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This paper is a thorough review of innovative architectures of electro-hydraulic servovalves that exploit actuation systems based on piezo-electric materials. The use of commercially available piezo-electric actuators, namely, piezo stacks, amplified piezo stacks, rectangular benders, and ring benders, is very promising for the actuation of the main stages and of the pilot stages of servovalves given the fast response and low weight of piezoelectric materials. The use of these actuators can also allow novel designs to be developed, thus helping manufacturers to overcome the typical drawbacks of commercial servovalves, such as the high complexity and the high internal leakage of the pilot stages of two-stage servovalves as well as the large size and weight of direct-drive servovalves. First, the piezoelectric actuators that can be used for driving servovalves are presented in the paper, and their characteristics are thoroughly discussed. The main novel architectures present in the literature are then explained and compared with the commercial ones, and their performance parameters are discussed to draw conclusions on the prospect that some of these architectures can be used by manufacturers as future designs.
Paolo Tamburrano; Francesco Sciatti; Andrew Plummer; Elia Distaso; Pietro De Palma; Riccardo Amirante. A Review of Novel Architectures of Servovalves Driven by Piezoelectric Actuators. Energies 2021, 14, 4858 .
AMA StylePaolo Tamburrano, Francesco Sciatti, Andrew Plummer, Elia Distaso, Pietro De Palma, Riccardo Amirante. A Review of Novel Architectures of Servovalves Driven by Piezoelectric Actuators. Energies. 2021; 14 (16):4858.
Chicago/Turabian StylePaolo Tamburrano; Francesco Sciatti; Andrew Plummer; Elia Distaso; Pietro De Palma; Riccardo Amirante. 2021. "A Review of Novel Architectures of Servovalves Driven by Piezoelectric Actuators." Energies 14, no. 16: 4858.
This paper presents a feasibility study using commercially available amplified piezo-stacks for the direct actuation of four-way three-position (4/3) direct drive servovalves. The prospect of using amplified piezo-stacks in place of linear force motors is very attractive by virtue of their fast response speed and low weight. Piezo-stacks equipped with mechanical amplification systems can give levels of displacement suitable for this application. A very effective amplification system has recently been produced by some manufacturers and is based on a temperature-independent diamond structure. This paper details simulations of a 4/3 servovalve directly actuated by such a piezoelectric actuator with a diamond structure. To this end, well-established equations, implemented in Simulink by means of the libraries of Simscape Fluids, are used. The proposed architecture shows simplicity of construction; in addition, very good step response speed and frequency response are predicted by the simulations.
Paolo Tamburrano; Elia Distaso; Andrew Plummer; Francesco Sciatti; Pietro De Palma; Riccardo Amirante. Direct Drive Servovalves Actuated by Amplified Piezo-Stacks: Assessment through a Detailed Numerical Analysis. Actuators 2021, 10, 156 .
AMA StylePaolo Tamburrano, Elia Distaso, Andrew Plummer, Francesco Sciatti, Pietro De Palma, Riccardo Amirante. Direct Drive Servovalves Actuated by Amplified Piezo-Stacks: Assessment through a Detailed Numerical Analysis. Actuators. 2021; 10 (7):156.
Chicago/Turabian StylePaolo Tamburrano; Elia Distaso; Andrew Plummer; Francesco Sciatti; Pietro De Palma; Riccardo Amirante. 2021. "Direct Drive Servovalves Actuated by Amplified Piezo-Stacks: Assessment through a Detailed Numerical Analysis." Actuators 10, no. 7: 156.
This paper is a thorough review of innovative architectures of electro-hydraulic servovalves that exploit actuation systems based on piezo-electric materials. The use of commercially available piezo-electric actuators, namely, piezo-stacks, amplified piezo-stacks, rectangular benders and ring benders, is very promising for the actuation of the main stages and of the pilot stages of servovalves, given the fast response and low weight of piezoelectric materials. The use of these actuators can also allow novel designs to be developed, thus helping manufacturers to overcome the typical drawbacks of commercial servovalves, such as the high complexity and the high internal leakage of the pilot stages of two stage servovalves, as well as the large size and weight of direct drive servovalves. Firstly, the piezoelectric actuators that can be used for driving servovalves are presented in the paper and their characteristics are thoroughly discussed. Then, the main novel architectures present in the literature are explained and compared with the commercial ones, and their performance parameters are discussed to draw conclusions on the prospect that some of these architectures can be used by manufacturers as future designs.
