BARBERIS S.

Pumped thermal energy storage (PTES) is a promising long-duration energy storage technology. Nevertheless, PTES shows intermediate round-trip efficiency (RTE—0.5 ÷ 0.7) and significant CAPEX. sCO2 heat pumps and power cycles could reduce PTES CAPEX, particularly via reversible and flexible machines. Furthermore, the possibility to exploit...

In a scenario driven by non-programmable renewable energy sources (RES) being integrated into the grid, there is a critical need for large-scale energy storage solutions for maintaining grid stability and providing services of frequency regulation as being currently provided by conventional thermal power plants. Among various options, Carnot...

The industrial sector is a major source of wealth, producing about one-quarter of the global gross product. However, industry is also a major emitter of CO2 and it represents a key challenge towards achieving the worldwide CO2 emission reduction targets. Nowadays, about 22 % of the overall energy demand is heating for the industrial sector,...

Interest in supercritical CO2 power cycles is constantly increasing, showing good efficiency, and promising competitive costs and enhanced flexibility with respect to competing systems. Some project within the EU Horizon 2020 program have studied these systems and aim to demonstrate them in large scale, following the example of the STEP project...

The growing integration of renewable energy sources in the energy grid presents challenges related to intermittency and negative pricing, necessitating large-scale energy storage solutions. Pumped Thermal Energy Storage (PTES) is an innovative system designed to address these issues by storing and delivering substantial energy in the form of...

A novel high-temperature heat pump (HTHP) exploiting low-temperature waste heat is presented, which is enabled by two-phase compressors and expanders without the need for any requirement of external electric power. The investigation involves a sensitivity analysis at the design point, considering the concurrent variation of five independent...

Starting from a state of the art of CSP plants and the undergoing research in hybridization of Gas Turbine plants, the paper investigates alternative plant configurations particularly regarding the integration of CSP technology with mixed cycles because of their low water consumption and the possible use of current CSP components, assessed and...

This paper investigates the integration of Concentrating Solar Power technology in air-steam Mixed Cycles for power production. Starting from a state of the art of CSP plants and the undergoing research in hybridization of Gas Turbine plants, the paper investigates alternative plant configurations particularly regarding the integration of CSP...

The interest in off-shore multi-purpose platforms resides in the wide opportunities involved in it, for example considering the development of large marine infrastructure in the near future. An available off-shore site where testing marine energy converters (exploitation of wave, tidal and hydrokinetic energy, magnetohydrodynamic generator,...

The conversion of ocean wave power into sustainable electrical power represents a major opportunity to Nations endowed with such a kind of resource. At the present time the most of the technological innovations aiming at converting such resources are at early stage of development, with only a handful of devices close to be at the commercial...