Essays about: "cumulative energy use"

Showing result 11 - 15 of 18 essays containing the words cumulative energy use.

  1. 11. Pulse Electric Field as a Pre-treatment Method of Wastewater Sludge prior to Anaerobic Digestion

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Milton Matilde; [2020]
    Keywords : PEF; AD; biogas yield; sludge pre-treatment; water engineering; environmental engineering; avloppsteknik; vattenförsörjningsteknik; Technology and Engineering;

    Abstract : This work analyzed the impact caused by different intensities of Pulsed Electric Fields (PEF) pre-treatment on the biogas production from small-scale anaerobic digesters of wastewater sludge under thermophilic conditions. PEF technology consists of passing the substrate through an electric field which generates a potential difference across the cells, resulting in electroporation. READ MORE

  3. 12. Life cycle analysis on phase change materials for thermal energy storage.

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Elin Johansson; Filip Norrman; [2019]
    Keywords : ;

    Abstract : Sustainable energy sources and utilization is a large area of interest and the developments are moving fast. Recently, thermal energy storage in the form of phase change materials other than water have caught more interest and a need of analysis for the entire life cycle of the materials have appeared. READ MORE

  4. 13. Determining the primary energy demand and greenhouse gas emission of carrots : Comparing organic and conventional small scale carrot production and supply in Sweden

    University essay from SLU/Dept. of Energy and Technology

    Author : Isac Jazin Jareborg; [2019]
    Keywords : LCA; GWP; CED; value chain; agriculture;

    Abstract : This study assessed the environmental performance of organic and conventional carrots produced and supplied in Sweden, as well as mapping out and describing the local carrot production and supply in Sweden to lay the roundwork for a decision support, primarily aimed at Swedish farmers and consumers. A life cycle assessment (LCA) methodology with the system boundary from carrot cultivation to consumer gate and a functional unit (FU) of 1 kg of carrots at the farm was applied, using the LCA software SimaPro 8. READ MORE

  5. 14. Will different pretreatment methods influence the biogas production of seaweeds

    University essay from Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Author : YINING WU; [2018]
    Keywords : methane; seaweed; pretreatments; anaerobic digestion;

    Abstract : Global warming along with energy demand and rising prices of natural energy resources have motivated studies to find some renewable and clean energy. The use of algae as third generation biofuel can avoid the competition for farmland and algae can be considered as a potential future source of renewable energy. READ MORE

  6. 15. Setting the seeds for a green growth -A Study of biofuel development in Indonesia’s transport sector

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Sophia Aaman; Johan Henrik Hessel Lundberg; [2017]
    Keywords : Multi-Level Perspective; Long-range Energy Alternatives Planning; Biofuels for transport; Indonesia; Barriers.;

    Abstract : Climate change poses as one of the major environmental issues on a global scale today, with one of the largest contributor to the climate change being the greenhouse gas (GHG) emissions. GHG emissions in turn is known to a large extent originate in anthropogenic energy use, especially fossil fuel usage. READ MORE