Sizing CCHP Systems for Variable and Non-coincident Loads, Part 2: Operating Strategies

Authors

  • Anthony Sclafani Department of Mechanical Engineering San Diego State University
  • Asfaw Beyene Department of Mechanical Engineering San Diego State University

DOI:

https://doi.org/10.13052/dgaej2156-3306.2341

Keywords:

CCHP, challenges, heat recovery, part load, efficiency

Abstract

One serious challenge to the implementation of combined cooling,
heating and power (CCHP) systems is matching and sizing the system to
strongly and frequently varying load conditions. Previous works, part 1
of this work in particular, have proven that while CCHPs have significant
cost and performance advantages over traditional single-cycle systems,
inadequate strategies, failure to address system flexibilities to accom-
modate load variations in particular, seem to have negatively impacted
this promising technology. This paper discusses some techniques that can
improve system flexibility for variable and non-coincident loads.

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Author Biographies

Anthony Sclafani, Department of Mechanical Engineering San Diego State University

Anthony Sclafani recently graduated with a Master of Science
degree in mechanical engineering from San Diego State University.

Asfaw Beyene, Department of Mechanical Engineering San Diego State University

Professor Asfaw Beyene, Ph.D., is a faculty member of the Depart-
ment of Mechanical Engineering at San Diego State University. Teaching
thermal courses since 1990, he also serves as the director of the Industrial
Assessment Center at SDSU and co-director of the Pacific Region CHP
Application Center. In his capacity as director of IAC, he has surveyed
close to 400 manufacturing plants. He specializes in energy systems. He
received his Ph.D. in mechanical and aerospace engineering from the
Warsaw University of Technology. He is member of American Society of
Mechanical Engineers; American Society of Heating, Refrigeration, and
Air-conditioning, and Association of Energy Engineers. Dr. Beyene may
be contacted at abeyene@rohan.sdsu.edu

References

Survey: California’s electric rates among nation’s highest, Sacramento Business Journal,

http://www.bizjournals.com/sacramento/stories/2005/05/16/daily20.html, accessed

Sept. 2007.

Dickin, J., R.A. Hanna, S. Randall, and C. Dedeurwaerder. “Challenges encountered

when expanding a world-class petrochemical facility.” IEEE Transactions on Industry

Applications, July/August, 2001, Vol. 37(4): 1109-1119.

Meckler, M. “Optimization of Building CHP Systems.” Cogeneration and Distributed

Generation Journal, 2003, Vol. 18 (4): 34-57.

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Published

2008-10-22

How to Cite

Sclafani, A. ., & Beyene, A. . (2008). Sizing CCHP Systems for Variable and Non-coincident Loads, Part 2: Operating Strategies. Distributed Generation &Amp; Alternative Energy Journal, 23(4), 6–28. https://doi.org/10.13052/dgaej2156-3306.2341

Issue

2008: Vol 23 Iss 4

Section

Articles