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Full-Text Articles in Mechanical Engineering
A Study On Gas Penetration And Fingering Behavior In Injection Molding Of Polymer And Powder Metal Feedstock, Edna I. Orozco
A Study On Gas Penetration And Fingering Behavior In Injection Molding Of Polymer And Powder Metal Feedstock, Edna I. Orozco
Theses and Dissertations - UTB/UTPA
The effect of processing variables on the level of gas penetration in parts fabricated by gas-assisted injection molding from two different materials was compared. The materials used were polypropylene and stainless steel powder metal/thermoplastic feedstock. Software simulation and physical experiments were conducted. Taguchi analysis was used to reduce the number of experiment trials and to find the optimum processing conditions. Four different variables were changed using nine different combinations. The processing variables are the pressure, the delay time before gas is injected, the temperature of the material injected, and the amount of the material injected. The results showed that the …
An Experimental Study Of Potential Residential And Commercial Applications Of Small-Scale Hybrid Power Systems, Michael Anthony Acosta
An Experimental Study Of Potential Residential And Commercial Applications Of Small-Scale Hybrid Power Systems, Michael Anthony Acosta
Theses and Dissertations - UTB/UTPA
The research presented in this thesis provides an understanding of small-scale hybrid power systems. Experiments were conducted to identify potential applications of renewable energy in residential and commercial applications in the Rio Grande Valley of Texas. Solar and wind energy converted into electric energy was stored in batteries and inverted to power common household and commercial appliances. Several small to medium size hybrid power systems were setup and utilized to conduct numerous tests to study renewable energy prospects and feasibility for various applications. The experimental results obtained indicate that carefully constructed solar power systems can provide people living in isolated …
Thermodynamic, Heat Transfer Analysis And Simulation Of A Domestic Size, Double Stage, Lithium Bromide Absorption System, Carlos R. Lima
Thermodynamic, Heat Transfer Analysis And Simulation Of A Domestic Size, Double Stage, Lithium Bromide Absorption System, Carlos R. Lima
Theses and Dissertations - UTB/UTPA
The research presented in this thesis provides an investigation into the thermodynamic and heat transfer requirements for a, 3 ton, Water / Lithium-Bromide absorption system. Thermodynamics results for one stage and two stages absorption system are presented. Heat transfer principles provided a design guideline. Flat-plate, solar, water heaters and auxiliary devices using natural gas were analyzed as the main sources for energy inputs into the generator. Experimental data from the solar collector is provided under several configurations. A TRNSYS simulation of the overall absorption, cooling systems and its alternative energy means provided different scenarios where heating loads into the generator …