Commercial Architecture June 2017 - 27

PROJECT
capacity was much greater than the actual load.

"We've created efficiencies in both energy and

Earl Keisling, Intertech CEO, explained that, "IT

space," said Marcus Moliteus, vice president of sales and

systems are designed, like in the financial industry, to

engineering at Inertech. "By doing that we can provide

'follow the sun around.' These systems are designed to

our clients with a modular chiller plant or cooler solu-

support very high loads in a given area, whether it be

tion in 350- to 500-kW modular blocks. We've worked

Hong Kong or the London stock exchange, but have to

closely with Danfoss to reduce amperage on the Turbo-

be able to support low loads as well. The problem with

cor compressor the way we apply it in our patented cycle

the original technology-these large chiller plants-is that

and, by doing so, have created efficiencies beyond what

they only work well when they're fully loaded, because

the original product intended." The collaboration has

that's what they were designed for."

enabled Inertech to create multiple efficiencies, reduce

Keisling added that when data centers are operating
they never draw more than 60% of the wattage listed on

hvac

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the overall environmental footprint, and drive costs
down for its customers. CA

the server nameplate. "Therein lies the problem-that
you designed a system for servers, and your utilization
is only a fraction of what that name plate is."
If companies overbuild their cooling systems, or install products they aren't using, it is operationally and
fiscally inefficient. The lack of a supply-chain model
that scales products to requirements has fueled the perpetual repetition of this costly practice.
INNOVATIVE SOLUTION

Inertech's patented model has been able to reduce 80%
to 85% of the cost of starting a data center. On the operational side, because Inertech's cooling systems are 90%
more efficient than a traditional chiller plant, it is able
to drastically cut the electrical infrastructure that supports that data center for its customers.
Inertech built a platform of small modular cooling
blocks that can be scaled to actual IT use. It worked
with Danfoss to identify critical components that
would enable it to maximize efficiencies for energy and
water use. The system design supports data center needs
in a much more cost-effective delivery model than a

endless
always has a solution.

traditional chiller plant, as the smaller platforms can be
installed exactly when they are needed, or 'just-in-time,'
without interrupting IT online operations.
Inertech's cooling cycles were designed modularly,
in the equipment, as well as in the physical infrastructure, enabling data centers to scale over time. Working
in a supply chain of four to six weeks, Danfoss and Inertech deploy and hook up pre-assembled modular
units to data centers based on their actual IT use, which
has resulted in energy efficiency of 80% to 90%, versus
a normal chiller plant.
A traditional 10-MW data center would typically
require 20 MW to have sufficient power to get the
chiller plant back online in the event of a power outage.
Modularizing the system with small Turbocor blocks
resulted in very low in rush, only using the compressors
as needed, which reduced the electrical infrastructure
required from 100% overhead to 15%.
Inertech's Cactus Units use about 80% to 85% less
water than a traditional chiller plant. This particular
unit also affords data centers the ability to run dry, pro-

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viding added flexibility to compensate for the atmosphere and surrounding conditions.
CIRCLE 212

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Table of Contents for the Digital Edition of Commercial Architecture June 2017