Ennio Macchi
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View article: Experimental and Numerical Study of a Microcogeneration Stirling Unit under On–Off Cycling Operation
Experimental and Numerical Study of a Microcogeneration Stirling Unit under On–Off Cycling Operation Open
Stirling units are a viable option for micro-cogeneration applications, but they operate often with multiple daily startups and shutdowns due to the variability of load profiles. This work focused on the experimental and numerical study of…
View article: Off-design performance of CSP plant based on supercritical CO2 cycles
Off-design performance of CSP plant based on supercritical CO2 cycles Open
In the near future, a significant increase of the fraction of electricity produced by variable renewable energy sources (wind and PV) is expected. In this scenario, concentrating solar power (CSP) plants, thanks to the implementation of co…
View article: Cesar Deliverable D2.4.3. European Best Practice Guidelines For Assessment Of Co2 Capture Technologies
Cesar Deliverable D2.4.3. European Best Practice Guidelines For Assessment Of Co2 Capture Technologies Open
This is the original EBTF document guidelining the techno-economic modelling and benchmarking of CO2 capture technologies applied to gas and coal-fired power plants. This report is the result of a joint effort of a team of members of the C…
View article: The design of CO2-based working fluids for high-temperature heat source power cycles
The design of CO2-based working fluids for high-temperature heat source power cycles Open
The application of CO2power cycles is advantageous to exploit high-temperature sources (500-800°C) in the case of available low-temperature heat sinks (15-25°C). However, their efficiency is strongly reduced for higher heat sink temperat…
View article: Field Performance Evaluation of ORC Geothermal Power Plants Using Radial Outflow Turbines
Field Performance Evaluation of ORC Geothermal Power Plants Using Radial Outflow Turbines Open
This paper, after a brief description of the radial outflow turbine and of its main features, discloses the field performances evaluation of two operating geothermal ORC (Organic Rankine Cycle) plants installed by Exergy Spa in Turkey. The…
View article: The potential role of solid biomass for rural electrification: A techno economic analysis for a hybrid microgrid in India
The potential role of solid biomass for rural electrification: A techno economic analysis for a hybrid microgrid in India Open
This paper focuses on the design optimization of a stand-alone hybrid microgrid serving a 2000 inhabitants community located in a rural area of Bihar (India) and it investigates the potential of the use of wood biomass for electricity gene…
View article: Thermal Stability Analysis of Perfluorohexane
Thermal Stability Analysis of Perfluorohexane Open
The thermal stability analysis of perfluorohexane (C6F14) is presented in this paper as a preliminary evaluation of the potential application of the binary mixture CO2 – C6F14 as innovative working fluid for transcritical-CO2 power cycles.…
View article: Power Block Off-design Control Strategies for Indirect Solar ORC Cycles
Power Block Off-design Control Strategies for Indirect Solar ORC Cycles Open
The performance of a 5MWel indirect ORC cycle coupled to linear solar collectors with different technologies is assessed, aiming at evaluating the effect of different control strategies on annual electricity output. Two different solutions…
View article: Techno-economic optimization of a stand-alone hybrid microgrid for the rural electrification in Sub Saharan Africa
Techno-economic optimization of a stand-alone hybrid microgrid for the rural electrification in Sub Saharan Africa Open
This paper is focused on the design of a stand-alone microgrid for rural electrification. The aim of this work is to define the best mix of energy sources and the optimal size of the energy storage for a small isolated village on the Ghana…