Modelling residential-scale combustion-based cogeneration in building simulation

Ferguson, A. and Kelly, N.J. and Weber, Andreas and Griffith, Brent (2009) Modelling residential-scale combustion-based cogeneration in building simulation. Journal of Building Performance Simulation, 2 (1). pp. 1-14. ISSN 1940-1493 (https://doi.org/10.1080/19401490802588424)

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Abstract

This article describes the development, calibration and validation of a combustion-cogeneration model for whole-building simulation. As part of IEA Annex 42, we proposed a parametric model for studying residentialscale cogeneration systems based on both Stirling and internal combustion engines. The model can predict the fuel use, thermal output and electrical generation of a cogeneration device in response to changing loads, coolant temperatures and flow rates, and control strategies. The model is now implemented in the publicly-available EnergyPlus, ESP-r and TRNSYS building simulation programs. We vetted all three implementations using a comprehensive comparative testing suite, and validated the model's theoretical basis through comparison to measured data. The results demonstrate acceptable-to-excellent agreement, and suggest the model can be used with confidence when studying the energy performance of cogeneration equipment in non-condensing operation.