Brescia, Italy
Brescia, Italy

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Heat exchanger (100, 200) for cooling contaminated fluids and which are subjected to variable thermal load, by means of heat transfer to a receiving liquid and/or vapor fluid, said heat exchanger comprising a tube bundle consisting of a plurality of independent tubes (1), two plenums (9, 10, 109, 110), plates (12, 13, 112, 113), and characterized in that said independent tubes (1) comprise an inner tube (2, 102) in which the contaminated gas flows, and an outer tube (3, 103) being said inner tube (2, 102) and outer tube (3, 103) coaxial and where between the outer surface (2, 102) of the inner tube (2, 102) and the inner surface (31, 103) of the outer tube (3, 103) is defined an annular passage G in which flows the receiving fluid and in that said inner tube (2, 102) is welded to the plate (12, 112) in a gas inlet section, while a gas outlet section is guided in a corresponding hole of the plate (13, 113), so that the inner tube (2, 102) expansion in an axial direction is not constrained.


Grant
Agency: European Commission | Branch: FP7 | Program: BSG-SME | Phase: SME-1 | Award Amount: 1.32M | Year: 2011

The strategic overall objective of the project is to develop a Waste Heat Recovery system for Power Generation in Cement plants. Waste Heat Recovery system (WHRS) will be based on ORC process, primarily attached to the cement production plant clinker cooler with definitive purpose to produce electrical energy from Low Temperature Waste Heat sources, as clinker exhaust heat is. Specific technological challenge for this project is to develop a Waste Energy Recovery Boiler (WERB) that will be able to operate efficiently in the highly demanding and aggressive conditions of clinker cooler exhaust gases area. High dust content and abrasiveness of clinker exhaust gas presents very demanding environment for reliable WERB operation. Integration of developed WERB system in existing Clinker Cooler process line and interface with ORC 1.5MWe plant in overall WHRS unit is next technology challenge. During the time span of this project following innovative solutions will be developed and implemented: Waste Energy Recovery Boiler WERB pipes protective coating development (WERB) design and optimization Advanced Control And Guidance System Integration and Optimization of WHRS Cement plant system


Grant
Agency: European Commission | Branch: FP7 | Program: CP-SICA | Phase: ENERGY.2013.2.9.1 | Award Amount: 6.30M | Year: 2013

The scientific targets of the EUROSUNMED project are the development of new technologies in three energy field areas, namely photovoltaics (PV), concentrated solar power (CSP) and grid integration (GI), in strong collaboration with research institutes, universities and SMEs from Europe in the north side of the Mediterranean sea and from Morocco and Egypt from the south of the sea. The focus in PV will be on thin film (Si, CZTS) based solar cells and modules while the goal in CSP field is to design and test new heliostats as well as novel solutions for energy storage compatible with these technologies. The project aims at producing components that will be tested under specific conditions of MPC (hot climate, absence of water, etc.). Such investigations are complemented with studies on grid integration of energy sources from PV and CSP in Morocco and Egypt context. Additionally, the consortium envisages to train PhD students and Post-Docs in these interdisciplinary fields in a close and fruitful collaboration between academic institutions and industry from EU and MPCs. The consortium is well placed around leading academic groups in materials science and engineering devices and equipments for the development of PV and CSP, and also in the promotion of the renewable energies in general. Moreover, technology transfer and research infrastructure development in the targeted areas will be provided. Disseminating the results of the projects will be done through the organization of summer schools, workshops and conferences towards large public from universities, engineering schools and stakeholders involved in the three selected energy areas and beyond. Another outreach of the project will be the proposal for a roadmap on the technological aspects (research, industry, implementation) of the PV, CSP and grid area as well as on the best practice for the continuation of strong collaboration between the EU and MPCS partners and beyond for for mutual interest and benefits.


Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: EE-18-2014 | Award Amount: 3.99M | Year: 2014

The main objective of the project is to develop solutions to recover the waste heat produced in energetic intensive processes of industrial sectors such as cement, glass, steelmaking and petrochemical and transform it into useful energy. These solutions will be designed after an evaluation of the energetic situation of these four industries and will deal with the development of Waste Heat Recovery Systems (WHRS) based on the Organic Rankine Cycle (ORC) technology. This technology is able to recover and transform the thermal energy of the flue gases of EII into electric power for internal or external use. Furthermore, a WHRS will be developed and tested to recover and transform the thermal energy of the flue gases of EII into mechanical energy for internal use (compressors). In order to reach this objective several challenging innovative aspects will have to be approached by the consortium. It is planned to design and develop a multisectorial direct heat exchanger to transfer heat directly from the flue gases to the organic fluid of the ORC system and to develop new heat conductor and anticorrosive materials to be used in parts of the heat exchanger in contact with the flue gases. These aspects will be completed by the design and modelling of a new integrated monitoring and control system for the addressed sectors. The consortium consists of 8 partners from 4 European countries. They cover several relevant sectors of the energy intensive industry, namely cement, steel, glass and petrochemical sectors. The industrial involvement in the project is significant and the project addresses the implementation of a full demonstration of the WHRS for electrical energy generation in one of the industrial partners (CEMENTI ROSSI) and a semi-validation of the WHRS for air compressors energy supply system at pilot scale.