Paolo Tamburrano; Francesco Sciatti; Andrew R. Plummer; Elia Distaso; Pietro De Palma; Riccardo Amirante. A Review of Novel Architectures of Servovalves Driven by Piezo-Electric Actuators. 2021, 1 .
AMA StylePaolo Tamburrano, Francesco Sciatti, Andrew R. Plummer, Elia Distaso, Pietro De Palma, Riccardo Amirante. A Review of Novel Architectures of Servovalves Driven by Piezo-Electric Actuators. . 2021; ():1.
Chicago/Turabian StylePaolo Tamburrano; Francesco Sciatti; Andrew R. Plummer; Elia Distaso; Pietro De Palma; Riccardo Amirante. 2021. "A Review of Novel Architectures of Servovalves Driven by Piezo-Electric Actuators." , no. : 1.
Recent needs of reducing pollutant emissions of internal combustion engines have pushed the development of non-conventional ignition systems. One of the most promising techniques appears to be the so-called Turbulent Jet Ignition (TJI) system, in which a jet of high-energy reactive gases is generated by means of a pilot combustion in a pre-chamber and used to initiate the main combustion event in the cylinder. Considering the complex nature of some phenomena typical of TJI systems, 3D CFD studies are essential to provide a detailed analysis for an efficient design. In this study, numerical simulations of an active pre-chamber TJI system applied to a lean operating methane engine were performed to provide a thorough analysis of the combustion process that characterizes such a technology. The numerical model was validated against experimental measurements carried out on an optically accessible single cylinder spark-ignition engine equipped with the pre-chamber prototype. The numerical simulations provided an insight view of both physical and chemical phenomena occurring inside the pre-chamber otherwise difficult to achieve by experiments alone. The evolution of some species of interest was analyzed in order to study the main charge ignition process, as well as the overall combustion progress. The results show that the main charge ignition is made possible by the large amount of energy and active radicals released from the pre-chamber and this ensures an overall stable and faster combustion in lean conditions. The performance improvements of the TJI system with respect to a traditional spark-ignition engine were evaluated in terms of efficiency and pollutant emission levels.
Elia Distaso; Riccardo Amirante; Egidio Cassone; Pietro De Palma; Paolo Sementa; Paolo Tamburrano; Bianca Maria Vaglieco. Analysis of the combustion process in a lean-burning turbulent jet ignition engine fueled with methane. Energy Conversion and Management 2020, 223, 113257 .
AMA StyleElia Distaso, Riccardo Amirante, Egidio Cassone, Pietro De Palma, Paolo Sementa, Paolo Tamburrano, Bianca Maria Vaglieco. Analysis of the combustion process in a lean-burning turbulent jet ignition engine fueled with methane. Energy Conversion and Management. 2020; 223 ():113257.
Chicago/Turabian StyleElia Distaso; Riccardo Amirante; Egidio Cassone; Pietro De Palma; Paolo Sementa; Paolo Tamburrano; Bianca Maria Vaglieco. 2020. "Analysis of the combustion process in a lean-burning turbulent jet ignition engine fueled with methane." Energy Conversion and Management 223, no. : 113257.
An experimental study has been conducted to provide a characterization of the transformations that particle size distributions and the number density of soot particles can encounter along the exhaust line of a modern EURO VI compliant heavy-duty engine, fueled with compressed natural gas. Being aware of the particles history in the exhausts can be of utmost importance to understand soot formation and oxidation dynamics, so that, new strategies for further reducing these emissions can be formulated and present and future regulations met. To this purpose, particle samples were collected from several points along the exhaust pipe, namely upstream and downstream of each device the exhaust gases interact with. The engine was turbocharged and equipped with a two-stage after-treatment system. The measurements were carried out in steady conditions while the engine operated in stoichiometric conditions. Particle emissions were measured using a fast-response particle size spectrometer (DMS500) so that size information was analyzed in the range between 5 and 1000 nm. Particle mass information was derived from size distribution data using a correlation available in the literature. The reported results provide more insight on the particle emission process related to natural gas engines and, in particular, point out the effects that the turbine and the after-treatment devices produce on soot particles. Furthermore, the reported observations suggest that soot particles might not derive only from the fuel, namely, external sources, such as lubricant oil, might have a relevant role in soot formation.
