| | Project Description | | One-Two Sentences
Pre-Proposal date: November 29, 2017
Pre-Proposal location: 575 W. Cameron St. Chapel Hill, NC
(2nd Floor conference room)
The University of North Carolina operates two (2) 250,000
pounds per hour Circulating Fluidized Bed boilers permitted
to burn coal, biomass, natural gas and number 2 oil. The
primary fuel is Eastern Bituminous Coal. Limestone is added
in the combustion chamber of each boiler to control SOx
emissions, and baghouses collect particulate downstream of
the boilers. Due to new permit requirements that take
effect in May 2019, the University desires to install a dry
sorbent injection system to control HCl gas in the boiler
exhaust.
This project will address that need including a sorbent silo
sized to store one month's supply of sorbent when both
boilers are operating at maximum load. The system will
include all blowers, pumps, electrical gear, structural
supports, platforms and any miscellaneous equipment and
appurtenances necessary to form a complete functioning
system, including any equipment necessary for loading
sorbent into the silo and any specialized maintenance tools.
The project is located in an area where noise attenuation
is essential. The scope will include designing the system
and any structural supports, providing the equipment, and
constructing the system. The design shall incorporate the
new electrical demand with the overall electrical primary
and alternate infrastructure. This electrical demand
assessment shall include one Variable Frequency Drive for
one Cooling Tower Fan to help manage the load on the
electrical primary and alternate infrastructure. The design
shall also include the new instrument air demand with the
existing instrument air infrastructure. The team shall
determine if more storage and/or air compressor capacity is
required for the new equipment. The scope includes
providing assistance in the commissioning of the system,
providing system documentation including system
descriptions, operations manuals, P&ID's, loop
sheets, and as-built construction drawings. The scope shall
include integration of the system controls with the existing
plant DCS (Emerson Ovation).
The design shall comply with all UNC and SCO design
standards. The project will utilize the design build method
of delivery as defined in NCGS 143-128.1A.
For additional information, please contact the project
manager via email: sarah.towles@facilities.unc.edu | |