Organic Rankine Flash power cycle

The invention herein presented relates to power cycles designed to reduce the heat transfer irreversibility between the working fluid and the heat source. Although widely accepted, the organic Rankine cycle presents a high irreversibility during phase change since heat is supplied to a constant temperature working fluid from a variable temperature heat source, leading to high temperature differences. The invention addresses this high irreversibility by presenting a novel power cycle consisting on the combination of two thermodynamic cycles in which the heat rejection of the topping trilateral cycle provides the heat required by the bottoming organic Rankine cycle for phase change through effective direct heat exchange within a tank.

Inventors: Gustavo Bonolo, Alberto Traverso

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Ultra-efficient bladeless turbomachinery

The invention relates to a reversible turbomachine comprising : - a rotor housing containing one or more rotor members which rotor comprises a plurality of mutually spaced discs which rotate about a rotational axis and are coaxially disposed about a rotational shaft; - a primary stage for the flow of the high energy fluid, communicating with the rotor housing by means of at least one stator channel; a secondary stage for the flow of the low energy fluid; and comprising at least one rotary distribution chamber for distributing said fluid to or from the rotor, said rotary distribution chamber being arranged in the internal space of the rotor housing and interposed between the at least one stator channel and at least part of said discs, said rotating distribution chamber being provided with at least one rotor opening for the passage of the fluid between the primary stage and the rotor.

Inventors: Avinash Renuke, Alberto Traverso, Matteo Pascenti, Paolo Silvestri, Federico Reggio

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Applications of a micro-nozzle element

The present invention falls into the field of possible applications of an annular element with micro nozzles. In particular, the present invention relating to the different possible uses of said annular element equipped with a large number of nozzles of very small dimensions.

More in detail, the solution proposed here involves the use of the annular element with micro nozzles and two containment flanges in order to create a mixing element suitable for use as a component of a heat exchanger, improving the performance and efficiency of the exchanger itself, the present invention relating to a heat exchanger equipped with a said mixing element.

Inventor: Raffaele Antonio Spezia

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Applications of a micro-nozzle element

The IT202200001085A1 patent introduces an innovative system to reduce NOx emissions and enhance energy efficiency in industrial applications. It features high thermal exchange efficiency on a compact surface, optimizing heat transfer while reducing costs and space requirements. This system ensures better thermal management, longer system lifespan, and significantly contributes to environmental sustainability by lowering harmful emissions. The patent represents a crucial innovation for improving air quality and meeting stringent environmental regulations.

Inventor: Raffaele Antonio Spezia

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Method for compressor performance monitoring and surge detection

This invention refers to an innovative method to monitor compressor performance as well as to detect unstable behaviour onset such as compressor stall or surge.

The invention provides significant advantages in the field of electrically-driven compressors, preferably dynamic compressors of radial or axial type, which are largely used in the refrigeration systems, heat pump systems, process industry, oil&gas industry, technical gas management including natural gas and hydrogen compression, and, in general, in all those applications managing streams of compressible vapours and gases.

Inventors: Alberto Traverso, Paolo Silvestri, Raffaele Spezia, Federico Reggio, Carlo Niccolini, Ferrando Marco, William T. Cousins