Construction Today 2018 - Volume 16, Issue 3 - 136
Civil | DURR MECHANICAL CONSTRUCTION INC. - HRSG PROJECT
A Major Move
DURR MECHANICAL BUILT AND MOVED A 4,000-TON GENERATOR 150 MILES. BY ALAN DORICH
process of transporting the
HRSG took Durr Mechanical
Durr Mechanical Construction
Inc. - HRSG Project
ome may overlook the transportation aspects of a power generation
project, but those elements recently proved critical for Durr Mechanical Construction Inc. The contractor was
tasked with constructing a massive heat
recovery steam generator (HRSG) for the
PSEG Fossil LLC Sewaren Generation Station
under construction in Woodbridge, N.J.
The company also had to transport the
4,000-ton, 126-foot-tall generator 150 miles
from Port of Coeymans, N.Y., to Woodbridge.
The plant, Vice President Paul Thompson
explains, is being built on a small footprint
that prevented all components from being
constructed on-site at once.
The project also had a very aggressive,
tight schedule, which made things even
more complex. "The only way we could
complete the schedule was by building all
CONSTRUCTION-TODAY.COM VOLUME 16, ISSUE 3
the components at once," he says, adding
that the entire plant is built around the
HRSG, its single largest component.
Construction of the HRSG is not a new experience for Durr Mechanical. "We've built
projects as large as that before," Thompson
says. "What's unique about this is it was
built in a remote location, then barged to
Construction Manager Steven Thompson notes that the HRSG operates the exact
same function as a boiler and the power is
generated by two electric generators driven by a combustion turbine and a steam
turbine. The HSRG runs on the waste heat of
the combustion turbine instead of burning
its own fuel.
It then uses that heat to produce the
* Project budget: $95 million
* Employees: 350 (Peak)
* Scope: 126-foot-tall heat ecovery
"What's unique about is is it
was bui in a emote location,
en barged to e ite."
- Steven Thompson, construction manager
steam to drive the steam turbine. "It's recycling the waste heat and using it to produce
more power," he says.
The Sewaren plant will plug into the
HRSG, which will provide it with efficiencies
when it opens this summer. For example,
thanks to the generator, emissions are
reduced substantially compared to those
emitted by "an equivalent, conventional