Elia Distaso; Riccardo Amirante; Giuseppe Calò; Pietro De Palma; Paolo Tamburrano. Evolution of Soot Particle Number, Mass and Size Distribution along the Exhaust Line of a Heavy-Duty Engine Fueled with Compressed Natural Gas. Energies 2020, 13, 3993 .
AMA StyleElia Distaso, Riccardo Amirante, Giuseppe Calò, Pietro De Palma, Paolo Tamburrano. Evolution of Soot Particle Number, Mass and Size Distribution along the Exhaust Line of a Heavy-Duty Engine Fueled with Compressed Natural Gas. Energies. 2020; 13 (15):3993.
Chicago/Turabian StyleElia Distaso; Riccardo Amirante; Giuseppe Calò; Pietro De Palma; Paolo Tamburrano. 2020. "Evolution of Soot Particle Number, Mass and Size Distribution along the Exhaust Line of a Heavy-Duty Engine Fueled with Compressed Natural Gas." Energies 13, no. 15: 3993.
Recent research highlights the influence of the presence of lubricant oil droplets on the combustion process in Direct Injection Spark Ignition (DISI) engines. Lubricant oil is considered to be the main responsible agent for the onset of pre-ignition phenomena, which can escalate highly undesired super-knock events. Moreover, lubricant oil plays a primary role in the generation of very fine soot particle emissions. In the present work, a reduced reaction mechanism is developed for modeling the combustion of gasoline-oil mixtures, allowing one to simulate the variation in ignitability of gasoline-like fuels induced by the presence of lubricant oil. In this study, a single hydrocarbon species, namely n-Hexadecane (n-C16H34), is shown to reproduce lubricant oil chemical and physical characteristics. Great effort has been performed to identify the most significant reaction pathways to reduce the complexity of the chemistry mechanism and the number of variables, while maintaining the important features of detailed mechanisms, for the highest computational efficiency. The proposed reduced mechanism has been validated for a wide range of operating conditions. It is employed for 3D simulations of experimental measurements in which iso-Octane was blended with different percentages of lubricant oil and its surrogates. Operating conditions representative of those of a typical turbocharged DISI engine are considered. The very good agreement obtained in the comparison with the experimental data confirms the effectiveness of the proposed “GasLube” mechanism in reproducing lubricant oil’s influence on ignition propensity of gasoline-like fuels. Furthermore, the 3D numerical simulations allowed a detailed analysis of the ignition phenomenon, providing more insight into the basic processes of lubricant oil induced pre-ignition events in DISI gasoline engines.
E. Distaso; R. Amirante; G. Calò; P. De Palma; P. Tamburrano; R.D. Reitz. Predicting lubricant oil induced pre-ignition phenomena in modern gasoline engines: The reduced GasLube reaction mechanism. Fuel 2020, 281, 118709 .
AMA StyleE. Distaso, R. Amirante, G. Calò, P. De Palma, P. Tamburrano, R.D. Reitz. Predicting lubricant oil induced pre-ignition phenomena in modern gasoline engines: The reduced GasLube reaction mechanism. Fuel. 2020; 281 ():118709.
Chicago/Turabian StyleE. Distaso; R. Amirante; G. Calò; P. De Palma; P. Tamburrano; R.D. Reitz. 2020. "Predicting lubricant oil induced pre-ignition phenomena in modern gasoline engines: The reduced GasLube reaction mechanism." Fuel 281, no. : 118709.
