Numerical analysis of small scale axial and radial turbines for solar powered Brayton cycle application

Abstract

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A review on solar‐assisted gas turbines

“…Single stage axial, dual stage axial and single stage radial turbine were investigated in the study to compare performance and output power. The results showed that dual stage axial turbine had better performance at off design conditions while single stage radial turbine generated higher power (approximately 1.7 times greater than dual stage turbine at high pressures) at the same condition . In addition, CFD analysis was applied in studies to optimize radial turbine for solar Brayton cycles.…”

“…The results showed that dual stage axial turbine had better performance at off design conditions while single stage radial turbine generated higher power (approximately 1.7 times greater than dual stage turbine at high pressures) at the same condition. 69 In addition, CFD analysis was applied in studies to optimize radial turbine for solar Brayton cycles. Since turbine efficiency improvement leads to increase in cycle thermal efficiency (for instance, 10% increase in turbine efficiency can improve overall cycle efficiency up to 6% 70 ), Daabo et al 71 used CFD tool and one dimensional mean line approach in optimizing radial turbine for solar Brayton cycle.…”

“…Numerical simulation has been conducted on different components of cycle such as compressor, turbine, and heat receiver . Daabo et al applied computational fluid dynamic (CFD) analysis in solar Brayton cycle. Single stage axial, dual stage axial and single stage radial turbine were investigated in the study to compare performance and output power.…”

Generation of 3D Turbine Blades for Automotive Organic Rankine Cycles: Mathematical and Computational Perspectives

“…Their 1D results correlated well with the CFD results. Daabo et al [42] presented two design models for axial and radial turbines to be used in solar powered Brayton cycles. Their CFD analyses were validated against experimental work and then used to validate the mean-line models.…”

Further analysis of a compression-expansion machine for a Brayton Waste Heat Recovery cycle on an IC engine

“…In general, Brayton cycles are studied to improve the energy recovered from solar power plants. It is possible to find numerous studies about the cycle layout design for closed Brayton cycles working with CO2 in solar plants can be found [19] [20] [21], the interest of regenerative and inverse Brayton cycles [22] [23] and the turbine design for the Brayton cycle of these solar plants [24]. In addition, WHR using Brayton cycles in IC engines for industrial applications, where space requirements and dynamic conditions are less restrictive, has been studied [25].…”