Please cite this article as: S. Arosio, M. Guilizzoni, F. Pravettoni. A model for micro-trigeneration systems based on linear optimization and the Italian tariff policy, Applied Thermal Engineering (2011), doi: 10.1016/j.applthermaleng.2011.03.027 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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A nonconventional thermodynamic converter, called thermogravimetric system, capable of generating mechanical-electric energy is described in the present work. Such plant is basically an interesting application of a liquid-vapor two-phase flow, evolving in elevated vertical ducts of a large diameter. The most significant plants—those working with liquid lead/steam and liquid lead/PP 50 C5F12—have been analyzed in more detail. Plant height Z, power W (0.5–4 MW), and overall efficiency ηo have been evaluated through an appropriate calculus code, particularly regarding the two-phase flow behavior.

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