In part I of this study, we experimentally and numerically investigated the pilot stage of a novel two-stage servovalve architecture. The novelty of the proposed configuration is the torque motor being removed and replaced with two small two-way two-position (2/2) valves actuated by piezoelectric ring benders, which can effectively control the opening degree of a main spool valve. With this novel architecture, the typical drawbacks of two-stage servovalves can be overcome, such as the high complexity of the torque motor and the high internal leakage in the pilot stage when the main valve is at rest in the neutral position (null). The low complexity and the negligible internal leakage of the piezo-valves are accompanied by the high response speed typical of piezoelectric actuators. The valve assessment is completed in the present study, since the entire valve architecture (main stage + pilot stage) is investigated. In particular, a simplified numerical model is developed to provide a design tool that allows, for a given main stage spool, the values of the geometrical parameters of the pilot stage to be chosen along with the characteristics of the ring bender. This design procedure is applied to a 7 mm diameter main spool; afterward, a detailed numerical model of the entire valve, solved by SimScape Fluids software, is employed to demonstrate that the response of the main stage valve is very rapid while ensuring negligible internal leakage through the piezo-valves when the main stage is closed (resulting in lower power consumption). For this reason, the proposed valve can be regarded as a “clean” component for energy conversion, having lower energy consumption than commercially available servovalves.
Paolo Tamburrano; Andrew R. Plummer; Pietro De Palma; Elia Distaso; Riccardo Amirante. A Novel Servovalve Pilot Stage Actuated by a Piezo-Electric Ring Bender (Part II): Design Model and Full Simulation. Energies 2020, 13, 2267 .
AMA StylePaolo Tamburrano, Andrew R. Plummer, Pietro De Palma, Elia Distaso, Riccardo Amirante. A Novel Servovalve Pilot Stage Actuated by a Piezo-Electric Ring Bender (Part II): Design Model and Full Simulation. Energies. 2020; 13 (9):2267.
Chicago/Turabian StylePaolo Tamburrano; Andrew R. Plummer; Pietro De Palma; Elia Distaso; Riccardo Amirante. 2020. "A Novel Servovalve Pilot Stage Actuated by a Piezo-Electric Ring Bender (Part II): Design Model and Full Simulation." Energies 13, no. 9: 2267.
Electrohydraulic servovalves are widely used for precise motion control in aerospace and other industries due to their high accuracy and speed of response. However, commercial two-stage servovalves have several undesirable characteristics, such as the power consumption caused by the quiescent flow (internal leakage) in the pilot stage, and the complexity and high number of parts of the torque motor assembly, which affect the cost and the speed of manufacture. The solution to these problems can help to reduce costs, weight and power consumption, and enhance the reliability and reproducibility as well as the performance of these valves. For these reasons, this paper proposes a novel configuration for the pilot stage: it is composed of two normally closed two-way two-position (2/2) valves actuated by two piezo-electric ring benders; the opening and closing of the two piezo-valves can generate a differential pressure to be used to control the displacement of the main spool. In this way, there is negligible quiescent flow when the main stage is at rest; in addition, the torque motor and all its components are removed. To assess the performance of this novel pilot stage concept, a prototype of the piezo-valve has been constructed and tested. The experimental results indicate that the response speed of the new piezo-valve is very high. Furthermore, a numerical model is employed to show that, by adjusting specific parameters, the performance of the piezo-valve can be further improved, so that the valve can be fully opened or closed in less than 5 ms.
Paolo Tamburrano; Andrew R. Plummer; Pietro De Palma; Elia Distaso; Riccardo Amirante. A Novel Servovalve Pilot Stage Actuated by a Piezo-electric Ring Bender: A Numerical and Experimental Analysis. Energies 2020, 13, 671 .
AMA StylePaolo Tamburrano, Andrew R. Plummer, Pietro De Palma, Elia Distaso, Riccardo Amirante. A Novel Servovalve Pilot Stage Actuated by a Piezo-electric Ring Bender: A Numerical and Experimental Analysis. Energies. 2020; 13 (3):671.
Chicago/Turabian StylePaolo Tamburrano; Andrew R. Plummer; Pietro De Palma; Elia Distaso; Riccardo Amirante. 2020. "A Novel Servovalve Pilot Stage Actuated by a Piezo-electric Ring Bender: A Numerical and Experimental Analysis." Energies 13, no. 3: 671.
