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Building Energy Management: Co-Generation Coupling With Thermal Energy Storage

[+] Author Affiliations
K. H. Khan, M. G. Rasul, M. M. K. Khan

Central Queensland University, Rockhampton, QLD, Australia

Paper No. IMECE2002-33107, pp. 607-613; 7 pages
doi:10.1115/IMECE2002-33107
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advanced Energy Systems
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Advanced Energy Systems Division
  • ISBN: 0-7918-3626-6 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

This paper is concerned with the feasibility study and evaluation of an energy savings opportunity in buildings energy management using co-generation coupling with thermal energy storage. Both the technical and economical feasibility is presented first for the co-generation and then compared with the co-generation using thermal energy storage. On-site co-generation with double effect absorption chiller provides a potential of at least 13% peak demand reduction and about 16% savings in energy consumption. It provides an internal rate of return (IRR) greater than 21% but saving potential is limited by the low demand of co-generated chilled water within the community of the institution. Thermal energy storage coupling with co-generation offers a simple and economically more attractive approach for maximizing the utilization of co-generated chilled water and shows 23% reduction in peak demand and 21% savings in energy consumption. It provides higher IRR, greater than 25%.

Copyright © 2002 by ASME

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