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SUNY celebrates opening of pellet-fueled gasifier, boiler

The combined-heat-and-power system (CHP) housed within the State University of New York’s College of Environmental Science and Forestry's (ESF) Gateway Center, which was officially opened Friday, uses biomass pellets and natural gas to provide the campus with 65 percent of its heating needs and 20 percent of its electrical power.

"Today we ramp up testing as we connect each piece of technology into the operation. At full power the CHP reduces campus-wide fossil fuel usage by 9,000 barrels of oil annually and lowers campus utility costs by 20 percent," said ESF President Cornelius B. Murphy, Jr.

Some 200 people, including elected officials, friends of the college, business partners, students, faculty and staff attended the ribbon cutting Friday morning.

"We are here today," said Murphy, "because state Senator John DeFrancisco supported us at the beginning with the money needed to jumpstart the project."

Following the ceremonies attendees were invited to tour the building with faculty and staff available to explain the unique aspects of the Gateway Center.

"We made a commitment on this campus not just to design a building but to design a building that will teach," Murphy said.

Joining him in cutting the green ribbon were DeFrancisco and N.Y. Lt. Gov. Robert J. Duffy. Duffy said ESF has been "an environmental leader" for more than 100 years. "This school is fantastic in so many ways," Duffy said. "You really are leading the nation in meaningful ways, in terms of how we are going to live."

DeFrancisco gave Murphy, who has announced he will step down as ESF president, credit for leading ESF through a tremendous period of growth. "The progress since Neil has been here is unbelievable," DeFrancisco said.

The Gateway Center is a centerpiece of the college's Climate Action Plan, which states ESF's commitment to achieving carbon neutrality by 2015. In addition, the Gateway Center, with its Trailhead Cafe, ESF College Bookstore, conference center and gathering areas, serves as a hub for campus activity. A portion of the college's renowned Roosevelt Wildlife Collection is also on display.

The Gateway Center has a high-performance building envelope: a bioclimatic façade that controls thermal loss and solar gain to minimize building design loads. Building design is integrated with innovative energy systems connecting to the campus infrastructure.

Renewable fuels are used to help reduce ESF's carbon footprint and the building showcases a variety of technologies to further research, community engagement and the college's educational mission. The CHP will serve as a teaching tool, especially for students enrolled in ESF's new sustainable energy management major and renewable energy minor.

The wood pellet-fired gasifier is connected to a steam boiler that produces 8,000 pounds of high-pressure steam per hour. The high-pressure steam is run through a turbine to produce electricity and the low-pressure steam exiting the turbine is piped into five campus buildings to provide heat.

There are two natural gas-fired steam boilers to allow the system to efficiently meet peak and seasonal loads. The larger natural gas-fired boiler produces 10,000 pounds of steam per hour. Again, the high-pressure steam from this boiler is fed into the steam turbine producing electricity and the low-pressure steam is used for heat.

Because heat demands are low in the summer, a smaller natural gas steam boiler is put into operation producing just 2,000 pounds of low-pressure steam to meet any summer needs.

There are also three natural gas-fired microturbines that are part of the system. The microturbines burn the natural gas to produce heat, which spins the turbine to generate electricity. The exhaust heat from the process is captured and converted to low-pressure steam in a heat recovery boiler and distributed via heat exchangers through the Gateway Center plus Jahn Laboratory, Illick Hall, Moon Library and Baker Laboratory.

A passive solar thermal unit on the upper roof of the building produces hot water for domestic use while a garden roof comprising native New York plants on the second floor roof helps insulate the Gateway Center and reduce storm water runoff. The roof is open to campus visitors.


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