Sökning: "svartkol"

Hittade 2 uppsatser innehållade ordet svartkol.

  1. 1. Evaluating energy efficiency and emissions of charred biomass used as a fuel for household cooking in rural Kenya

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Energy and Technology

    Författare :Achour Nemer; [2015]
    Nyckelord :gasifier; charcoal; biochar; cooking fuel; improved cook stove;

    Sammanfattning : In sub-Saharan Africa a large share of the energy use utilize biomass as a fuel. In some countries more than 90 percent of the energy use is biomass. This energy is primarily used for cooking, heating and drying. LÄS MER

  3. 2. Tillsats av biokol till en svensk sandjord : effekter på lustgasavgång, kväveretention och andel vattenfyllda porer

    Kandidat-uppsats, SLU/Dept. of Soil and Environment

    Författare :Rickard Almers; [2009]
    Nyckelord :lustgas; N2O; denitrifikation; biokol; träkol; svartkol; kväveretention; nitratretention; ammoniumretention; klimatförändringar; CO2; koldioxid; carbon capture and storage; CCS; kolsänka;

    Sammanfattning : In a column experiment the effect of three different biochars on nitrous gas emissions, nitrogenretention and water filled pore space (WFPS) were studied in a Swedish sandy soil, classified as aCryopsamment. Ammonium retention was positively correlated, while KCl-extractable ammoniumwas negatively correlated, with the specific area of the biochars. LÄS MER