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Sizing analysis of a combined cooling, heating, and power system for a small office building using a wood waste biomass‐fired Stirling engine
Author(s) -
Harrod James,
Mago Pedro J.,
Luck Rogelio
Publication year - 2012
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.1782
Subject(s) - prime mover , stirling engine , process engineering , waste management , cogeneration , engineering , internal combustion engine , waste heat recovery unit , automotive engineering , waste heat , pinch analysis , thermal efficiency , sizing , electricity , environmental science , electricity generation , heat exchanger , mechanical engineering , combustion , power (physics) , electrical engineering , process integration , chemistry , physics , organic chemistry , quantum mechanics
SUMMARY When wood chips are available and used to fuel a combined cooling, heating, and power (CCHP) waste heat recovery system, they can represent an economically viable source of biomass energy that can meet a facility's electric and thermal demands. Using a Stirling engine as the CCHP prime mover provides several important advantages over conventional internal combustion engines including no additional processing of the waste wood chips, a potentially higher thermal efficiency, flexibility of fuel sources, and low maintenance. This study shows how the operational characteristics of a constant output, biomass‐fired, Stirling engine‐based CCHP system are affected by the performance of the individual components, including the prime mover, heat recovery system, auxiliary boiler, absorption chiller, and heating coil unit The results are assessed by examining the primary energy consumption and operational cost compared with a reference case. The analysis provides insight on the prime mover sizing and selection of each component to properly implement the system. In addition to examining the effects of each component, the effect of excess electricity production and buyback are considered. Copyright © 2010 John Wiley & Sons, Ltd.