Essays about: "carbon dioxide exchange"

Showing result 1 - 5 of 33 essays containing the words carbon dioxide exchange.

  1. 1. Insulated Metabolic Exchange for Sustainable Agriculture and Biotechnology

    University essay from KTH/Industriell bioteknologi

    Author : Ellen Engquist; [2023]
    Keywords : Biofertilisers; nitrogen; cyanobacteria; E. coli; allantoin; Biogödsel; kväve; cyanobakteria; E. coli; allantoin;

    Abstract : Mellan 1960 och idag har världspopulationen dubblerats medan matproduktionen tredubblats. Det har möjliggjorts av kemiskt framställda gödsel som introducerades på mitten av 1900-talet. Sedan 1965 har användandet av kvävegödsel ökat sexdubblet. READ MORE

  3. 2. Characterisation of Ionic Liquid doped Polybenzimidazole Membranes for Application in High-Temperature Proton Exchange Membrane Fuel Cells

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Adam Jacobsson Trönndal; [2023]
    Keywords : Fuel cells; Phosphoric acid; Polybenzimidazole; PA-PBI; Ionic liquid; IL; High temperature proton exchange membrane fuel cell; HT-PEMFC; Electrochemical impedance spectroscopy; EIS; IL-PBI; Chemical engineering; Technology and Engineering;

    Abstract : In this study four membranes were tested and evaluated against each other for use in high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications. A phosphoric acid (PA) doped polybenzimidazole (PBI) membrane, was used as a reference as the current state-of-the-art. READ MORE

  4. 3. Analysis of Carbon Dioxide Flux from a Tower Sensor in Abisko Sweden

    University essay from Lunds universitet/Matematisk statistik

    Author : Qiaoyin He; [2022]
    Keywords : Abisko; carbon dioxide flux; net ecosystem exchange; R-INLA; time series; Mathematics and Statistics;

    Abstract : .... READ MORE

  5. 4. CLIMATE-SMART CONCRETE APPLIED ON A SLAB FRAME BRIDGE

    University essay from KTH/Betongbyggnad

    Author : Sabina Dal; Sandra Raheb Khalo; [2022]
    Keywords : ;

    Abstract : This study examines alternative actions that are applied to an existing structure in Stockholm in order to reduce the global warming effect, in the form of carbon dioxide emissions. The structure consists of a slab frame bridge with belonging piles in the foundation, of which the building material is reinforced concrete with two different concrete types, namely concrete type C35/45 and concrete type C50/60. READ MORE

  6. 5. Developing an innovative unit of power supply to improve the sustainability of data centers : A techno economic analysis of replacing diesel generators with fuel cells as backup power generation for data centers

    University essay from Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Author : Filip Agrell; Agit Ablay; [2022]
    Keywords : Fuel Cells; Hydrogen; UPS;

    Abstract : As the amount of data centers continues to increase, their electricity consumption and emissions are being reviewed. The current backup solution is a conventional diesel generator running on fossil fuels. As part of climate goals to reduce carbon emissions, renewable energy sources like fuel cells running on hydrogen are being considered. READ MORE