Sökning: "sommerfeldt"
Hittade 3 avhandlingar innehållade ordet sommerfeldt.
1. Solar PV in prosumer energy systems : A techno-economic analysis on sizing, integration, and risk
Sammanfattning : In the transition towards a sustainable energy system, building mounted solar photovoltaics (PV) have unique benefits; they require no additional land and the energy is generated directly at load centers. Within residential buildings, multi-family homes (MFH) are particularly interesting because of the economies of scale and their greater potential for emissions reductions. LÄS MER
2. Boundary lubrication in screw-nut transmissions
Sammanfattning : This report deals with the function of screw-nut transmissions (powerscrews). Two aspects of this function have been investigated. Owing to different running parameters, primarily sliding speed and average pressure between the sliding surfaces of the thread, the coefficient of friction and the efficiency will vary within wide limits. LÄS MER
3. A proof of a resolvent estimate for plane flow by new analytical and numerical techniques
Sammanfattning : This thesis concerns stability of plane Couette flow in three space dimensions for the incompressible Navier-Stokes equations. We present new results for the resolvent corresponding to this flow. Previously, analytical bounds of the resolvent have been derived in parts of the unstable half-plane. LÄS MER