Sökning: "Ellen Hallbäck"

Hittade 2 uppsatser innehållade orden Ellen Hallbäck.

1. 1. Reducing waste with an optimized trimming model in production planning

   Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för matematik och matematisk statistik

   Författare :Sofia Hallbäck; Ellen Paulsson; [2020]
   Nyckelord :Cutting stock problem; knapsack problem; trimming; optimization; carton board; forest industry; mathematical modeling;

   Sammanfattning : In which ways can the process of trimming dispersion coated board products be optimized so as to reduce material waste and increase production efficiency? This is the question that this master thesis report seeks to answer. In paper production, alot of waste is generated when cutting production reels into customer reels. LÄS MER

3. 2. CFD calculations and comparison with measured data in a film cooled 1.5 stage high pressure test turbine : With two configurations of swirlers clocking

   Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Författare :Ellen Hallbäck; [2018]
   Nyckelord :Turbine; CFD; Clocking configuration; Turbin; CFD; virvlareposition;

   Sammanfattning : The gas turbine has an important role for the energy distribution due to its stability and flexibility. By increasing turbine inlet temperature (TIT) an increased thermal efficiency of the turbine can be achieved. The biggest limitation of the TIT is the material of the turbine components. LÄS MER