Sökning: "char"

Visar resultat 21 - 25 av 128 avhandlingar innehållade ordet char.

  1. 21. Operational strategies to control the gas composition in dual fluidized bed biomass gasifiers

    Författare :Teresa Berdugo Vilches; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; segregation; renewable energy; feldspar; olivine; catalyst; ilmenite; operating conditions; tar removal; in situ gas upgrading; bauxite; steam reforming; dual fluidized bed; char gasification;

    Sammanfattning : Steam gasification of biomass can increase the share of renewable energy and material resources in the energy sector, transportation and different industries. Prior its application, the raw gas produced in biomass gasifiers needs to be cleaned from impurities. LÄS MER

  3. 22. The reactivity of char from rapid heating process under pressure : the role of the time-temperature-environment history of its formation

    Författare :Guanxing Chen; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 23. Dynamic single particle char combustion and its influence on the fate of fuel bound nitrogen : numerical modelling and experiments

    Författare :Henrik Brodén; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; carbon dioxide; two color pyrometry; experiments; nitrous oxide; single particle char combustion modelling; carbon oxide; nitric oxide;

    Sammanfattning : .... LÄS MER

  5. 24. Teleost reproduction: Aspects of Arctic char (Salvelinus alpinus) oocyte growth and maturation

    Författare :Håkan Berg; Per-Erik Olsson; Birgitta Norberg; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Zoophysiology; Salmonid; oocyte growth; vitellogenin; vitelline envelope protein; stress; cortisol; oocyte maturation; membrane receptor; Zoofysiologi; Animal physiology; Zoofysiologi; Zoophysiology; zoofysiologi;

    Sammanfattning : In all vertebrate species, reproduction is a hormonally controlled process, important for growth and maturation of gonads and germ cells. Production of functional germ cells is of outmost importance to secure the survival of a species. Fish comprises 50% of the known vertebrates and are found in aquatic habitats all over the world. LÄS MER

  7. 25. Population development of introduced Mysis relicta and impact on char and brown trout

    Författare :Per Olsén; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER