Combining Heat, Cooling and Power into One Facility

Stanley Consultants was hired as the engineer of record, performing all computations and detailed specifications for the design of a new tri-generation plant.

The project was organized into two separate phases. The first phase consisted of installing two 1.4 MW gas-fired engine generator sets with waste heat recovery boilers/silencers. The engines are capable of burning either natural gas or biogas to be supplied from a landfill a few miles away. Heat from the engine cooling system and exhaust system are recovered to supply high temperature hot water for heating the new research campus facilities.

The second phase of this project consisted of constructing a central chilled water plant in a new building adjacent to the existing power plant. In the interest of developing a tri-generation facility, this plant includes space and provisions for future expansion to use the waste heat from the engine generators (or other sources) during the summer months to generate chilled water through the use of thermal chillers (i.e. steam turbine-driven or absorption).

The initial campus cooling load is met with a high efficiency, 600-ton electric centrifugal chiller that will operate in tandem, or independently from the future additional thermal chillers.

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