The authors propose a novel small-scale power plant capable of generating electricity and thermal energy from both solid and gaseous biomass, to be employed in rural electrification projects. The proposed system is based on mature and cheap technology, derived from the automotive sector, ensuring very low capital costs and minimum maintenance. The presence of an externally fired gas turbine permits to achieve great fuel flexibility and avoid possible problems of fuel supply in remote and isolated rural communities. The proposed solution makes rural communities capable of achieving energy autonomy targets, following a circular economy paradigm. Three possible configurations have been studied with a thermodynamic analysis in order to estimate system efficiency. Thanks to the reduced fixed and variable costs, the system allows to achieve performances comparable with those of other state-of-the-art technologies usually adopted for rural electrification. A prototype of the proposed system is developed at Politecnico di Bari (LabZERO).
Riccardo Amirante; Sergio Bruno; Elia Distaso; Massimo La Scala; Paolo Tamburrano. A biomass small-scale externally fired combined cycle plant for heat and power generation in rural communities. Renewable Energy Focus 2018, 28, 36 -46.
AMA StyleRiccardo Amirante, Sergio Bruno, Elia Distaso, Massimo La Scala, Paolo Tamburrano. A biomass small-scale externally fired combined cycle plant for heat and power generation in rural communities. Renewable Energy Focus. 2018; 28 ():36-46.
Chicago/Turabian StyleRiccardo Amirante; Sergio Bruno; Elia Distaso; Massimo La Scala; Paolo Tamburrano. 2018. "A biomass small-scale externally fired combined cycle plant for heat and power generation in rural communities." Renewable Energy Focus 28, no. : 36-46.
This paper reviews the state of the art of directly driven proportional directional hydraulic spool valves, which are widely used hydraulic components in the industrial and transportation sectors. First, the construction and performance of commercially available units are discussed, together with simple models of the main characteristics. The review of published research focuses on two key areas: investigations that analyze and optimize valves from a fluid dynamic point of view, and then studies on spool position control systems. Mathematical modeling is a very active area of research, including computational fluid dynamics (CFD) for spool geometry optimization, and dynamic spool actuation and motion modeling to inform controller design. Drawbacks and advantages of new designs and concepts are described in the paper.
Paolo Tamburrano; Andrew R. Plummer; Elia Distaso; Riccardo Amirante. A Review of Direct Drive Proportional Electrohydraulic Spool Valves: Industrial State-of-the-Art and Research Advancements. Journal of Dynamic Systems, Measurement, and Control 2018, 141, 1 .
AMA StylePaolo Tamburrano, Andrew R. Plummer, Elia Distaso, Riccardo Amirante. A Review of Direct Drive Proportional Electrohydraulic Spool Valves: Industrial State-of-the-Art and Research Advancements. Journal of Dynamic Systems, Measurement, and Control. 2018; 141 (2):1.
Chicago/Turabian StylePaolo Tamburrano; Andrew R. Plummer; Elia Distaso; Riccardo Amirante. 2018. "A Review of Direct Drive Proportional Electrohydraulic Spool Valves: Industrial State-of-the-Art and Research Advancements." Journal of Dynamic Systems, Measurement, and Control 141, no. 2: 1.
A reaction mechanism, suitable for simulating the lubricant oil influence on the combustion process of gasoline-like fuels, is developed. The proposed work is motivated by evidences reported in the literature highlighting that lubricant oil droplets can be the most likely inducer of pre-ignition phenomena, as well as the fact that lubricant oil can represent the main source of very fine soot particles emitted from the engine. In other words, the mixture of fuel and lubricant oil, through complex physical and chemical reactions involving long hydrocarbons chains, can auto-ignite before the spark timing or, if not the case, can become one of the major candidates in the generation of soot precursors. Therefore, developing a reliable reaction mechanism able to simulate the oil-fuel mixture behavior and contribution in terms of pre-ignition and soot formation is fundamental for predicting the onset of knocking phenomena and particle size distributions of soot emissions. In this study, surrogate components reproducing the lubricant oil propensity to ignition were first identified. A detailed reaction mechanism was then developed and validated starting from existing mechanisms proposed for the single species. In particular, alkanes ranging from C16 to C18 were selected as oil surrogates. Zero-dimensional numerical simulations were conducted in order to validate the proposed mechanism versus literature experimental data aimed at reproducing the effect of commercial lubricants on ignition propensity of gasoline-like fuels. From this analysis it was possible to define a suitable composition of the surrogate mixture proposed to model lubricant oil effects.
