Essays about: "fuel index"

Showing result 1 - 5 of 37 essays containing the words fuel index.

  1. 1. The influence of climate, population density, tree species and land cover on fire pattern in mainland Portugal

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Luis Gomes; [2022]
    Keywords : GIS; forest fires; burnt Area; characteristic fire size; spatial analysis; mainland Portugal; FWI; Eucalyptus globulus; Earth and Environmental Sciences;

    Abstract : Forest fires in mainland Portugal are becoming more extreme, resulting in increasingly larger burnt areas and tragic human fatalities, as was shown by the 2017 fires. Research shows that there are many natural factors contributing to such fire vulnerability conditions, such as climate, fuel continuity, forest structure, tree species types, amongst others, that are intertwined with anthropic factors than can intensity the fire vulnerability. READ MORE

  2. 2. Analysis of Aircraft Emissions Based on Flight Trajectory : ATR 72-500 trajectory and emission study

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Gustav Forsberg; Carl-Michael Sundberg; [2022]
    Keywords : trajectory; emissions; Boeing Fuel Flow;

    Abstract : Emissions related to aviation have during the last decades become an important topic of discussion. Besides carbon dioxide ($CO_2$) which is the major pollutant from air travel, other gas emissions such as hydrocarbons ($HC$), nitrogen oxides ($NO_x$), carbon monoxide ($CO$) and sulfur oxides ($SO_x$) also need to be investigated. READ MORE

  3. 3. Parametric study on hybrid rocket propulsion system performance measured by the system specific impulse

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Adam Bussmann; [2022]
    Keywords : Hybrid; Hybrid propulsion; Hybrid propulsion system; System specific impulse;

    Abstract : Hybrid rocket motors have become of great international interest during the last couple of years. A hybrid rocket motor is propelled by the use of a solid fuel and a liquid oxidizer. The fundamental principle of the hybrid propelled system is that the liquid oxidizer is injected into a combustion chamber to enable the combustion of the solid fuel. READ MORE

  4. 4. Capacitated Multi Depot Green Vehicle Routing for Transporting End-of-Life electrical waste : A practical study on environmental and social sustainability within the field of CMDGVRP with heterogeneous fleets

    University essay from Högskolan i Halmstad/Akademin för informationsteknologi; Högskolan i Halmstad/Akademin för informationsteknologi

    Author : Karl-Johan Djervbrant; Andreas Häggström; [2021]
    Keywords : VRP; GVRP; CMDGVRP; Routing; Optimization; Environmental; Sustainability; Environmental sustainability; Social sustainability; Waste collection; Heterogeneous fleet;

    Abstract : A comprehensive study is presented of the Capacitated Multi DepotGreen Vehicle Routing Problem (CMDGVRP) applied to a heterogeneous fleet of electronic waste collecting vehicles with two objectives: to reduce the total fuel consumption of the vehicles (environmental sustainability) and to limit the continuous drive-time of the drivers (social sustainability). Research has been limited from this aspect, and in this study, the focus is on the practical application of pickup and delivery of electronic waste. READ MORE

  5. 5. Effects of the 2018 drought on mire productivity in Skogaryd - Evaluation of ground sensors, satellite data and meteorological data

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Ines Júlio Alfredo; [2021]
    Keywords : Sentinel 2; Vegetation Indices; Ground Sensors; Drought and Mire; Earth and Environmental Sciences;

    Abstract : The drought is a complex meteorological phenomenon associated with low precipitation and low water saturation in atmosphere, soils and plants and can has a great effect on aboveground biomass and change the structure and function of the ecosystems. The droughts also are known to reduce the primary and secondary productivity of vegetation. READ MORE