Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 35 for “"solid fuels"”.
-
Supersonic Combustion of Solid Fuels
A direct connect, supersonic solid fuel combustor with a cavity is explored in the context of understanding characteristics related to ignition, regression rate, combustion, and flow fields for application in advancing solid fuel scramjet research. 3D printed, polymethylmethacrylate fuel grains are …
-
Novel Gel-Infused Additively Manufactured Hybrid Rocket Solid Fuels
… multiple additional advantages over conventional solid and liquid propellant systems, including: minimal environmental impact, higher density impulses, start-stop-restart capabilities, simplistic random throttle control, low development costs, and basic transportation and storage requirements. A …
-
Self-sustained combustion of low grade solid fuels in a stagnation-point reverse-flow combustor
… (SPRF) combustor geometry for burning low-grade solid fuels that are attractive for specific industrial applications because of their low cost and on-site availability. These fuels are in general, hard to burn, either because of high moisture and impurity-content, e.g. biomass, or their …
-
The impact of solid cooking fuels on the health of rural South African households
Indoor Air Pollution (IAP) from the combustion of solid cooking fuels has been proven to adversely affect the health of household residents. Those most affected by IAP are the poorest and most vulnerable members of society, specifically poor women and children residing in rural households. This …
-
Investigation of Fuel Geometry and Solid Fuel Combustion for Solid Fuel Ramjets
Solid fuel ramjets (SFRJs) are a simple means of sustaining supersonic flight. The utilization of solid fuels eliminates the need for moving parts or liquid delivery systems, and the solid fuels are typically inert, resulting in minimal handling requirements compared to solid propellants. …
-
The Makaa Project : co-design, performance testing, and techno-economics to improve a Ugandan charcoal cookstove
… in Africa, Uganda has a very high reliance on solid fuels such as firewood and charcoal. These solid fuels are used in conjunction with a variety of cooking methods, ranging from three stone fires to improved cookstoves. Appropriate Energy Saving Technologies (AEST) is a social business …
-
Solid fuel ramjet infrared signature
… fuel composition on the infrared signature of solid fueled ramjets (SFRJ). Solid fuels investigated were Plexiglas, HTPB, and HTPB with aluminum, silicon, boron carbide, and/or magnesium. They were tested at chamber pressures of 80-170 psia and with equivalence ratios between 0.3 and 1.4. With …
-
The Effects of Inorganic Solids and Certain Gases on the Thermal Decomposition of Catechol
… and iron oxide on the thermal decomposition of solid fuels, we have constructed an isothermal flow reactor to perform experiments on the model compound catechol (ortho-dihydroxybenzene), a phenol-type compound representative of coal, wood and biomass. Calcium carbonate and iron oxide are …
-
Combustion dynamics of individual reactive material particles
Metallic reactive powders are widely used as solid fuels, pyrotechnic materials, and components of enhanced blast explosives. Metals are attractive because of their high combustion enthalpies and temperatures. Quantitative descriptions of the combustion processes and mechanisms for both pure metal …
-
Design of housing for stove use monitors (SUMs) to measure adoption/
Billions of people around the globe rely on solid fuels such as wood or charcoal to heat their homes and cook their meals which negatively impacts health as well as the environment. Improved cook stoves negate these problems but are often not used over time. Stove use monitors (SUMs) are attached …
-
The demand, selection, and health impacts of household energy in Pakistan
… almost three billion people still depend upon solid fuels such as firewood, biomass, crop residues, animal dung, and coal, which are the major contributors to IAP. This thesis investigates the causal relationship between solid fuel consumption and both child mortality and life expectancy, the …
-
Field emission measurements of solid fuel stoves in Yunnan, China
… fuel addition with high PM2.5 emissions, and a solid-fuel combustion phase with low PM2.5 emissions. The average emission factors depend on the relative contributions of these phases, which are affected by the services provided by the stoves. Differences in stove and fuel characteristics that …
-
Multi-Scale Studies to Develop a Holistic Understanding of Solid Fuel Combustion at Residential Scale
<p>Nearly 3 billion people rely on solid fuels for their cooking and heating needs, classifying them as “energy poor”. This poverty can be attributed to several factors, including a lack of resources (fuel), inefficient infrastructure (production and distribution), limited purchasing power …
-
Impacts of outdoor and indoor air pollution on COVID-19 health outcomes and interventions in the Southern African development community region: a scoping review
… outdoor and indoor exposures, noting that solid fuels and poor ventilation increase respiratory risks in low-income communities. We identified key pollutants, proposed mitigation strategies, highlighted knowledge gaps, and made recommendations for air quality management during and after …
-
Technical feasibility of using spent lubricating oil as a body fuel in traditional clay brick making operations
… energy demands of this process, brick makers mix solid fuels (known as "body fuels"), clay and water, a practice that has been known to exist for centuries. Fuels that have been tried and used as body fuels in the world are coal, sawdust, sewage sludge, industrial organic waste, rice husks and …
-
Experiments in the Explosive Pulverization of North Dakota Lignite
… lignite in taking its place among the important fuels and chemical raw materials of the near future.</p> <p>The work being discussed in this paper is a part of this continuing research program. This work has been sponsored by the North Dakota Research Foundation with the cooperation of the …
-
Probabilistic Modelling of Sensitivity in Fire Simulations
… basis for the prediction of toxic effluents from solid fuels.
-
Development of Lattice-Augmented Fuels for Hybrid Rocket Applications
Hybrid rocket propulsion systems, which utilize a solid fuel and liquid oxidizer, are among the safest and simplest rocket propulsion systems that can be developed. Despite these attractive qualities, the commercialization of the technology has been slow due to difficulties associated with scaling …
-
Field measurements and atmospheric simulation chamber studies of selected biomass burning marker compounds
… climate and health. Biomass burning emits both solid particles and gaseous species known as volatile organic compounds (VOCs) which can undergo chemical oxidation reactions in the atmosphere with hydroxyl (OH) and nitrate (NO3) radicals to produce secondary organic aerosols (SOA). While the …
Page 1 of 2