Sizing analysis of a combined cooling, heating, and power system for a small office building using a wood waste biomass‐fired Stirling engine

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.

[1]  Pedro J. Mago,et al.  Analysis and optimization of CCHP systems based on energy, economical, and environmental considerations , 2009 .

[2]  Nelson Fumo,et al.  Performance analysis of CCHP and CHP systems operating following the thermal and electric load , 2009 .

[3]  M. A. Ehyaei,et al.  Energy, economic and environmental (3E) analysis of a micro gas turbine employed for on-site combined heat and power production , 2010 .

[4]  Iskander Tlili,et al.  PERFORMANCE OPTIMIZATION OF STIRLING ENGINES , 2008 .

[5]  Noel P. Nightingale.  Automotive Stirling engine: Mod 2 design report , 1986 .

[6]  Yi Jiang,et al.  Energy utilization evaluation of CCHP systems , 2006 .

[7]  Ruzhu Wang,et al.  Energy efficiency and economic feasibility of CCHP driven by stirling engine , 2004 .

[8]  Huang Xing-hua,et al.  Influence of energy demands ratio on the optimal facility scheme and feasibility of BCHP system , 2008 .

[9]  Miles A Redfern,et al.  Modelling and simulation of a novel micro‐scale combined feedstock biomass generation plant for grid‐independent power supply , 2010 .

[10]  Nadia Martaj,et al.  Exergetical analysis and design optimisation of the Stirling engine , 2006 .

[11]  Iskander Tlili,et al.  Thermodynamic analysis of the Stirling heat engine with regenerative losses and internal irreversibilities , 2008 .

[12]  D. G. Thombare,et al.  TECHNOLOGICAL DEVELOPMENT IN THE STIRLING CYCLE ENGINES , 2008 .

[13]  Pedro J. Mago,et al.  First and second law analysis of a Stirling engine with imperfect regeneration and dead volume , 2009 .