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Heliostat Cost Reduction for Power Tower Plants - Bok av Arvind Sastry Pidaparthi - Häftad

Heliostat Cost Reduction for Power Tower Plants - Bok av Arvind Sastry Pidaparthi - Häftad

Heliostats typically contribute to about 40 % of the total installed costs in a concentrated solar power (CSP) tower plant. The objective of this study is to investigate the effects of heliostat size on the levelized cost of electricity (LCOE). These effects are analysed in a power tower with a net capacity of 100 MWe with 8 hours of thermal energy storage in Upington, South Africa. A large, medium and a small sized heliostat with a total area of 115.56 m2, 43.33 m2 and 16.69 m2 respectively are..

SEK 1046.00
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Power Relations in Courtroom Discourse - Bok av John Mutambwa & Nhamo Kutsaru - Häftad

Power Relations in Courtroom Discourse - Bok av John Mutambwa & Nhamo Kutsaru - Häftad

The study was conducted to analyse power relations in courtroom discourse with reference to trial transcripts at Mt Darwin Magistrate¿s Court. The objectives of the study were to describe the power relations that exist between the courtroom participants. In addition, this study made an analysis of how language is used as a symbol of power in courtroom interactions. The study adopted a qualitative approach and used participant observation as a data gathering technique. The analytical framework used..

SEK 740.00
1

Enhancement of the Power Quality and Power Factor in Power System - Bok av Jambulingam Vikramarajan - Häftad

Enhancement of the Power Quality and Power Factor in Power System - Bok av Jambulingam Vikramarajan - Häftad

The Sinusoidal Pulse Width Modulation controlled active filter is used for enhancement of the power quality and power factor in three phase power systems. Active power filters are widely used for elimination of non-sinusoidal currents. Active filter is designed to cancel harmonics generated by nonlinear loads using a pulse width modulated rectifier topology. The pulse width modulated control of the active filter allows independent control of lower order harmonics for improvement of the power quality..

SEK 616.00
1