• Development and modeling of a solar powered ground source heat pump system 

  Qian, Defeng (University of Alabama Libraries, 2017)

  Buildings consumed 40% of the energy and represented 40% of the carbon emissions in the United States. This is more than any other sector of the U.S. economy, including transportation and industry. Most building energy ...
• Surface integrity and energy consumption in machining of inconel 718 produced by selective laser melting 

  Brown, Daniel James (University of Alabama Libraries, 2017)

  The development of additive manufacturing (AM) in the past decade has brought along with it a number of new opportunities and challenges when it comes to how parts are manufactured. While this development represents an ...
• Microstructure and mechanical properties of additively manufactured parts with staircase feature 

  Keya, Tahmina (University of Alabama Libraries, 2017)

  This thesis focuses on a part with staircase feature that is made of Inconel 718 and fabricated by SLM process. The objective of the study was to observe build height effect on the microstructure and mechanical properties ...
• Design and control of powered transtibial prostheses 

  Zheng, Hao (University of Alabama Libraries, 2017)

  The primary purpose of lower extremity prostheses is to restore the locomotive functions of amputees’ lost sections and joints. The objective of this dissertation is to develop energetically active transtibial (TT, also ...
• Uncertainty quantifications and operation optimization of buildings as virtual batteries for the grid with high penetrations of renewables 

  Niu, Fuxin (University of Alabama Libraries, 2017)

  In the United States, 40% of the nation’s total energy consumption and 75% of the total electricity consumption are consumed by commercial and residential buildings, and those numbers are projected to be 46% and 80% by ...
• YSZ-Ceria for chemical looping syngas production 

  Chattopadhyay, Abhirup (University of Alabama Libraries, 2017)

  The increase of carbon footprint over the years is a serious cause of concern for mankind in recent times. As a consequence, carbon capture and sequestration has been given unprecedented focus. Chemical looping combustion ...
• Development of a high-fidelity engine modeling framework in Simulink with automated combustion parameter tuning 

  Thompson, Bradley Adam (University of Alabama Libraries, 2017)

  The automotive industry continually seeks to improve performance and fuel efficiency due to increasing fuel costs, consumer demands, and greenhouse gas regulations. With advancements in computer-aided design, engine ...
• Commissioning of high speed imaging system for rainbow schlieren measurements of vaporizing liquid fuel sprays 

  Mirynowski, Eileen Marie (University of Alabama Libraries, 2016)

  The fuel injection process has been studied since the internal combustion engine was developed. Direct injection has been an integral part to the success of diesel engines, where there is minimal time for the fuel to mix ...
• Circuit optimization for enhancing the output power of a piezoelectric energy harvester 

  Zargarani, Anahita (University of Alabama Libraries, 2016)

  The goal of this research is to investigate electrical circuits for piezoelectric energy harvesting, and proposing an electrical interface to enhance the output power of a piezoelectric energy harvester. Following this is ...
• Processing-surface integrity-fatigue relationship in electrical discharge machining of nitinol shape memory alloy 

  Liu, Jingfu (University of Alabama Libraries, 2016)

  Nitinol is a nearly equiatomic nickel-titanium shape memory alloy (SMA) with two unique properties, i.e., thermal shape memory and superelasticity. Nitinol has broad applications in medical device, aerospace, actuator, ...
• Thermal and thermomechanical studies of beam-based powder-bed additive manufacturing processes 

  Cheng, Bo (University of Alabama Libraries, 2016)

  Powder-bed beam-based metal additive manufacturing (AM) such as electron beam additive manufacturing (EBAM) and selective laser melting (SLM) has a potential to offer innovative solutions to many challenges faced in the ...
• Energy consumption and process sustainability of hard milling 

  Liu, Ziye (University of Alabama Libraries, 2015)

  Energy consumption becomes a serious concern for manufacturing industry because it not only consumes substantial amounts of energy and materials but also produces huge amount of greenhouse CO2 emissions. With the drive for ...
• Surface integrity of laser cutting nitinol shape memory alloy 

  Fu, Chenhao (University of Alabama Libraries, 2015)

  Every year, millions of people experience new or recurrent stroke or heart attack. Cholesterol plaque buildup is the culprit for these fatal diseases. One standard procedure to treat these diseases is inserting a stent ...
• Fuel flexible clean combustion of liquid fuels by a novel twin fluid atomization 

  Niguse, Yonas Goitom (University of Alabama Libraries, 2015)

  Research on alternative fuel combustion systems is important to address global energy and environmental concerns. Renewable fuels, such as biofuels have attracted significant attention as potential sources to achieve energy ...
• Linear, nonlinear and networked-based vibration control of smart flexible structures 

  Omidi, Ehsan (University of Alabama Libraries, 2015)

  Flexible structures are one of the most frequently used elements in different systems. They can be easily shaped to any desired form, they are light-weight, relatively inexpensive, and they have the required mechanical ...
• On temperature measurements and analysis in electron beam additive manufacturing using near infrared thermography 

  Price, Steven Wynne (University of Alabama Libraries, 2014)

  Powder-based electron beam additive manufacturing (EBAM) is a type of additive manufacturing (AM) that utilizes an electron beam to sequentially melt cross-sections of the desired part in a bed of metal powder. There is ...
• Real-time heat flux estimation using filter based solutions for inverse heat conduction problems 

  Najafi, Hamidreza (University of Alabama Libraries, 2015)

  Real-time heat flux measurement has great significance in numerous applications such as metal heat treating, quenching, fire safety tests, furnace operation, thermal therapy and more. Direct measurement of heat flux is not ...
• Computational modeling to study the effect of fuel pre-treatment on IC engine combustion control 

  Dantuluri, Venkateswara Raju (University of Alabama Libraries, 2015)

  Conventional internal combustion (IC) engine combustion strategies such as homogeneous charge spark ignition (HCSI) and stratified charge compression ignition (SCCI) engines have nearly reached their maximum performance ...
• Finite element analysis of machining damage in manufacturing ceramic implants 

  Sun, Dongwei (University of Alabama Libraries, 2015)

  Ceramics are popular biomaterials used to manufacture orthopedic implants due to their excellent biomechanical properties. The inherent high hardness and brittleness of ceramics make precision machining of implants very ...
• Design, theory, development and testing of a new form of steam power generation – the practical steam engine 

  Tolbert, Joshua Aaron (University of Alabama Libraries, 2015)

  A new form of steam power generation, a Practical Steam Engine (PSE), is analyzed. This product focuses on applications of power generation from steam with insufficient flow and/or pressure reduction for efficient steam ...

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