Operating characteristics of a 15 W free-piston Stirling generator

Sun, Dan; Zhang, Jie; Ge, Sishun; Shen, Qian; Linghu, Jianshe; Qi, Yu

doi:10.1016/j.applthermaleng.2022.118412

Cited by 12 publications

(6 citation statements)

References 38 publications

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“…For linear generator designs, the transient simulation solution module was recommended due to scenarios involving changes in translator velocity. Electromagnetic problems can be modelled in 3D and 2D; 2D was chosen in this study as it will allow results to be compared with the studies in the literature [14, 18, 21, 40, 42]. The 3‐D model creates more solution networks by considering the actual model of the design and the solution time increases.…”

Section: Linear Generator Design and Optimizationmentioning

confidence: 99%

“…Note that self‐inductance is high and mutual inductance is low. Output power can be increased by compensating inductance with a series capacitor [9–41].…”

Section: Linear Generator Design and Optimizationmentioning

confidence: 99%

“…Sun et al. [14] investigated the operating properties of a 15‐W Stirling generator numerically and experimentally. A further study focused on a 100‐W generator design [15].…”

Section: Introductionmentioning

confidence: 99%

“…They examined this in terms of power and efficiency based on temperature data. Sun et al [14] investigated the operating properties of a 15-W Stirling generator numerically and experimentally. A further study focused on a 100-W generator design [15].…”

Section: Introductionmentioning

confidence: 99%

“…Also the inner diameter and thickness of the magnet have been investigated in relation to the change of the moving weight [39]. Single-phase generator designs have mostly been considered for small power Stirling engine systems [14,15,39,40]. Different magnet array structures have been investigated for single-phase permanent magnet tube-type generators [40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Linear generator design for concentrating solar power technologies: Optimization and prototype development

Arslan,

Akkaya Oy

2023

IET Renewable Power Gen

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An alternative way to generate electricity from solar energy is through the use of generators comprising Stirling engines with a parabolic collector. This study describes a parabolic collector with Stirling engine and investigates the design of a linear mobile generator for these systems. Especially for direct drive in free piston mechanisms proposed for these systems, linear generators are important due to their advantages such as compact structure, light weight, high efficiency and high power intensity. Although conventional one‐phase and three‐phase multi slot/pole models are widely available in the literature, three phase is considered for lower PM cost and to reduce the cost of power electronics and 3/2 slot/pole combination is considered for high speed and frequency. In this study, a new 3/2 slot/pole three‐phase tube‐type linear generator was designed and evaluated for performance and manufacturability. Objective functions were defined for power and efficiency increase to reduce generator power ripple, and the results of Mixed‐Integer Sequential Quadratic Programming, Multi‐Objective Genetic Algorithm (MOGA), and Screening methods were compared and examined. Performance of the two‐dimensional and optimized models was evaluated in terms of induced voltage, power density, efficiency, and output power. The best results were found with MOGA compared to other methods. When compared with the initial value, there was a 97.3% increase in power density for a 32.4% increase in moving weight. Moreover, the efficiency of the MOGA model is improved by 16.2% compared with the initial model. Additionally, significant improvements were shown in terms of thrust coefficient, voltage coefficient, power, and no‐load voltage. A prototype of the model was made and a motor‐driven crank mechanism system was used in place of the Stirling engine to undertake practical measurements.

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Section: Linear Generator Design and Optimizationmentioning

confidence: 99%

“…Note that self‐inductance is high and mutual inductance is low. Output power can be increased by compensating inductance with a series capacitor [9–41].…”

Section: Linear Generator Design and Optimizationmentioning

confidence: 99%

“…Sun et al. [14] investigated the operating properties of a 15‐W Stirling generator numerically and experimentally. A further study focused on a 100‐W generator design [15].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%