Essays about: "aska"

Showing result 1 - 5 of 63 essays containing the word aska.

  1. 1. Thermal degradation of PFAS in solid matter

    University essay from KTH/Kemi

    Author : Tuqa Al-Badri; [2024]
    Keywords : PFAS; PFOS; PFOA; thermal degradation; sewage sludge; PFAS; PFOS; PFOA; termisk nedbrytning; avloppsslam;

    Abstract : Per- och Polyfluorerade alkylsubstanser (PFAS) är syntetiskt framställda organiska föreningar som har använts i stor utsträckning i konsument- och industriprodukter. PFAS-substanser besitter attraktiva egenskaper såsom resistans mot väta, fett, fläckar och är dessutom värmetåliga. READ MORE

  3. 2. Evaluation of five hardwood species from Zambia to produce fuel pellets for cooking purposes : Study with a single pellet press including pellet production, post production testing and X-ray examinations

    University essay from Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Author : Annika Silvennoinen; [2023]
    Keywords : Pelletizing; Pellet Production; Wood Species; X-Ray examinations; Pelletisering; Pelletstillverkning; Träslag; Röntgenundersökningar;

    Abstract : 81% of the population in sub-Saharan Africa relies on charcoal and firewood to cover their energy needs for cooking. In Africa charcoal is usually produced by burning tree in a traditional kilns and then the food is cooked with a carbon-fired stoves indoors. READ MORE

  4. 3. Particulate matter analysis from engine outlet in heavy-duty diesel vehicles : A study of soot reactivity, morphology and ash-to-soot ratio from the outlet of 6-cylinder and 8-cylinder diesel engines.

    University essay from KTH/Kemiteknik

    Author : Tayisiya Vlasenko; [2023]
    Keywords : Diesel engine; particulate matter; kinetics; soot; heavy-duty vehicles; Dieselmotor; partiklar; kinetik; sot; tunga fordon;

    Abstract : De ökande luftföroreningarna i Europa är ett allvarligt miljöproblem, och vägtransporterna är en av de största orsakerna till detta. För att ta itu med detta problem och uppfylla nya utsläppskrav måste efterbehandlingssystemen för avgaser förbättras. READ MORE

  5. 4. Waste-derived hard carbon anode materials for sodium-ion batteries : The potential of using cardboard as precursor material in sodium-ion batteries for hard carbon production in Sweden

    University essay from KTH/Materialvetenskap

    Author : Axel Björlin; Alexander Hansson; Yanxi Lucie Zhou; [2023]
    Keywords : ;

    Abstract : In recent years, sodium ion batteries (SIBs) have emerged as a strong contender to lithium-ion batteries (LIBs). The most promising anode for the SIBs is hard carbon (HC), which can be derived from a wide variety of raw materials and waste globally. READ MORE

  6. 5. Developing an Environmentally Friendly Approach for Ash Removal in Hard Carbon Anodes

    University essay from KTH/Materialvetenskap

    Author : Diwen Wang; [2023]
    Keywords : Hard carbon; Acid wash; Biochar; Sodium-ion battery; Hårt kol; Syratvätt; Biokol; Natriumjonbatteri;

    Abstract : Hard carbon is regarded as one of the most promising anode materials for sodium-ion battery. However, the ash content of the hard carbon anode inherited from the precursor have several negative impacts on the electrochemical performance of hard carbon. READ MORE