Kennedy Space Center Master Plan

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CHP

 

A high-level analysis was performed to assist in the consideration of CHP technology for the Vehicle Assembly Building Utility Area (VAB UA). The analysis assumed a centralized CHP plant located at the VAB UA that utilizes natural gas. The CHP would produce electricity and generate heat as a byproduct to be used to heat water for buildings currently served by the VABUA. The electrical output could also be used as an emergency backup supply in the event of a utility outage.

Electrical and gas usage data collected through utility meters at KSC buildings was analyzed for 2009, which was one of the last years of the shuttle program. A gas turbine with an output of 4.6 MW was assumed to serve as a base load for K6-848 (VAB), K6-900 (Launch Control Center), K6-696 (OPF Hi Bay 3), K6-794 (Tile Processing), and K6-894 (OPF). A base hot water load of 6 MMBtu/hr was estimated. A new steam-turbine-driven chiller of approximately 1,500 tons was also assumed as part of the analysis. The existing chillers and at least one of the existing boilers would remain to operate for peak loads. A steam-hot water heat exchanger would be installed to heat the high temperature hot water.  The studies were done with a blended electric rate of $0.085/kWh and a $0.47/therm charge for natural gas. These values from the preliminary analysis suggest an annual savings of approximately $1.4 million. With an upfront capital investment of approximately $18 million, the simple payback is 13 years. It is recommended that KSC consider further analysis of cogeneration options and pursue them, provided they are life cycle cost effective


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