A review of sensitivity analysis practices in wind resource assessment

Tsvetkova, Olga; Ouarda, Taha B. M. J.

doi:10.1016/j.enconman.2021.114112

Cited by 52 publications

(18 citation statements)

References 169 publications

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“…Sensitivity analysis is used to study how the uncertainty a system outputs can be allocated to different sources of input uncertainty. 49 There are many sensitivity analysis methods 50,51 capable of evaluating the influence of input variables. This study performs a sensitivity analysis based on partial derivative to distinguish influential and noninfluential input variables, thus reducing the PCE input dimension.…”

Section: Sensitivity Analysismentioning

confidence: 99%

A probabilistic life prediction framework for vibration fatigue of turbine blade based on refined polynomial chaos expansion

Fang,

Liu,

et al. 2024

Fatigue Fract Eng Mat Struct

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Vibration fatigue is a typical form of multiaxial fatigue. In this study, initial vibration fatigue tests were conducted on rocket turbine blades, and significant dispersion in fatigue life was found. Consistent with this finding, a novel probabilistic life prediction framework was proposed. This framework integrates sensitivity analysis and sequential sampling technology and introduces polynomial chaos expansion as a computationally efficient alternative to finite element analysis. And a continuous mechanics‐based damage evolution model was employed to examine the vibration fatigue life of turbine blades. The findings validate the effectiveness of the framework, as no significant difference was found between the experimental results and simulated predictions at the 95% confidence level. Furthermore, comparison with the Monte Carlo simulation indicated that this framework achieves comparable prediction accuracy, while significantly reducing the required samples by 2 orders of magnitude, which effectively addresses the fatigue problem of small sample data. This framework enables rapid and accurate multiaxial fatigue probabilistic life prediction, which holds important implications for the reliability design of reusable spacecraft.

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Section: Sensitivity Analysismentioning

confidence: 99%

A probabilistic life prediction framework for vibration fatigue of turbine blade based on refined polynomial chaos expansion

Fang,

Liu,

et al. 2024

Fatigue Fract Eng Mat Struct

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“…Indeterminacy factors included unit load, the handling capacity of the concentrates, and the temperature of the extracted flue gas. Single factor analysis was used to analyze the influence degree of unit load, the handling capacity of the concentrates, and the temperature of the extracted flue gas on C per [27]:…”

Section: Sensitivity Analysismentioning

confidence: 99%

Economic Analysis of Atomization Drying of Concentrated Solution Based on Zero Discharge of Desulphurization Wastewater

Zhao

Feng

et al. 2022

Water

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With the improvement of environmental protection requirements, more and more attention has been given to desulphurization wastewater with zero discharge in coal power plants. Atomization drying is part of the main zero discharge technologies at present. Economic analysis of the atomization drying of desulphurization wastewater is beneficial to the formulation of an appropriate operation scheme and to the reduction of operation costs. The economic analysis and sensitivity analysis of different operating conditions such as unit load, the handling capacity of concentrates, and the temperature of the extracted flue gas in the atomization drying process of concentrated desulfurized wastewater were carried out in this paper. The main cost of the drying process came from the influence of flue gas extraction on the overall heat transfer in the boiler, resulting in the decrease in power generation revenue, which can reach more than 80%. The operating cost of auxiliary machinery was relatively low. The cost of treatment for per ton of concentrates increased first and then decreased with the increase in temperature of the extracted flue gas, and it decreased with the increase in the handling capacity of the concentrates. The effect of a unit load on the treatment cost was also related to the temperature of the extracted flue gas, and the optimal flue gas temperature increase to higher temperatures as the unit load decreased. The minimum treatment costs per ton of concentrate ranged from CNY 143.54/t to CNY 158.77/t under different unit loads. Sensitivity analysis showed that the temperature of the extracted flue gas had the greatest impact on treatment cost, and its sensitivity coefficient was 0.0834. The ways in which to improve economic benefits were discussed.

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“…Renewable energy sources (RES) are considered to be the leading contenders for developments of energy systems that reduce or eliminate the use of fossil fuels and thereby decreasing their environmental impacts [1]. However, RES are usually characterized by their stochastic and intermittent natures such as solar [2] and wind [3] energies. This imposes a need to incorporate energy storage systems in order to mitigate fluctuations and provide continuous supply [4,5].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation into the potential of using a shallow ground-cooled condenser in Lebanon

Mahmoud

Alkhedher

Ramadan

et al. 2022

Energy Conversion and Management

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A review of sensitivity analysis practices in wind resource assessment

Cited by 52 publications

References 169 publications

A probabilistic life prediction framework for vibration fatigue of turbine blade based on refined polynomial chaos expansion

A probabilistic life prediction framework for vibration fatigue of turbine blade based on refined polynomial chaos expansion

Economic Analysis of Atomization Drying of Concentrated Solution Based on Zero Discharge of Desulphurization Wastewater

Experimental investigation into the potential of using a shallow ground-cooled condenser in Lebanon

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