Sökning: "elevated CO2"

Visar resultat 1 - 5 av 32 uppsatser innehållade orden elevated CO2.

  1. 1. SOIL GROSS NITROGEN MINERALISATION AND FOREST GROWTH IN FOUR HEMIBOREAL FOREST STANDS IN SOUTHWEST SWEDEN

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Linnéa Eriksson; [2023-04-20]
    Nyckelord :soil C:N; forest production; 15N isotope dilution; gross N mineralisation; ammonium; soil carbon; soil nitrogen; root exudates; stoichiometric decomposition; boreal forests; priming; microbial C limitation;

    Sammanfattning : Boreal and temperate forests together make up the largest terrestrial net C sink in the world. They take up carbon dioxide (CO2) from the atmosphere and store it in plant biomass and soil as they grow, making them crucial in mitigating global climate change. LÄS MER

  3. 2. Förbättrad biogaspotential med hydrokol som additiv : En laborativ studie om metanproduktion

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

    Författare :Maria Kristoffersson; [2023]
    Nyckelord :Anaerobic Digestion; AMPTS; Batch; Biogas; Hydrochar; Hydrothermal Carbonisation; Anaerob rötning; AMPTS; Satsvis; Biogas; Hydrokol; Hydrotermisk karbonisering;

    Sammanfattning : Anaerob rötning är en naturlig nedbrytningsprocess av organiskt material som tar tillvara på avfall samtidigt som nyttig energi kan utvinnas. På Biogasbolaget AB i Karlskoga omvandlas substrat som matavfall, gödsel och ensilage till biogas som sedan kan uppgraderas till fordonsgas. LÄS MER

  4. 3. Negative Emission from Electric Arc Furnace using a Combination of Carbon capture and Bio-coal

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Abhijith Namboodiri Kapothanillath; [2023]
    Nyckelord :EAF; Off-gas handling; CCS; Calcium Looping CaL ; Post-combustion; Waste heat recovery; Bio-coal; Negative emissions; Techno-economic analysis; EAF; Avgasrening; CCS; Calcium Looping CaL ; Efterförbränning; Återvinning av spillvärme; Biokol; Negativa utsläpp; Teknisk-ekonomisk analys;

    Sammanfattning : Steel is one of the most essential metals in the world, and it plays a vital role in various industries. The growing demand for steel has resulted in increased CO2 emissions, with the steel industry contributing to approximately 7% of global emissions of carbon dioxide. LÄS MER

  5. 4. Beware of your neighbour : the effects of intraspecific interactions and CO2-level on the plant growth of two Barley cultivars

    Kandidat-uppsats, SLU/Dept. of Plant Protection Biology

    Författare :Nadja Nyberg; [2023]
    Nyckelord :Barley; Salome; Fairytale; cultivar mixture; pure stand; intraspecific competition; plant-plant interactions; competitive ability; elevated CO2;

    Sammanfattning : Plants have evolved several ways to sense what is going on around them. They can detect possible competitors by picking up on airborne Volatile Compounds emitted from neighbouring plants. The cues can induce growth responses that enhances the competitive ability of the receiver. LÄS MER

  7. 5. Techno-economic fesibility of a hybrid CSP (sCO2) - PV plant for hydrogen production

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Patricia Perez De La Calle; [2023]
    Nyckelord :Soec oxide electrolyzer cell SOEC ; Concentrated solar plant CSP ; Super critical cO2 sCO2 ; photovoltaic field PV ; Thermal storage TES ; electrolyzer; MoSES; high temperature electrolysis THE .;

    Sammanfattning : The global need to eliminate CO2 emissions and its consequent reduction in the use of fossil fuels drives the ongoing energy transition that highly involves the research achievements of the scientific community to reach the goals of this purpose. Renewable sources like photovoltaic and wind energy, are central to this endeavor, however, the intermittency of natural resources makes it non-dispatchable and energy storage is fundamental. LÄS MER