Preliminary design and analysis of a novel solar receiver for a micro gas-turbine based solar dish system

Thermal Cycle and Combustion Analysis of a Solar-Assisted Micro Gas Turbine

“…This first set of computational cases refers to the same base rating conditions discussed in the previous section: The combustion development is modelled by a typical finite rate-eddy dissipation scheme that founds on a chemical kinetics set for the oxidation of the several species constituting the fuel (only the CH 4 and C 3 H 8 oxidation proceeds through two steps, i.e., partial and CO oxidation), according to Equation (1). The related reaction rates are compared with those evaluated by the turbulent mixing of the reactants, the latter estimated by a k-ε model.…”

“…Due to the interaction with the air flows from the secondary and dilution holes, the combustor behaviour approximates the one of a RQL chamber [30]. the CH4 and C3H8 oxidation proceeds through two steps, i.e., partial and CO oxidation), according to Equation (1). The related reaction rates are compared with those evaluated by the turbulent mixing of the reactants, the latter estimated by a k-ε model.…”

“…Particularly, in regions with high solar energy resources, solar power plants represent an attractive alternative solution. Solar thermal energy can play different roles in power generation and its combination with the conventional fossil-fuelled plants could reduce pollutant emissions and fuel costs [1][2][3][4][5][6][7][8][9]. Many authors have been involved in this research area, showing a renewed and growing interest in power plants operating with organic Rankine cycles, particularly the small-scale applications [10][11][12].…”

Conjugate heat transfer analysis of an impinging receiver design for a dish-Brayton system

“…The input mass flow and thermal boundary conditions for the receiver are 0.1 kg/s, 300 kPa and 500°C (Aichmayer et al, 2012). However, in order to set a security margin, 1000 W/m 2 is selected instead as the design radiation boundary condition during the impinging receiver design.…”

Charge and Discharge Analyses of a PCM Storage System Integrated in a High-Temperature Solar Receiver

“…In such receiver layouts, the WF can be heated directly by the concentrated solar radiation or there can be an intermediate medium to enhance the heat transfer process (e.g., a porous material, a fluidized bed, a corrugated structure with a wide contact surface). Relevant examples are given in the following papers [17][18][19][20][21][22]. Mostly volumetric receivers are directly heated, although the quartz window is a critical component in the device layout; it has to be strong enough at HT and relatively thin to reduce radiation absorption [23].…”