Sökning: "Mats Ullmar"

Hittade 2 avhandlingar innehållade orden Mats Ullmar.

1. 1. On fiber alignment mechanisms in a headbox nozzle

   Författare :Mats Ullmar; KTH; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

3. 2. Improved energy efficiency in double disc chip refining

   Författare :Dino Muhic; Per Engstrand; Lars Sundström; Mats Ullmar; Christer Sandberg; Hans Höglund; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermomechanical pulping TMP ; double disc refining; high intensity; Chemical engineering; Kemiteknik;

   Sammanfattning : The electrical energy consumption in thermomechanical pulping (TMP) is very high, in the range of 2 – 3 MWh/adt depending on process solution and on the product quality specifications for the paper product. Both pulpwood and energy prices have increased rapidly for some time. LÄS MER