A novel concept of linear oscillatory synchronous generator designed for a stirling engine

Hadžiselimović, Miralem; Srpčič, Gregor; Brinovar, Iztok; Praunseis, Zdravko; Seme, Sebastijan; Štumberger, B.

doi:10.1016/j.energy.2019.04.187

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…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%

“…They also compared generators with moving radial magnet array, axial magnet array, flux switching, and slotless generators. A new tube-type linear generator with a high power-to-weight ratio has been proposed [27] and a double-sided implementation was carried out [28,29]. Zheng et al [30,31] examined moving iron structures.…”

Section: Introductionmentioning

confidence: 99%

“…Transverse flux machine offers low power factor and high force density mostly for low-speed systems; however, it is promising for Stirling applications [34]. Variation of leakage flux, Ld, and Lq inductance in sheet metal is possible in a double-sided linear generator [28]. However, it can be made multilateral, which will increase the output power, but also the cost.…”

Section: Introductionmentioning

confidence: 99%

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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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“…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%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Arslan,

Akkaya Oy

2023

IET Renewable Power Gen

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A review study on mathematical modeling of solar parabolic d ish‐Stirling system used for electricity generation

et al. 2021

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Summary The intensity of the solar radiations falling on the earth surface ranges between 5 and 7.5 kWh/m2/day. For the non‐directed solar thermal application, higher intensity level is required. The Concentrating Solar Power (CSP) technology incorporating reflecting mirrors reinforces the solar radiations with high intensity. It is suitable for various applications; that is, space heating, space cooling, and cooking, steam, and power generation without any polluted emissions. Meanwhile, among the various CSP technologies, the Concentrating Solar Parabolic Dish Stirling engine System (CSP‐DSS) has got attention of the research community due to its various attractive features. The output power and efficiency of the CSP‐DSS depend upon their geometrical, optical, and operating parameters. It is therefore, necessary to mathematically investigate the influence of these parameters on system performance before its design and installation. In the existing literature reported, only some specific parameters of the CSP‐DSS have been focused and considered to investigate the system performance. To the best of author's knowledge, no literature has been found to provide the mathematical modeling of all the system parameters in a single manuscript to study and investigate their influence on the system performance. Hence, this review article aims to compile, expansively review and organize the systematical mathematical modeling for all optical, geometrical, and operating parameters of the CSP‐DSS along with the system design methodology. Likewise, the effects of these parameters on the system output power and efficiency under various operating conditions have been investigated. In addition, comprehensive study of CSP‐DSS components along with their classification have been painstakingly discussed to determine optimal system configuration. Finally, the latest review study in the field of CSP‐DSS have been deeply and comprehensively discussed. This review study concludes that, the kinematic gamma type Stirling engine coupled with Permanent Magnet DC generator (PMDC) and Azimuth‐Altitude Dual Axis Tracker (AADAT) could be the better CSP‐DSS design and configuration in context of the standalone off‐grid electricity generation system.

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Study on the thermoacoustic characteristics and acoustic matching of a 15 We free-piston Stirling generator

Sun

Zhang

2023

Applied Thermal Engineering

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A novel concept of linear oscillatory synchronous generator designed for a stirling engine

Cited by 5 publications

References 23 publications

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

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

A review study on mathematical modeling of solar parabolic d ish‐Stirling system used for electricity generation

Study on the thermoacoustic characteristics and acoustic matching of a 15 We free-piston Stirling generator

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