E. Distaso; R. Amirante; G. Calò; P. De Palma; P. Tamburrano; R.D. Reitz. Investigation of Lubricant Oil influence on Ignition of Gasoline-like Fuels by a Detailed Reaction Mechanism. Energy Procedia 2018, 148, 663 -670.
AMA StyleE. Distaso, R. Amirante, G. Calò, P. De Palma, P. Tamburrano, R.D. Reitz. Investigation of Lubricant Oil influence on Ignition of Gasoline-like Fuels by a Detailed Reaction Mechanism. Energy Procedia. 2018; 148 ():663-670.
Chicago/Turabian StyleE. Distaso; R. Amirante; G. Calò; P. De Palma; P. Tamburrano; R.D. Reitz. 2018. "Investigation of Lubricant Oil influence on Ignition of Gasoline-like Fuels by a Detailed Reaction Mechanism." Energy Procedia 148, no. : 663-670.
The objective of the present work is to provide an exhaustive characterization of size distributions and number density of the particles emitted from a modern EURO-VI heavy-duty 4-cylinder engine, fueled with compressed natural gas. To achieve this goal, a wide range of operating conditions (for a total of 60 operating points) were investigated during the experimental campaign. Namely, the engine speed was varied from 800 to 3500 rpm and the engine load ranged from 20 to 100% of the full-load condition. Steady-state and stoichiometric conditions were ensured during the tests. The data were collected by using two particle sample devices, located at two distinct sampling points. In particular, samples were simultaneously collected directly from the exhaust pipe, upstream of the Three-Way Catalyst (TWC) and from an exhaust gas dilution system (CVS). In the first case, a fast-response particle size spectrometer (DMS500) was employed, while a condensation particle counter (APC489) was used in the second case. The experimental approach used in the present work allowed the identification of the correlations linking the main engine working parameters with the emitted particle levels of the tested natural gas engine. Furthermore, the use of two sampling devices located in two different positions along the exhaust stream, allowed to highlight the effects that the TWC and the dilution tunnel can produce on particulate emissions. The reported results provide more insight on the particle emission process related to natural gas engines.
E. Distaso; R. Amirante; P. Tamburrano; R.D. Reitz. Steady-state Characterization of Particle Number Emissions from a Heavy-Duty Euro VI Engine Fueled with Compressed Natural Gas. Energy Procedia 2018, 148, 671 -678.
AMA StyleE. Distaso, R. Amirante, P. Tamburrano, R.D. Reitz. Steady-state Characterization of Particle Number Emissions from a Heavy-Duty Euro VI Engine Fueled with Compressed Natural Gas. Energy Procedia. 2018; 148 ():671-678.
Chicago/Turabian StyleE. Distaso; R. Amirante; P. Tamburrano; R.D. Reitz. 2018. "Steady-state Characterization of Particle Number Emissions from a Heavy-Duty Euro VI Engine Fueled with Compressed Natural Gas." Energy Procedia 148, no. : 671-678.
This paper proposes the implementation of cost-effective commercially available automotive components in small-scale power plants for the energy generation from carbon-neutral biomass. Specifically, a turbocharger and a power turbine of turbo-compound systems are proposed to be coupled with an external combustor and a high temperature heat exchanger in order to obtain a cheap externally fired gas turbine capable of producing about 30 kW of electrical power from the combustion of pruning residues. The externally fired gas turbine cycle can be combined either with a final heat exchanger to generate useful thermal power or with a bottoming cycle to generate useful thermal power and an additional electrical power of about 15 kW. Two plant configurations are proposed for the bottoming cycle: the first is a water Rankine cycle employing the “green steam turbine” as the steam expander, whereas the second is an organic Rankine cycle using an axial turbine and toluene as the working fluid. The results of the simulations, obtained through a detailed thermodynamic model, show that the use of a combined cycle is fundamental to maximize the primary energy savings of the power plant. In the case of negligible pressure losses, the use of a bottoming water Rankine cycle leads to a maximum second law efficiency of about 0.25 and maximum primary energy savings of about 0.23. Instead, a bottoming organic Rankine cycle employing a single stage turbine can increase the second law efficiency and the primary energy savings up to about 0.27 and 0.26, respectively. It is also demonstrated that the use of a two-stage turbine for the organic Rankine cycle can further enhance the plant performance. The effects of the pressure drops in the system are investigated in detail to point out that the minimization of the pressure losses is fundamental to improve the performance parameters of all the proposed configurations.
