Page 86 - Sustainable On-Site CHP Systems Design, Construction, and Operations

64 CHP B a s i c s

If a chiller plant is to be part of the CHP plant, the following additional systems will
likely be required:
• Chilled water supply and return: chilled water pumps, distribution system,
coils, control valves, chemical treatment
• Condenser water supply and return system: cooling towers, condenser water
pumps, chemical treatment
Auxiliary systems can include

• Compressed air
• Backup fuel oil storage
• Makeup water
• Treated water: deionized/reverse osmosis (DI/RO)
• Fire protection

It is the responsibility of the CHP design engineer to understand and evaluate the
different fuel-to-power prime movers available in the market versus what will best
serve the facility (see further chapters). Each prime mover option has various thermal
options (see Chap. 4), and the type of prime mover, generated thermal quality, and
thermal uses incorporated into the CHP plant will determine the plant systems required.
The design engineer should be familiar with each system listed above (Chap. 10 provides
additional information regarding design decisions).

References
1. Abedin, A., Foley, G., Orlando, J. A., Spanswick, I., Sweetser, R., Wagner, T. C., Zaltash,
A. (2008). Combined Heat and Power Systems. In Owen, M. S. (Ed.), 2008 ASHRAE
Handbook: HVAC Systems and Equipment (I-P Edition). Atlanta, GA: American Society
of Heating, Refrigerating, and Air Conditioning Engineers.
2. Orlando, J. A. (1996). Cogeneration Design Guide. Atlanta, GA: American Society of
Heating, Refrigerating, and Air-Conditioning Engineers.
3. Sweetser, R. (2008). “CHP-101: CHP Technology Portfolio Today and Tomorrow,”
PowerPoint slides. ASHRAE Winter Meeting 2008.
4. Goss Engineering, Incorporated. (2002). University of Redlands TES and Cogeneration
Feasibility Study. Corona, CA.
5. U.S. Department of Energy, 1999. Office of Energy Efficiency and Renewable Energy:
Review of Combined Heat and Power Technologies, October.
6. U.S. Department of Energy, 2008. Hydrogen Program, Comparison of Fuel Cell
Technologies, December 2008.