Sökning: "tomgångsspänning"
Hittade 2 uppsatser innehållade ordet tomgångsspänning.
1. Charge transfer states at polymer solar cell interfaces : Insights from atomic-scale modeling
Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)Sammanfattning : Organic solar cells (OSCs) based on non-fullerene acceptors (NFAs) have attracted a great deal of attention in recent years due to their rapidly increasing efficiency and enormous potential. In this work, the optical and electronic properties of systems containing the very promising non-fullerene acceptor PYT have been thoroughly studied with the use of the density functional theory (DFT) and the time-dependent density functional theory (TDDFT). LÄS MER
2. Dämplindningens inverkan på spänningens kurvform i en vattenkraftsgenerator
Uppsats för yrkesexamina på avancerad nivå, ElektricitetsläraSammanfattning : Harmonics are a well-known problem that has to be dealt with in the design of thegenerator. Internationally accepted standards limits the amount of harmonics allowedin the no-load voltage. These limits can be difficult to fulfill with integral slot winding,where the number of slots per pole and phase is an integer. LÄS MER