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marini martino

Martino Marini

Professore Ordinario in Macchine a fluido ING-IND/08

Telephone
+39 079 9720409
Mobile
Address
Palazzo del Pou Salit, Piazza Duomo 6,
07041 Alghero (SS), Italia
Office hours for students
Tuesday 09.00-11.00
Courses
Fisica tecnica ambientale II | Architettura | 2° year | 2010-2011
Fisica tecnica ambientale III | Architettura | 3° year | 2010-2011
Fisica tecnica ambientale IV | Architettura | 4° year | 2010-2011
Energetica | Pianificazione Ambientale | PTUA | 2° year | 2010-2011
Fisica tecnica ambientale III | Architettura | 3° year | 2011-2012
Fisica tecnica ambientale IV | Architettura | 4° year | 2011-2012
Fisica tecnica ambientale | SdAP-Architettura | 2° year | 2011-2012
Impianti tecnologici per la sostenibilità | Crediti a scelta | n/a year | 2011-2012
Impianti tecnologici per la sostenibilità | Optional course units | n/a year | 2012-2013
Fisica tecnica ambientale IV | 5 year Architecture | 4° year | 2012-2013
Fisica tecnica ambientale | BSc Architecture | 2° year | 2012-2013
Fisica tecnica ambientale | BSc Architecture with Design | 2° year | 2012-2013
Engineering Physics | BSc-Architecture | 2° year | 2013-2014
Engineering Physics | BSc-Architecture with Design | 2° year | 2013-2014
Thermal plants for sustainability | Optional course units | n/a year | 2013-2014
Fisica tecnica ambientale | Design and sustainability | MSc Architecture | 2° year | units
Engineering Physics | BSc-Architecture | 2° year | units
Engineering Physics | BSc-Architecture with Design | 2° year | units
Engineering Physics | BSc-Architecture with Design | 2° year | units
Engineering Physics | BSc-Architecture | 2° year | units
Fisica tecnica ambientale | Design and sustainability | MSc Architecture | 2° year | units
Fisica tecnica ambientale | Design and sustainability | MSc Architecture | 2° year | units
Engineering Physics | BSc-Architecture | 2° year | units
Engineering Physics | BSc-Architecture with Design | 2° year | units
Short CV

Martino Marini obtained a Master degree in Mechanical Engineering at the University of Genoa in 1986, then he discussed in 1990 a PhD thesis dealing with a 3D solver for turbomachinery flows with special attention to grid generation.

He has been serving as technician and researcher at the Energy Engineering Department (DINE) for some years (1990-98), then he moved from the University of Genoa to the Department of Industrial Engineering (DII) of the University of Cassino as Associate Professor. On 1st November 2001 he transferred to the Department of Architecture and Planning (DAP) of the University of Sassari, set in Alghero. He is full professor of Fluid Machinery in the same Department since October 2005.

As far as educational charges are concerned he has been providing courses in Fluid Machinery, Fluid Mechanics, Design and Analysis of Fluid Machines at Genoa and Cassino Universities, in Applied Physics at the University of Sassari.

He cooperated with research programs for the Italian Ministry of University in Genoa and Cassino. He took part to research contracts financed by the Ligurian energy agency for the wind resource assessment. Together with G. Spazzafumo he organized in September 2003 the International Conference “Hypothesis V” which took place in Alghero on 7-10 September 2003. He is the scientific manager of the European project “Project for the redevelopment of the public spaces in Osilo settlement on the ground of principles of energy efficiency”.

The scientific activity concerned different topics. They can be summarized as follows:

a) Computational models for turbomachinery flows b) Fluid dynamics applied to machinery , c) Aerodynamic analysis of wind turbines d) Measurements and studies on fluid machinery, e) Design and optimization of fluid machinery , f) Technical and economical analysis of wind systems, g) Revised systems for energy storage.

The analysis of the flow in turbomachinery passages has been carried out, starting from methods fitted to turbomachinery features, to progress to the more general models of the computational fluid dynamics. The “quasi-3D ” approach, based on calculations along blade-to-blade and meridional surfaces to be matched together, was developed through finite differences calculations that have been successfully applied to industrial machine and to design procedures exploiting optimization techniques (genetic algorithm). By means of successive enhancements the calculation of the flow in annular cascades has been obtained, starting from the numerical solution of 1D and 2D inviscid flows to arrive to the simulation of averaged turbulent fully 3D flows. A special attention has been devoted to the generation of computational grids, by developing a novel elliptic grid generator which enable to have a mesh orthogonal along boundaries and with a distribution of calculation points smoothly changing so that a good accuracy can proceed from that. The time-marching approach, originally developed to solve compressibile flows, has been transferred to incompressible flows, applying artificial compressibility to calculate mixed flow pumps.

Some experimental surveys have been carried out, mainly through the facilities of the University of Genoa: they concerned axial turbo compressors, positive displacement pumps and jet pumps.

The wind turbines have been the subject of a protracted interest, also taking into account their development and wide diffusion in the meanwhile. The aerodynamics of these machines, with a working principle which is only in part similar to other turbomachines, has been modeled by developing codes of different complexity, with special emphasis to the vertical axis configuration (VAWT) without missing out the better known horizontal axis configuration (HAWT). Wind systems were also analyzed as energy plants focusing on their performance to feed a local grid ; the hydrogen as energy carrier was assumed in such an application, with fuel cells operating with feeble winds after the hydrogen had been formerly produced via electrolysis driven by wind energy.

Energy storage has been investigated at first within the scenario of small stand alone systems fed by renewable sources; then the performance of compressed air energy storage, suitable to larger scales and not yet fully explored, have been analyzed. The energy storage has been assessed in the market scenario of profiting of energy price differences among the hours of a single day and among the days of an entire week. The economic return has been evaluated taking into account the charges of the Italian energy market and considering the chances offered by systems that compensate the pressure fluctuations with a water head.

Finally, the subject of the energy requirements and possible savings in buildings has been considered in some details, dealing with a specific small centre of Sardinia (Osilo) where a pilot project is about to be developed. The direct measurements about the real walls of buildings allowed to get several data concerning the global coefficient of heat transfer of historical buildings and the local climate. In this way a useful picture of the existing situation has been obtained, subsequently completed with energy audits about heating systems and living habits. Therefore energy, especially in the latter part of the research activity, is the unifying item of various studies, characterized by a special attention for renewable sources like the wind.