The FLEXTURBINE consortium is built around an industrially initiated nucleus: Core representatives of the European turbine industry have joined forces and involved leading European universities and research institutes to address the identified research and technology questions. They will cooperate to achieve the project objectives, sharing experience and know-how and developing results with complementary skills. The following figure outlines the contributions of each partner to the FLEXTURBINE topics and the impact on the future market drivers for flexible energy generation.
The consortium setup comprises all steps of the value chain and thus ensures that the technology is applied as soon as possible. The industrial design capabilities are complemented by selected high profile university departments, which are also involved in modelling activities as well as in preforming rig and component tests.

Fig. 1 - Partners Contribution and Impact

 

Consortium Map & Partner Details

Politecnico di Milano

The Polytechnic University of Milan was established in 1863. The "Politecnico di Milano" is 

a science and technology university bringing forth engineers, architects and industrial designers. The number of students enrolled in all campuses reaches approximately 40 000, which makes the Politecnico di Milano the largest institution in Italy for Engineering, Architecture and Industrial Design. The Italian Ministry of Education has classified POLIMI among the top 5 Italian universities in terms of teaching and research quality. At a European level POLIMI has been ranked 15th among the universities by THE-QS.

The Department of Mechanical Engineering has its aim in the development, by theoretical and applied researches, of knowledge, methodologies, devices and systems proper to basic and applied mechanics. The research fields mainly focus on system mechanics, machine design, technical materials, mechanical technologies, mechanical plants and logistics, mechanical measurements, robotics and vehicle design. The group of machine design has a tradition of successful cooperation with companies in the field of gas tur-bines (ASEN, GE Avio) and industrial applications of "Fitness For Service" analysis.

 

Role in the project

POLIMI has a wide experience in fitness for purpose of mechanical components, considering the

 inherent features of manufacturing process (residual stresses, inhomogeneities, nondestructive testing control) and the peculiar service conditions of demanding applications (CCF, severe straining, high temperature) in aero engines and turbines. The research group has an important know-how in probabilistic methods as support to design.

POLIMI will be in charge of the assessment of compressor blades designs targeting very flexible service of the turbomachine. In particular, frequent load variations from  base load conditions may cause high mean stress HCF damage and combined Low Cycle Fatigue-High Cycle Fatigue damage, also known as Combined Cycle Fatigue (CCF). Moreover, such damaging phenomenon can also occur during start-up and shut-down phases, when the blades pass through their eigenfrequencies and it can be combined with typical surface degradation due to corrosion pits.

 

Personnel involved

Prof. Stefano Beretta

Since 2002 Full Professor of Machine Design and Machine Reliability at POLIMI. 

He is an expert in defect tolerant design, structural reliability and fatigue of railway components. He has authored more than 50 journal papers in the last 10 years. Chairman of the ESIS Technical Committee TC24.

stefano.beretta@polimi.it

Ferruccio Resta

ferruccio.resta@polimi.it


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