Optimization of electric and thermal cogeneration in an integrated community energy system. [Burlington--Boston]

The conceptual design and the economical analysis are performed for an electric and thermal energy cogeneration plant to serve a mixed use community in Burlington--Boston, Massachusetts. The system services 15 buildings consisting of industrial, institutional, commercial, and retail use. The system...

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Bibliographic Details
Main Authors: Davis, A.A., Kennedy, A.S., Lee, C.M.
Language:unknown
Published: 2014
Subjects:
Online Access:http://www.osti.gov/servlets/purl/6413839
https://www.osti.gov/biblio/6413839
Description
Summary:The conceptual design and the economical analysis are performed for an electric and thermal energy cogeneration plant to serve a mixed use community in Burlington--Boston, Massachusetts. The system services 15 buildings consisting of industrial, institutional, commercial, and retail use. The system design consists of a condensing steam turbine with variable extraction and heat recovery for supplying heating and cooling loads. A novel thermal ice storage system is provided for cooling to minimize the size of the cooling machines (absorbtion chillers and ice machines) and the energy consumption. The Burlington Integrated Community Energy System (BICES) scheme is shown with all the equipment required to supply both electric energy to the grid for Boston Edison Company (BECO) and heat (including cooling) that will be used in the community. The steam turbine cogeneration system has been optimally designed to maximize all overall efficiency of the plant, hence, to conserve energy and scarce fuels while meeting the energy service demands of the community. The system appears to be economically marginal in private sector and depends on: rate of the return the investor is willing to accept; financing package and repayment structures; reaction of the community customers and willingness to pay; and rates and amounts of electricity sold to BECO.