Experimental data for two different alternator configurations in a solar Brayton power system

Mason, Lee S.; Shaltens, Richard K.; Espinosa, W.D.

doi:10.1109/iecec.1997.659232

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…The Brayton PCU includes a 3 phase permanent magnet alternator (Mason, Shaltens, 1997) that produces an output voltage proportional to the alternator speed, and inversely proportional to the applied load. The output voltage is rectified with a 3 phase full wave bridge, and then filtered to provide a smooth DC output of nominally 120V.…”

Section: Power Management and Distributionmentioning

confidence: 99%

Experimental Results from a 2 kW Brayton Power Conversion Unit

Hervol¹,

Mason²,

Birchenough³

2003

AIP Conference Proceedings

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Section: Power Management and Distributionmentioning

confidence: 99%

Experimental Results from a 2 kW Brayton Power Conversion Unit

Hervol¹,

Mason²,

Birchenough³

2003

AIP Conference Proceedings

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Light source selection for a solar simulator for thermal applications: A review

Tawfik

Tonnellier

Sansom

2018

Renewable and Sustainable Energy Reviews

118

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Solar simulators are used to test components and systems under controlled and repeatable conditions, often in locations with unsuitable insolation for outdoor testing. The growth in renewable energy generation has led to an increased need to develop, manufacture and test components and subsystems for solar thermal, photovoltaic (PV), and concentrating optics for both thermal and electrical solar applications. At the heart of any solar simulator is the light source itself. This paper reviews the light sources available for both low and high-flux solar simulators used for thermal applications. Criteria considered include a comparison of the lamp wavelength spectrum with the solar spectrum, lamp intensity, cost, stability, durability, and any hazards associated with use. Four main lamp types are discussed in detail, namely argon arc, the metal halide, tungsten halogen lamp, and xenon arc lamps.In addition to describing the characteristics of each lamp type, the popularity of usage of each type over time is also indicated. This is followed by guidelines for selecting a suitable lamp, depending on the requirements of the user and the criteria applied for selection. The appropriate international standards are also addressed and discussed. The review shows that metal halide and xenon arc lamps predominate, since both provide a good spectral match to the solar output. The xenon lamp provides a more intense and stable output, but has the disadvantages of being a high-pressure component, requiring infrared filtering, and the need of a more complex and expensive power supply. As a result, many new solar simulators prefer metal halide lamps. KeywordsSolar simulator, sunlight, solar spectrum, CSP, metal halide, tungsten lamp 1 Introduction The growing demand for energy, combined with issues of environmental pollution, climate change, and the rapid depletion of fossil fuels, have encouraged the research and development of cost effective renewable alternatives [1-3]. Solar electrical and thermal energy research groups have focused on developing novel technologies and on improving existing renewable solutions. In 2014, the global combined installed capacity of solar hot water and concentrating solar power (CSP) was 410.4 GW, representing 8% of the world's renewable energy sources [4].The transient nature of solar energy represents a critical challenge for technologies testing. Outdoor experiments are carried out in real but uncontrollable environments. For example, incident solar energy levels are highly dependent on atmospheric conditions and sky clarity over time [5]. Therefore, achieving

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