
like these automated marination tanks, is fully integrated into the HMI
network, reducing manpower costs and increasing production efficiencies.
Source: Wayne Farms.
While
total food and beverage plant projects are down a tad (3.8%) compared to last
year, the good news is that new projects are up are by 28%, according to Food
Engineering’s 30th Annual Plant Construction Survey. FE’s editorial team
uncovered a total of 506 projects of $1 million or more underway, completed or
in the planning stages during 2006, including 203 new projects and 303
expansions and renovations. While expansions and renovation projects dropped by
16.5% compared to last year, it may be easier and sometimes less expensive for
food manufacturers to start from scratch rather than update or expand old
facilities. New process control systems, more energy-efficient equipment and better
designs can make a big difference in how a new plant fits its environment,
saves energy, reduces waste and meets sustainability initiatives. Today, being
“green” makes good business sense.
What concerns food processors the most in the construction of new facilities or
the renovation of existing plants? Several responses result but can be summed
up in one word: sustainability. Though it has many definitions, any sustainable
development project should be environmentally, economically, socially and
politically viable to be successful. The World Commission on Environment and
Development defines sustainable development as meeting the needs of the present
without compromising the ability of future generations to meet their own
need.
Forrest McNabb, senior vice president of Big-D Construction, says the site
selection process for new plants is more comprehensive than ever with location
being the most important factor along with long-term planning and
sustainability of the plant. “The key factors of security, safety, flexibility
and GMP (good manufacturing practices) continue to be at the top of every food
project’s top attributes,” he adds.
According to Darryl Wernimont, director at The Haskell Company, the site
selection process goes hand-in-hand with green design/construction, known most
commonly as LEED (Leadership in Energy and Environmental Design). He believes
that food processors today are looking for LEED-certified contractors.
According to Bill Sander, senior vice president and project manager of Hixson
Inc., while every processor has its own definition of sustainability, a vital
part of it is reducing energy usage and, therefore, reducing energy costs.
Alyssa Boudreau, marketing administrator with The Dennis Group, says processors
are willing to pay a little more for higher efficiency machinery when they see
a two- to three-year payback. She says privately held processors see the real
benefit of energy-efficient building and processes and implement them to get
real paybacks.
Additional energy savings, according to Wernimont, come from energy-efficient
roof systems, mechanical and electrical devices and lighting systems;
constructed wetlands; Xeriscape and recycled materials (building materials,
carpets and wall structures); water-efficient equipment and devices (e.g.,
waterless urinals, new irrigation technologies, etc.) and sustainable site
development.
Another key issue in sustainability is sanitation, and Boudreau says an additional
CIP system or a central sanitizer can increase a plant’s overall level of
sanitation for a small incremental cost. Adding slopes to floors keeps
wastewater flowing to the drainage system. Brian Kappele, vice president of
process construction at Stellar, says his customers are placing a greater
emphasis on sanitary design in new structures. For example, there has been a
trend to use stainless steel tapped couplings as standoffs to wall-mounted
equipment. In addition, he reports there is a focus on providing hygienic
airflow and sanitation stations at critical points, segregating them from
non-process areas with knee- and/or sensor-operated equipment. Processors have
also been spending more money to solve condensation, microbial and allergen
problems.

Fieldale
Farms RTE chicken plant in Gainesville, GA, features designed-in bio security,
food safety and security functions with customer needs and in-house management
beginning at the front entrance. Source:
Vaughn, Coltrane, Pharr & Associates.
Getting a grip on energy
Energy
conservation begins with the plant’s interior environment. David Dixson,
Middough project director, says energy costs can be lowered in new designs by
increased use of building management systems, better HVAC controls to
accommodate daily and weekly shifts and motion sensors to turn on lighting when
needed. Building orientation, construction materials, mechanical system design,
alternate energy sources (wind, solar, etc.), exterior windows, building
insulation and roofing, electrical system design, utilities, process system
design, CIP system design, waste minimization and heat recovery are also
factors that can lead to energy savings when executed properly.
CIP systems use water and energy. But James Larva, Hendon & Redmond project
manager, points out there is more to saving energy in CIP than in heating and
pumping the clean-up water. A big part of the cost is the energy consumed in
removing the water and moisture from the room after cleanup is over.
Unfortunately, process energy costs are frequently much greater in food plants
than many other manufacturing environments. The problem, according to
Webber/Smith Associates Chairman Gary Smith, is from a return on investment
(ROI) standpoint, energy costs would have to double for paybacks on
energy-saving solutions to be realized in two to three years. Therefore,
processors tend not to act. But those who do, says Smith, can find
opportunities to save energy with conversion to ammonia refrigeration, heat
recovery systems and cogeneration. Most processors, however, opt for the low
hanging fruit of lighting, building management systems and economizing
measures.
One way to save energy costs is not to oversize mechanical systems in the
design phase, says Darrin McCormies, senior vice president with Epstein. “Too
often,” he says, “these systems are oversized to cover risk.” He advises using
lower steam and compressed air pressure when possible, limiting exhaust to what
is required, looking at water temperature and using ambient when possible and
establishing building heating and cooling design temperatures based on product
requirements-not personal comfort.

