|Construction Site Description:
I worked at a site for a new power generation facility in Ravenswood, Queens. The plant utilizes a combustion turbine generator that outputs 160 Mw, a heat recovery steam generator and a steam turbine generator that will produce 90 Mw. The plant was built on a 2.5-acre parcel of land at the existing Ravenswood Generating Station. The Ravenswood Station currently has a capacity of over 2100 megawatts, about 25% of New York City's electric generating capacity. The new unit will add 12% more generating capacity to the facility.
The new generators produce electric power utilizing state-of-the-art technology that is more efficient than existing generators. The unit uses natural gas as a primary fuel and adheres to the latest stringent environmental standards. Increased efficiency, better technology, use of natural gas and pollution control technologies will combine to result in a plant with very low emission rates.
The scope of work included relocation of existing utilities, site demolition and cleanup, and drilling of caissons for the deep pile foundations, as well as placement of 12,000 cubic yards of concrete foundations. The contract also called for extensive architectural construction, such as erecting 3,800 tons of structural steel and placement of masonry block, acoustical siding, built-up roofing, and associated architectural finishes for the 47,000-square-foot powerhouse building. Additionally, the team installed a 400-foot-tall, reinforced-concrete stack that features an 18-foot interior diameter lined with insulating steel.
A stand-out feature of this project was installation of the 18-cell air cooled condenser. Due to space limitations, the unit is located on the roof of the facility. Because of the additional weight, larger caissons and structural steel components were needed. Slattery was also responsible for erection of the Gas Insulated Substation.