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Determination Of Mixed Hydrate Thermodynamics For Reservoir Modeling, Nagasree Garapati
Determination Of Mixed Hydrate Thermodynamics For Reservoir Modeling, Nagasree Garapati
Graduate Theses, Dissertations, and Problem Reports
Natural gas hydrates are likely to contain more carbon than in all other fossil fuel reserves combined worldwide. Most of the natural gas hydrate deposits contain CH4 along with other hydrocarbon gases like C2H 6, C3H8 and non-hydrocarbon gases like CO 2 and H2S. Thus, if CH4 stored in natural gas hydrates can be recovered, the hydrates would potentially become a clean energy resource for the next 10,000 years. The production of CH4 from natural gas hydrate reservoirs has been predicted by reservoir simulators that implement phase equilibria data to predict various production scenarios. Therefore, it is very important to …
Internal Valve Design And Response Analysis For A Circulation Control Augmented Vertical Axis Wind Turbine, Andrew J. Nawrocki
Internal Valve Design And Response Analysis For A Circulation Control Augmented Vertical Axis Wind Turbine, Andrew J. Nawrocki
Graduate Theses, Dissertations, and Problem Reports
Circulation control is an established method for increasing lift on an airfoil-shaped body. Previous research has focused on the application of circulation control to fixed-wing aircraft as well as rotorcraft; ongoing research at the Center for Industrial Research Applications (CIRA) involves the application of circulation control to vertical-axis wind turbines (VAWT). Due to size and response time constraints, one of the key technical hurdles of this application that must be overcome is the valve mechanism for controlling the airflow out of the blowing slots. A valve design consisting of a slotted, sliding gate mated to a slotted, fixed surface within …
Development Of A Coal Reserve Gis Model And Estimation Of The Recoverability And Extraction Costs, Chandrakanth Reddy Apala
Development Of A Coal Reserve Gis Model And Estimation Of The Recoverability And Extraction Costs, Chandrakanth Reddy Apala
Graduate Theses, Dissertations, and Problem Reports
The United States has the world largest coal resource and coal will serve as the major and dependable energy source in the coming 200 years or more. However, the amount of recoverable coal reserve depends on the geological formations and quality of the coal seams, future development of mining technology and the extraction cost. A NETL sponsored cooperative research was conducted by the researchers at Carnegie Mallon University (CMU) and West Virginia University (WVU) to estimate the recoverable coal reserve. This thesis presents some of the works that WVU performed to enhance the coal reserve model including characterization of coal …
Design Of A Test Stand For Alternate Fuel And Ignition Systems Testing, Patrick Wildfire
Design Of A Test Stand For Alternate Fuel And Ignition Systems Testing, Patrick Wildfire
Graduate Theses, Dissertations, and Problem Reports
There is a growing interest in improving engine versatility through the capacity to run on more than one fuel. To aid in this effort, ongoing research is being conducted to investigate a novel system using microwave plasma ignition designed with the goal of allowing spark ignited engines to run on multiple fuels. To accomplish the testing of this system, it was necessary to design and fabricate a test stand including an engine and instrumentation capable of measuring the performance of the ignition system within the environment of a running engine, and capable of testing this system on multiple fuels. It …
Rapid Characterization Of Biomass: The Use Of Near Infrared And Fluorescence Spectroscopy As Process Analytical Technology (Pat) Method, Kofi Nkansah
Graduate Theses, Dissertations, and Problem Reports
The heterogeneous property of biomass (wood) affects its potential of being converted into any form of fuel in different ways (both positive and negative effects). Therefore in other to efficiently utilized biomass as a raw material for conversion into any form of clean alternative fuel to displace some of the fossil fuel we consume in the United State on a commercial scale basis, a quick, robust, non destructive on/in/at-line method of characterizing the physical and chemical properties of biomass that are relevant to the bio-refinery industry is imperative.;This study discusses the potential of using near infrared spectroscopy (NIRS) and fluorescence …
Kinetic Analysis Of Coal And Biomass Co-Gasification With Carbon Dioxide, Jiachuan Bu
Kinetic Analysis Of Coal And Biomass Co-Gasification With Carbon Dioxide, Jiachuan Bu
Graduate Theses, Dissertations, and Problem Reports
Based on Thermogravimetric Analysis (TGA) experimental data, a kinetic analysis of the Boudouard reaction was studied for three different coal chars, three different biomass chars, and their mixtures. The coal chars included: North Dakota Lignite, Illinois No.6, and Powder River Basin char; the biomass chars included: Hardwood, Switchgrass, and Corn Stove char. The reaction temperature ranged from 900°C to 1100°C. Different kinetic models were used for modeling the reaction rate. For the simplified Dutta and Wen model, it was found that the reaction rate was first order with respect to both CO2 and carbon. For the modified shrinking sphere model, …
Agent Based Modeling Of Power Distribution Systems, Sridhar Chouhan
Agent Based Modeling Of Power Distribution Systems, Sridhar Chouhan
Graduate Theses, Dissertations, and Problem Reports
The electric power system is a very vast network and becoming more complex each day. The traditional vertically monopolistic structure has been deregulated and replaced by gencos, transcos and, discos; increasing the power system intricacy. During the past few decades there has been remarkable development in software and hardware technologies for the analysis and design activities in power system planning, operation, and control. However, much still depends on the judgment of human experts. A single fault in power system can lead to multiple faults and can collapse the whole system. Power System needs a more decentralized control mechanism for solving …
Development Of A Web-Based Woody Biomass Energy Expert System, Sabina Dhungana
Development Of A Web-Based Woody Biomass Energy Expert System, Sabina Dhungana
Graduate Theses, Dissertations, and Problem Reports
Woody biomass is evolving as a potential bioenergy feedstock at an industrial scale to provide the required supply for industries relying on these resources at necessary levels and feasible costs. In order to effectively utilize woody biomass for energy, it is essential to know in advance the availability of biomass, the equivalent energy provided, and the associated procurement costs. Expert systems, using computer based programming and containing knowledge bases reflecting the knowledge of human experts in the field, are being used in industrial facilities for real time problem analysis and knowledge enhancement. This study draws on this approach and attempts …
Effect Of Well Configurations On Productivity Index Of Gas Well Producing From Shale, Emaadeldein Abdullaay
Effect Of Well Configurations On Productivity Index Of Gas Well Producing From Shale, Emaadeldein Abdullaay
Graduate Theses, Dissertations, and Problem Reports
This study investigates the effect of various well configurations (designs) and their impact on the productivity index of shale gas wells. Five different well configurations (Multilateral wells) are compared with a single horizontal well, which is taken as a base case (BC). Both the base case and the different well configurations have the same drainage area, the initial gas in place and the total lateral lengths are equal. The data to calculate the productivity index and the modeling for the different well designs are obtained from reservoir simulation. The different flow regimes of each well configuration have been studied to …
Fuel Economy And Emissions Benefits From Diesel Fuel Additives, Geoffrey James Newlin
Fuel Economy And Emissions Benefits From Diesel Fuel Additives, Geoffrey James Newlin
Graduate Theses, Dissertations, and Problem Reports
With the spike in fuel costs during 2008, fuel consumption, and methods to reduce it, has come to the forefront of society, and recognition that inexpensive energy sources for mobile transportation may be a thing of the past. Even though fuel costs did significantly decrease by 75% after this spike [1], they will most likely continue to rise. Improvements to mobile transportation and the reduction of greenhouse gas emissions are a major agenda item of the United States and many industrialized nations. New and improved technologies will be developed and employed for future transportation needs of society. However, the existing …