Yassine Allani's research while affiliated with Eawag: Das Wasserforschungs-Institut des ETH-Bereichs and other places

... The rapid growth of the world's population, industrialization, and development in developing countries have all contributed to a significant increase in global energy consumption [1,2]. The solar power market has grown rapidly in the past decade [3,4] and is the fastest growing renewable energy technology both in the US and globally [5][6][7][8]. ...

... Ideally, ISCCs exhibit both the CO 2 emissions reductions of solar thermal energy with the flexibility and dispatchability of a natural gas combined cycle (NGCC) [5,7,8]. While several studies have examined the benefits of individual ISCC systems [9][10][11][12][13][14], or even compared several system designs [15][16][17][18][19], optimization work remains scarce. Some initial optimization work [20,21] has demonstrated tradeoffs between capital investment and long-term economics, but did not consider dynamic system operations or detailed system design. ...

... The structure of the cycle has a single volumetric turbine stage involving an organic fluid with the high temperature kept constant while the lower temperature is variable. The condensation of the organic fluid does not take place at ambient temperature but at a temperature higher than that required by the absorption machine [1,3,4,5] and it is also subject to the average ∆ ℎ . The efficiency can be expressed by the following model where parameters and 1 are determined experimentally. ...

... The concept was initially proposed by Luz Solar International (Johansson et al. [1]). Early studies were based on the PTC technology of SEGS (Solar Energy Generating Systems) plants installed in California [2][3][4]. At the beginning of the century, the research in the field spread out as a result of the installation of some plants thanks to subsidies provided by the agency Global Environment Facility to countries such as Egypt, Morocco, India and technologies. ...

... ț the SEGS power plants in California [4] with electric powers between 30 and 80 MWe, which are based on cylindro-parabolic concentrators with additional fossil fuel burners or natural gas boilers to supply a steam cycle, ț the Integrated Solar Combined Cycle Power System (ISCCS), such as PAESI [5][6][7] or ISSCS-Nevada, USA [8,9] based on efficient combined cycles with a better fuel conversion efficiency and reduced electricity production costs (by as much as 42%) compared to the present SEGS plants [4], and ț concepts using high efficiency parabolic solar concentrators, delivering solar heat at an exergy level sufficient to preheat or to fully heat the compressed air of the gas turbine of a combined cycle or to supply heat for endothermic fuel reforming [10]. ...