Search for dissertations about: "Mechanical Pre-Treatment"

Showing result 1 - 5 of 30 swedish dissertations containing the words Mechanical Pre-Treatment.

2. 1. Reduction of refining energy during mechanical pulping : using pressurised chip compression and sulphite pre-treatment

   Author : Erik Nelsson; Geoffrey Daniel; Mittuniversitetet; Sveriges lantbruksuniversitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Chip pre-treatment; double disc refiner; energy efficiency; Impressafiner; low dosage; Norway spruce; refining intensity; single disc refiner; sulphite pre-treatment; thermomechanical pulp;

   Abstract : The effects of pressurised compressive chip pre-treatment and low dosage sulphite pre-treatment were evaluated for production of thermomechanical pulp in mill scale trials using Norway spruce (Picea abies) at the Braviken paper mill (Holmen Paper AB, Sweden). The general aim of the study was to improve the energy efficiency during the production of mechanical pulps suitable for news and improved news grade papers. READ MORE

4. 2. Mitigating Off-Gassing and Self-Heating in Fuel Wood Pellets Storage : A Raw Materials Selection and Pre-Treatment Centred Approach

   Author : Workson Siwale; Jonas Berghel; Gunnar Henriksson; Michael Finell; Stefan Frodeson; Mani Sudhagar; Karlstads universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; solid biofuels; densified biomass; heat generation; off-gas emissions; carbon monoxide; carbon dioxide; methane; fatty and resin acids; Miljö- och energisystem; Environmental and Energy Systems;

   Abstract : Wood pellets have become a preferred solid biomass fuel for heat and power generation due to their standardized nature, known properties, and consistent quality. However, pellets produced from fresh sawdust sometimes undergo self-heating and off-gassing during storage. This poses a challenge for their transportation and storage. READ MORE

5. 3. Industrially Pre-Treated Potatoes (Solanum tuberosum L.) Served in Large-Scale Food Service Systems

   Author : Klara Sjölin; Avdelningen för livsmedel och läkemedel; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Potatoes Solanum tuberosum L. ; large-scale food service system; Industrial pre-treatment; subsurface hardening; Potatoes Solanum tuberosum L. ; subsurface hardening; industrial pre-treatment; large-scale food service systems;

   Abstract : In Swedish schools, a warm lunch is served every day. The lunch is prepared in a largescale food service system and includes steam-cooked potatoes several times per week. The potatoes are often industrially pre-treated to facilitate the handling and logistics required to cook hundreds of meals in a couple of hours. READ MORE

6. 4. A study of the adhesion strength of plasma sprayed coatings

   Author : M. Fouzi Bahbou; Högskolan Väst; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Grit blasting; Thermal spraying; Coating; Surface pre-treatment; Surface roughness; Fractal analysis; Adhesion strength; Mechanical anchoring; Protal® process; Splat; Manufacturing engineering; Produktionsteknik; Metallurgical process and manufacturing engineering; Metallurgisk process- och produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik;

   Abstract : .... READ MORE

7. 5. The effects of fines content and hydrogen sulphide gas pre-treatment on kraft pulping and the strength of polysulphide pulps

   Author : Elisabet Brännvall; KTH; []
   Keywords : Bleachhability; Delignification; Fines; Hydrogen sulphide pre-treatment; Kraft pulping; Mechanical properties; Polysulphide; Softwood; Yield; NATURAL SCIENCES; NATURVETENSKAP;

   Abstract : .... READ MORE