Search for dissertations about: "led lamp"
Showing result 1 - 5 of 7 swedish dissertations containing the words led lamp.
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1. On voltage fluctuations in low voltage grids – characterization, propagation and impact on LED lamps
Abstract : The work presented focuses on voltage fluctuations produced by household devices and their impact on the light output of LED lamps. Voltage fluctuations can produce unsteadiness on the light intensity of the lamps, so-called light flicker. An observer may or may not experience light flicker, depending on e.g. READ MORE
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2. Hydrometallurgical recovery of rare earth elements from flourescent lamp waste fractions
Abstract : Recovery and reuse of materials is important for a circular economy. In recent years the recovery of critical metals from end-of-life products has received increased attention. Various streams, e.g. READ MORE
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3. Rapid solidification behaviour of Fe and Al based alloys
Abstract : Rapid solidification experiment on Fe-Cr-Mo-Mn-Si-C alloy was performed to investigate metastable phases formed during the solidification. A wide range of cooling rate was used to analyse the sample from melt spinning technique (~107 K/s) to water quenching method (~102 K/s). READ MORE
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4. Emission and interaction from domestic installations in the low voltage electricity network, up to 150 kHz
Abstract : This thesis work has focused on conducted emission (up to 150 kHz) from common lowvoltage appliances. The emphasis has been on equipment that contributes to a sustainable energy system: photovoltaic (PV) installations and energy-saving lamps (LED lamps). READ MORE
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5. Design and Fabrication of Light-Emitting Electrochemical Cells
Abstract : Glödlampan, en gång symbolen för mänsklig uppfinningsförmåga, är idag på väg att försvinna. Lysdioder och lågenergilampor har istället tagit över då dessa har betydligt längre livstid och högre effektivitet. READ MORE