Riccardo Amirante; Pietro De Palma; Elia Distaso; Paolo Tamburrano. Thermodynamic analysis of small-scale externally fired gas turbines and combined cycles using turbo-compound components for energy generation from solid biomass. Energy Conversion and Management 2018, 166, 648 -662.
AMA StyleRiccardo Amirante, Pietro De Palma, Elia Distaso, Paolo Tamburrano. Thermodynamic analysis of small-scale externally fired gas turbines and combined cycles using turbo-compound components for energy generation from solid biomass. Energy Conversion and Management. 2018; 166 ():648-662.
Chicago/Turabian StyleRiccardo Amirante; Pietro De Palma; Elia Distaso; Paolo Tamburrano. 2018. "Thermodynamic analysis of small-scale externally fired gas turbines and combined cycles using turbo-compound components for energy generation from solid biomass." Energy Conversion and Management 166, no. : 648-662.
Riccardo Amirante; Elia Distaso; Silvana Di Iorio; Davide Pettinicchio; Paolo Sementa; Paolo Tamburrano; Bianca Maria Vaglieco. Experimental Investigations on the Sources of Particulate Emission within a Natural Gas Spark-Ignition Engine. SAE Technical Paper Series 2017, 1, 1 .
AMA StyleRiccardo Amirante, Elia Distaso, Silvana Di Iorio, Davide Pettinicchio, Paolo Sementa, Paolo Tamburrano, Bianca Maria Vaglieco. Experimental Investigations on the Sources of Particulate Emission within a Natural Gas Spark-Ignition Engine. SAE Technical Paper Series. 2017; 1 ():1.
Chicago/Turabian StyleRiccardo Amirante; Elia Distaso; Silvana Di Iorio; Davide Pettinicchio; Paolo Sementa; Paolo Tamburrano; Bianca Maria Vaglieco. 2017. "Experimental Investigations on the Sources of Particulate Emission within a Natural Gas Spark-Ignition Engine." SAE Technical Paper Series 1, no. : 1.
R. Amirante; P. De Palma; E. Distaso; M. La Scala; P. Tamburrano. Experimental prototype development and performance analysis of a small-scale combined cycle for energy generation from biomass. Energy Procedia 2017, 126, 659 -666.
AMA StyleR. Amirante, P. De Palma, E. Distaso, M. La Scala, P. Tamburrano. Experimental prototype development and performance analysis of a small-scale combined cycle for energy generation from biomass. Energy Procedia. 2017; 126 ():659-666.
Chicago/Turabian StyleR. Amirante; P. De Palma; E. Distaso; M. La Scala; P. Tamburrano. 2017. "Experimental prototype development and performance analysis of a small-scale combined cycle for energy generation from biomass." Energy Procedia 126, no. : 659-666.
Riccardo Amirante; Elia Distaso; Paolo Tamburrano. Novel, cost-effective configurations of combined power plants for small-scale cogeneration from biomass: Design of the immersed particle heat exchanger. Energy Conversion and Management 2017, 148, 876 -894.
AMA StyleRiccardo Amirante, Elia Distaso, Paolo Tamburrano. Novel, cost-effective configurations of combined power plants for small-scale cogeneration from biomass: Design of the immersed particle heat exchanger. Energy Conversion and Management. 2017; 148 ():876-894.
Chicago/Turabian StyleRiccardo Amirante; Elia Distaso; Paolo Tamburrano. 2017. "Novel, cost-effective configurations of combined power plants for small-scale cogeneration from biomass: Design of the immersed particle heat exchanger." Energy Conversion and Management 148, no. : 876-894.
