Search for dissertations about: "Self ignition"

Showing result 1 - 5 of 17 swedish dissertations containing the words Self ignition.

2. 1. Biomass Pre-treatment for the Production of Sustainable Energy : Emissions and Self-ignition

   Author : Katarina Rupar-Gadd; Mehri Sanati; Evert Ljungström; Växjö universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; terpenes; SPME; biomass; pellets; self-ignition; storage; drying; calorimetry; Chemical engineering; Kemiteknik; Bioteknik; Biotechnology;

   Abstract : Organic emissions with focus on terpenes, from biomass drying and storage were investigated by Solid Phase Microextraction (SPME) and GC-FID and GC-MS. The remaining terpenes in the biomass (Spruce and pine wood chips) after drying were dependant on the drying temperature and drying medium used. READ MORE

4. 2. Spark Ignition Combustion of Direct Injected Alternative Fuels

   Author : Lars Christian Riis Johansen; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spark ignition; optical diagnostics; internal combustion engine; stratified combustion;

   Abstract : Several technologies and modifications exist to increase the fuel efficiency of passenger vehicles in general and spark ignition engines in particular. Combining a spark ignition engine with an electric drive system in hybrid powertrain and thermodynamic cycle improvements are two such approaches with the potential to greatly reduce fuel consumption. READ MORE

5. 3. A Study of Catalytic Ignition and Kinetic Phase Transitions

   Author : Mats Rinnemo; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; catalytic ignition; catalysis; kinetic phase transitions; platinum;

   Abstract : Catalytic ignition and kinetic phase transitions are two critical phenomena which can occur in heterogeneously catalyzed reaction systems. They have in common that the system behavior changes qualitatively when a control parame-ter passes through a critical value. READ MORE

6. 4. Seasonal and Long-Term Storage of Baled Municipal Solid Waste

   Author : Diauddin Nammari; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; pollution control; Environmental technology; Analytisk kemi; Analytical chemistry; Miljöstudier; Environmental studies; Waste storage; Poly aromatic hydrocarbons PAH ; Dioxin; Self ignition; Volatile organic compounds; GC-MS; Temperature; Interpolation; Baling; Cylindrical bales; Rectangular bales; Miljöteknik; kontroll av utsläpp;

   Abstract : Baling of MSW has been extensively used in Sweden and other countries for the storage of energy (biomass for energy) for incineration and production of either and or electricity and heat. Baling is performed in two principally different ways, leading to cylindrical- or rectangular bales. READ MORE

7. 5. Transient Phenomena in CO and Hydrocarbon Oxidation over Supported Platinum Catalysts

   Author : Per-Anders Carlsson; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; mean-field kinetics simulations; ignition; environmental heterogeneous catalysis; flow-reactor studies; periodic operation; extinction; low-temperature activity; transient methods; in situ spectroscopy;

   Abstract : The aim with this thesis work was to better understand transient phenomena involved in the low-temperature oxidation of CO and hydrocarbons by oxygen over typical oxidation catalysts. Supported platinum catalysts were prepared and carefully studied under transient conditions by means of flow-reactor experiments, different in situ spectroscopic (FTIR and XANES) methods in combination with mass spectrometry and mean-field kinetics simulations. READ MORE