It is described a method and a turbine for expanding an organic operating fluid in a Rankine cycle, the method comprising the step of feeding the operating fluid to a turbine provided with a plurality of arrays of stator blades (S1-S4, AR) alternating with a plurality of arrays of rotor blades (R1-R5), to define corresponding turbine stages, constrained to a shaft which rotates on the respective rotation axis. The method comprises the further steps of: a) causing a first expansion of the operating fluid in one or more radial stages (S1-S3, R1-R3) of the turbine, b) diverting (AR) the operating fluid exiting from the radial stages in a direction axial and tangential with respect to the rotation axis, and c) causing a second fluid expansion in one or more axial stages (R4, S4, R5) of the turbine. Step b) corresponds to an enthalpy change of the operating fluid equal to at least 50% of the average enthalpy change provided for completing the fluid expansion in the turbine.


Patent
Turboden S.R.L. | Date: 2014-12-15

An embodiment of the present invention is a method of controlling an Organic Rankine Cycle system, the system comprising at least one feed pump (2), at least one heat exchanger (3), an expansion turbine (5) and a condenser (6), the organic Rankine Cycle comprising a feeding phase of an organic working fluid, a heating and vaporization phase of the same working fluid, an expansion and condensation phase of the same working fluid, wherein said method controls an adjusted variable (X), which is a function of an overheating of the organic fluid, by means of a controller (20) that acts by varying a control variable (Y), which is a parameter of the organic fluid in its liquid phase, and wherein the adjusted variable (X) is a temperature difference ([increment]T) between a current temperature of the organic fluid in vapor phase at the turbine inlet and a temperature threshold (Tlim), under which the expansion phase involves the formation of a liquid phase of the organic fluid.


Device for oil separation and removal from a working fluid of an organic Rankine cycle plant, said plant having at least a supply pump (6), at least a heat exchanger (1, 16), an expansion turbine (5), a condenser (4), wherein the device is provided with a separator (2) and collection means (3), located between the evaporator (1) and the condenser (4) or between the evaporator (1) and a regenerator (16) of the organic Rankine cycle plant.


Patent
Turboden S.R.L. | Date: 2011-03-09

The invention is directed to an ORC (Organic Rankine Cycle) system at least partially co-generative for the production of electric energy and the heating of a fluid. The system includes at least two regenerative exchangers positioned in series on the route of the work fluid between the exit of an electric expander-generator group and the entrance of a condenser of the ORC system, and a heat exchanger-user connected by means of an offtake line to at least one of said regenerative exchangers to receive from them a part of the capacity of work fluid and crossed by the user fluid to be heated by means of a thermal exchange with said capacity of work fluid. A part of the capacity of the work fluid on exiting from the user exchanger is returned to the same regenerative exchanger.


Patent
Turboden S.R.L. | Date: 2011-05-05

The invention relates to an ORC (Organic Rankine Cycle) for the conversion of thermal energy into electric energy, comprising at least one heat exchanger unit for re-superheating the working fluid by means of the thermovector fluid from the hot source, between the discharge of the first expander and the input of the second expander, and a regenerator unit including a first regenerator and at least one second regenerator for regenerating the working fluid in at least two successive stages, in said first regenerator and at least in said second regenerator respectively, with an additional regenerative heat exchange along the flow line connecting the liquid working fluid output of the second regenerator to the liquid working fluid input of the first regenerator.


Patent
TURBODEN S.r.l. | Date: 2015-01-13

A method for producing syngas from preferably vegetal biomass is described. The method provides for the use of a fixed bed gasifier, equipped with two reactors. The biomass is fed to both reactors together with a primary flow rate of air. Advantageously, the method according to the present invention is different from the known art since a secondary flow rate of air is withdrawn from the first reactor at the area where the biomass dries, and fed to the second reactor at the area where the biomass dries, and vice versa, alternately during time. Alternatively, an oscillating air flow is created in each reactor. The achievable result is a greater syngas production, but not exclusively. The syngas quality is improved too, since the biomass has a longer time for completing the gasification reactions.

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