R. Amirante; E. Distaso; P. Tamburrano; R.D. Reitz. Analytical Correlations for Modeling the Laminar Flame Speed of Natural Gas Surrogate Mixtures. Energy Procedia 2017, 126, 850 -857.
AMA StyleR. Amirante, E. Distaso, P. Tamburrano, R.D. Reitz. Analytical Correlations for Modeling the Laminar Flame Speed of Natural Gas Surrogate Mixtures. Energy Procedia. 2017; 126 ():850-857.
Chicago/Turabian StyleR. Amirante; E. Distaso; P. Tamburrano; R.D. Reitz. 2017. "Analytical Correlations for Modeling the Laminar Flame Speed of Natural Gas Surrogate Mixtures." Energy Procedia 126, no. : 850-857.
R. Amirante; P. De Palma; E. Distaso; M. La Scala; P. Tamburrano. Design of a novel open space test rig for small scale wind turbine. Energy Procedia 2017, 126, 628 -635.
AMA StyleR. Amirante, P. De Palma, E. Distaso, M. La Scala, P. Tamburrano. Design of a novel open space test rig for small scale wind turbine. Energy Procedia. 2017; 126 ():628-635.
Chicago/Turabian StyleR. Amirante; P. De Palma; E. Distaso; M. La Scala; P. Tamburrano. 2017. "Design of a novel open space test rig for small scale wind turbine." Energy Procedia 126, no. : 628-635.
R. Amirante; E. Distaso; P. Tamburrano; Antonello Paduano; D. Pettinicchio; M.L. Clodoveo. Acoustic cavitation by means ultrasounds in the extra virgin olive oil extraction process. Energy Procedia 2017, 126, 82 -90.
AMA StyleR. Amirante, E. Distaso, P. Tamburrano, Antonello Paduano, D. Pettinicchio, M.L. Clodoveo. Acoustic cavitation by means ultrasounds in the extra virgin olive oil extraction process. Energy Procedia. 2017; 126 ():82-90.
Chicago/Turabian StyleR. Amirante; E. Distaso; P. Tamburrano; Antonello Paduano; D. Pettinicchio; M.L. Clodoveo. 2017. "Acoustic cavitation by means ultrasounds in the extra virgin olive oil extraction process." Energy Procedia 126, no. : 82-90.
The aim of this paper is to investigate the thermodynamic performance of a novel small-scale power plant that employs a combined cycle for the energy generation from carbon-neutral biomass, such as pruning residues. The combined cycle is composed of an externally fired Joule Brayton cycle followed by a bottoming steam cycle. The topping cycle has the unique particularity of being composed of a cost-effective turbocharger taken from the automotive industry, in place of a more expensive commercial micro-turbine. The turbocharger can be either directly connected to the electric generator (after a few modifications) or coupled (without modifications) with a power turbine moving the generator. The use of solid biomass in the proposed plant is allowed by the presence of an external combustor and a gas-to-gas heat exchanger. The warm flue gases exhausted by the topping cycle are used in a bottoming cycle to produce steam, which can power a steam expander. This paper thermodynamically assesses the novel combined cycle in the configuration for the topping cycle that employs a turbocharger coupled with a power turbine capable of generating 30 kW of electrical power. Furthermore, the comparison between the performance obtained using the bottoming water Rankine cycle and a bottoming Organic Rankine Cycle is provided
R. Amirante; P. De Palma; E. Distaso; A.M. Pantaleo; P. Tamburrano. Thermodynamic analysis of a small scale combined cycle for energy generation from carbon neutral biomass. Energy Procedia 2017, 129, 891 -898.
AMA StyleR. Amirante, P. De Palma, E. Distaso, A.M. Pantaleo, P. Tamburrano. Thermodynamic analysis of a small scale combined cycle for energy generation from carbon neutral biomass. Energy Procedia. 2017; 129 ():891-898.
Chicago/Turabian StyleR. Amirante; P. De Palma; E. Distaso; A.M. Pantaleo; P. Tamburrano. 2017. "Thermodynamic analysis of a small scale combined cycle for energy generation from carbon neutral biomass." Energy Procedia 129, no. : 891-898.