Designed
to save energy, Upstate Farms’ West Seneca, NY, state-of-the-art manufacturing
plant makes cultured dairy products. The plant, which uses high-efficiency
motors and pumps, can handle in excess of 100 million pounds per year. Source:
Excel Engineering.
Keeping it clean
There
is no question that the pressure is on to reduce effluents and pollution. As
McNabb says, “No one wants to be a poster child for a ‘this is not the proper
way to regulate your waste.’ These potentially negative events are front-page
news.” Therefore, processors need to check what capacity exists for municipal
waste treatment and how they will handle their own waste treatment. Processors
also need to negotiate long-term deals with municipal waste authorities.
Sander points out, however, many local municipalities are stretching their
already overburdened infrastructure to keep up with residential and commercial
development. Therefore, processors will pay more for the disposal of waste and
will have to reduce biochemical oxygen demand (BOD) and solids in their
wastewater discharge. With these pressures, flotation separation has seen
increased favor for a variety of reasons, including improved BOD and solids
removal, compact size, reuse of oils and proteins in the float material and
more. In addition, several factors have increased the attractiveness of
anaerobic treatment technologies. These use a fraction of the power that
aerobic treatments use, offer higher efficiency than ever before and produce
bio-gas (60-70% methane) that can be used as fuel for boilers or cogeneration.

Smithfield’s
pork processing plant in Kinston, NC, uses new technology to reduce human
contact with food and decrease dramatically the amount of water used. Source:
Middough.
Hello walls, ceilings
With
all due respect to country & western singer Faron Young, walls, ceilings
and floors are finally getting the attention they deserve. According to Russ
Cudmore, director of engineering at BE&K Building Group Inc., “Owners of
most new projects and major renovations are extremely concerned with floors,
walls and ceilings and are looking for economical, but durable solutions to an
age-old problem-can the facilities stand up to physical abuse of process and
sanitation?” Cudmore says 75 to 80% of his customers’ projects are looking at
stainless steel (SS), acid brick and chemically-treated coatings.
Tony Lamell, vice president of architecture at Stellar, reports SS finishes are
becoming more common in high sanitation areas where cooked food products are
exposed and where condensation and temperature control is critical. Monolithic
flooring is being used in process areas where hot water wash-down and
wheel/cart traffic occurs, and where emulsifying and mixing/blending/combining
of ingredients are necessary. Dairy
brick is appropriate for wet process areas, but concern for grout dimension and
maintenance is obvious. Glazed tile is also very prevalent in process rooms,
but like brick, grouting is problematic. Solutions include minimizing grout
thickness and using epoxy grouts that are impervious to moisture and
staining.
Robert Graham, vice president, food and beverage at The Austin Company, says
his clients try to reduce and isolate wet areas, avoiding the requirement of
specialty finishes. Where in the past Graham had seen as much as 50% coverage
with these materials, several applications today use less than 25% of these
products.
According to McCormies, for a microbiologically sensitive product in a wet wash
environment, the default standard has become insulated wall panels with a SS
metal skin for walls and ceilings. There isn’t, however, a one-size-fits-all
solution. Smith, believing it’s an industry best practice, tries to steer his
clients toward walk-on ceilings, all SS platforms/doors/jambs/trim and
equipment structures. He says very few processors feel they can afford
constructing their plants this way, especially when they’re not sure that their
products will catch on. Knowing this, these processors often opt for
urethane-modified epoxy floors and insulated metal panel walls to keep up-front
costs down. This may be a false economy, because Smith sees many facilities
using cheaper materials in need of remodeling after seven to ten years. In
addition, these materials may be hard to clean and promote bacteria growth that
could infect a product.
The complete listing of the 2006 plant projects begins on page 56.
Click here to view this year's Construction Survey Chart. The following companies assisted Food Engineering in
compiling this survey:
The
Austin Company • Robert Graham
404-564-3950
BE&K Building Group • Russ Cudmore
678-441-8200
Big-D Construction • Forrest McNabb, Sr.
801-415-6030
Burns & McDonnell • Mark Swanson
816-822-3812
Case, Lowe & Hart • Kevin Lewis
801-399-5821
The Dennis Group • Alyssa Boudreau
413-787-1785
E.A. Bonelli + Associates, Inc. • Curtis Manns
510-740-0155
Epstein • Darrin McCormies
312-429-8411
Excel Engineering • Jim Krizenesky
920-926-9800, ext. 223
The Facility Group • Rebecca Elliot
770-437-2692
Faithful & Gould • Jonathan Marshall
612-392-3515
Food Tech Structures • Mike Golden
800-880-0118
Gleeson Constructors • Ronald Rens
712-258-9300
Haskell • Darryl Wernimont
904-357-4820