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.
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Showing 1 to 20 of 44 for “"water tank"”.
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An acoustic water tank disdrometer
… from the sound of raindrops falling into a tank of water. It is known as the acoustic water tank disdrometer (AWTD).There is a direct relationship between the kinetic energy of a raindrop and the acoustic energy generated upon impact. Rain kinetic energy flux density (KE) is estimated from …
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Dynamic Testing of an Elevated Water Tank
… modal properties of a pedesphere type, elevated water tank under different operating conditions relating to the water level in the tank. The research that was conducted included both numerical and experimental components. The numerical components consisted of a simple hand calculation to identify …
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The design and construction of an open channel recirculating water tank for the study of biological hydrocarbons
… and construction of a small scale recirculating water tank for the purpose of studying biological hydrodynamics. Currently available systems were analyzed and studied prior to developing a new, cost effective design that provides laminar flow through a two foot test section. Construction details …
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Lines of Discovery
… is a reinforced concrete tower with an acrylic water tank at the top. The water tank acts as a prism casting colorful light displays both in the tower and around the site. The tank is also the source for continually falling droplets of water. The drops fall 450 feet through an open chamber to …
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Forward scattering of a pulsed continuous wave signal through laminar and turbulent thermal plumes
… sights were used. One made use of a small fresh water tank in NUWC to provide a controlled plume. The other used a larger salt water tank at WHOI to create a more realistic oceanic model. Using the Born and Rytov approximations, an estimation of the effects of the laminar plume on the propagated …
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A quasi-steady modeling approach of a heat pump water heater system with experimental validation and analysis
In a heat pump water heater system, the dynamic interdependence between the vapor compression system and the water in the storage tank poses a modeling challenge for steady-state refrigeration system models. The aim of this project is to develop a model and methodology for coupling steady-state …
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Investigating flush system method for minimum water usage of toilet system
… these days is the use and availability of clean water. With 83 million more people on Earth each year, demands for clean water will keep on rising. Water is everywhere and also important to living things on Earth. But because of the global warming and pollution, water has become deficit in many …
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Numerical and Experimental Study of Volumetric Particle Tracking Velocimetry in a Spatial and Temporal Domain
… illumination system. The tube is immersed in a water tank to compensate for the light refraction occurring at the tube boundary. A method was proposed to compensate for the light refraction at the tank boundary. Particle trajectories were reconstructed from the experiment. The velocity was …
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Development of a hybrid solar photovoltaic and heat pump system for domestic heating and electricity generation
… solar energy to heat and electricity with a water-to-water heat pump. This allows for the generation of heat and electricity on the domestic level from sunlight. The technical feasibility of the system is examined through experimental and mathematical analyses whilst the economic viability of …
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STUDYING THE PERFORMANCE OF A QUAD-GENERATION SYSTEM WITH STORAGE FOR IMPROVED ENERGY EFFICIENCY
… a compressed natural gas supply system, a hot water tank, a single-effect absorption chiller, an adsorption chiller, a solid desiccant coated heat exchanger dehumidifier, an indirect evaporative cooler, and a cooling tower constitute the main components of the Quad-generation system. The …
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Sustainability of Residential Hot Water Infrastructure: Public Health, Environmental Impacts, and Consumer Drivers
Residential water heating is linked to the primary source of waterborne disease outbreaks in the United States, and accounts for greater energy demand than the combined water/wastewater utility sector. To date, there has been little research that can guide decision-making with regards to water …
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Time and frequency domain modelling of the piezoelectric transducer
… verified extensively in computer simulations and water tank measurements of transducer profiles. Extremely close substantiation of the theoretical analyses was obtained, and the model is considered to offer significant advantages over existing transducer analogies.
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A new class of neural architectures to model episodic memory : computational studies of distal reward learning
… This simulated environment realizes the Morris Water Maze task, a well established biological experimental test of distal reward learning. The embodied neural architecture is treated as a virtual rat and the environment it acts in as a virtual water tank. Performance levels of the neural …
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Safety analysis of a compact integral small light water reactor
… analysis of a compact integral small light water reactor to examine its safety performance. Subsequently, a parametric optimization study with the goal of increasing its power density (i.e. improve its market competitiveness) while maintaining safety is performed. A model of the reactor is …
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Experimental investigation of U-Pipe evacuated tube solar collector: thermal performance enhancement methodology
… media showed U-pipe ETC achieved higher peak water temperatures, maximum of 31⁰C, than that of heat pipe, maximum 29⁰C, resulting in 13% efficiency enhancement of U-pipe ETC compared with HPETC. The results also showed more rapid heating/cooling in the U-pipe setup. To further enhance the …
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Techniques for tailoring sonar transducer responses
… a solid buffer rod in place of the more common water tank measurements.
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Quantifying dermatology : method and device for user-independent ultrasound measurement of skin thickness
… ultrasound probe linearly in 3 axes in a water tank and images a submerged arm. These images are combined into an ultrasound volume, the skin layer segmented, and the thickness extracted. One particular application is measuring progression of scleroderma, a skin thickening disease. Current …
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Design of a single element 3D ultrasound scanner
… element ultrasound transducers in a cylindrical water tank. Each transducer can independently circle about the center of the tank as well as move vertically in depth. High resolution positioning feedback (~1[mu]m) and control enables flexible positioning of the transmitter and the receiver around …
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Characterisation of radiation fields with combined fast-neutron and gamma-ray imaging
… cans, a 252Cf source stored in a steel-shielded water tank and a TRIGA test reactor core. These sources of neutrons and gamma-rays in combination with variation in shielding provided a range of scenarios which were representative of potential industrial deployments in nuclear medicine, nuclear …
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