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Article
Affiliation(s)

Department of Engineering, University of Bergamo, Dalmine 24044, Italy

ABSTRACT

The present paper analyses a case study of the application of dynamic energy simulation on the energy efficiency improvement process of an existing commercial building, the retrofit of a CHP machine for the combined generation of heat and power is analysed. Great attention is dedicated to the correct sizing of the CHP/CCHP plant both in term of energy efficiency and economic viability. A detailed building model is developed and used, through dynamic building simulation, to identify the potential energy and economic savings achievable with the installation of a CHP/CCHP sized based on the results of the simulation itself. The work proves the usefulness of dynamic energy simulation as an evaluation tool for retrofits of CHP plants and provides suggestions on the correct sizing of CHP equipment. It is also meant to prove what could be achieved if those kinds of analysis were carried out during the design of the building.

KEYWORDS

Dynamic energy, simulation CHP/CCHP sizing, energy efficiency, retrofit analysis.

Cite this paper

Journal of Civil Engineering and Architecture 19 (2025) 184-195

doi: 10.17265/1934-7359/2025.04.004

References

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[5]   de Wilde, P., G. Augenbroe, M. van der Voorden, 1999: Invocation of Building Simulation Tools in Building Design Practice. Proceedings of the Building Simulation ‘99, Sixth International IBPSA Conference, Kyoto, Japan, September 13–15, 1999. p. 1211–8.

[6]   D.Rg. VIII/8745 Lombardy Region.: Determinations regarding the provisions for energy efficiency in buildings and energy certification.

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[8]   D.lgs 201/2011. Urgent measures for growth, equity and fiscal consolidation of public finances.

[9]   D.M. 5 September 2011.Support system for high-efficiency cogeneration.

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