Sökning: "downdraft gasifier"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden downdraft gasifier.

1. 1. Investigation of the Effects of Introducing Hydrodynamic Parameters into a Kinetic Biomass Gasification Model for a Bubbling Fluidized Bed

   Master-uppsats, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

   Författare :Daniel Andersson; Martin Karlsson; [2014]
   Nyckelord :Gasification; Gasifier; Biomass; Bubbling fluidized beds; Reaction kinetics;

   Sammanfattning : Biomass is an alternative to fossil fuels that has a lower impact on the environment and is thus of great interest to replace fossil fuels for energy production. There are several technologies to convert the stored energy in biomass into useful energy and this thesis focuses on the process of gasification. LÄS MER

3. 2. Modeling and exergoeconomic analysis of biomass gasification in a downdraft gasifier

   Uppsats för yrkesexamina på avancerad nivå, KTH/Skolan för kemivetenskap (CHE)

   Författare :Santiago Rabell Ferran; [2013]
   Nyckelord :Biomass; Cogeneration; Downdraft gasification; Exergoeconomic analysis; Modelling;

   Sammanfattning : In this work it is presented an equilibrium model, capable to predict the composition of the generated gas, its Lower Heating Value (LHV), the gasification efficiency, the ratio air/biomass and the  ratio gas/biomass in a downdraft gasifier. The model describes the influence of  the moisture content of the biomass and the gasification temperatures on the composition and properties of the produced gases, like the low heating value (LHV). LÄS MER

4. 3. Assessment of Power Production Possibilities in Two Sawmills in La Palma, Cuba

   Master-uppsats, KTH/Kraft- och värmeteknologi

   Författare :Malin Fuglesang; [2012]
   Nyckelord :Power; electricity generation; sawmill; Cuba; bioenergy; renewable energy; gasification; asseradero; Cuba; electricidad; energía; gasificación; bioenergía; fuentes renovables;

   Sammanfattning : The Cuban power sector with its heavy dependency on foreign oil is in much need of investment and development. In the past decade, the Cuban government launched an ‘energy revolution,’ the Revolución energética, which aims at generating electricity from renewable sources. LÄS MER

5. 4. Optimization of the performance ofdown-draft biomass gasifier installedat National Engineering Research &Development (NERD) Centre ofSri Lanka

   Master-uppsats, KTH/Kraft- och värmeteknologi

   Författare :Duleeka Gunarathne; [2012]
   Nyckelord :Renewable Energy; Biomass Gasification; Downdraft Gasifier;

   Sammanfattning : Using biomass gasification to produce combustible gas is one of the promising sustainable energy optionsavailable for many countries. At present, a few small scale community based power generation systemsusing biomass gasifiers are in operation in Sri Lanka. LÄS MER

7. 5. Assessment of Pollution Levels Resulting from Biomass Gasification

   Master-uppsats, KTH/Kraft- och värmeteknologi

   Författare :Emmanuel Menya; [2012]
   Nyckelord :producer gas cooling; condensate; PAHs; BTEX; CGCMSD; carcinogenic; toxic; downdraft gasifier;

   Sammanfattning : Today the large scale introduction of biomass gasification is hampered by health, safety and environmental issues which present a major barrier in the deployment of this technology. The condensate in particular resulting from producer gas cooling before use in gas engines is highly toxic and carcinogenic which, if not adequately controlled, can lead to detrimental impacts on human health and the environment. LÄS MER