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Showing 1 to 15 of 15 for “"Steam flow"”.
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A Calculation Model for Steam Property Variation Along Wellbore Trajectory in SAGD Process
Steam-Assisted Gravity Drainage is an effective approach for recovering heavy oil and bitumen and its essence idea is to introduce steam heat into cold reservoir and reduce oil viscosity. In a typical SAGD process, two horizontal wells were drilled inside the target formation, one is put on the top …
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Impact of degradation of the moisture separators on the overall performance of the moisture separator reheater in a nuclear power plant
… separator reheater (MSR) component used in a steam cycle in a nuclear power plant, to reduce the risk of erosion of the low-pressure (LP) turbine and to improve cycle efficiency. The performance and optimisation of moisture separators is well studied in literature; however, there have been few …
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Modeling Of USS Gasification To Evaluate New Gasifier Design In Aspen Plus
<p>Evaluation of ultra-superheated-steam (USS) gasification efficiency of coals to produce hydrogen enriched syngas is the research motive of this joint project between the University of North Dakota and Ohio University. A new USS bubbling fuidized bed gasifier was built in Ohio and several tasks …
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Hardware-in-the-loop simulation of pressurized water reactor steam-generator water-level control, designed for use within physically distributed testing environments
… to represent digital sensing and control of steam generator water-level. The model was created with an intention to serve as a component within a larger, distributed digital systems conceptual testing facility. In the present application, a software model simulates a nuclear pressurized water …
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Flow of steam through rectangular ports
Made available in DSpace on 2017-11-30T22:45:58Z (GMT). No. of bitstreams: 2 5960049.pdf: 5132576 bytes, checksum: 150144a7c4c9c5a0de0423a19147ad45 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1900
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The Production of Activated Carbon from North Dakota Lignite
… using a fluid bed reactor was investigated. Steam was used as the activating agent and was- reacted with carbonized lignite at elevated temperatures. The reaction was performed in a fluidized bed type reactor 1 l/2" in diameter and 24" in length.</p><p>Tests indicate that activated carbon …
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Heat transfer and visualization in large flattened-tube condensers with variable inclination
… experimental study of convective condensation of steam in a large, inclined, finned tube is presented. This study extends previous work in the field on inclined, convective condensation in small, round tubes to large, non-circular tubes with low inlet mass flux of vapor. The steel condenser tube …
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An investigation of some design factors of a steam jet refrigeration unit
… the performance characteristics of the 2-1/2 ton steam jet refrigeration unit. The first series of tests was run to determine the nozzle position relative to the throat of the diffuser at which best performance was obtained. This series included tests with two methods of introducing the warm water …
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Energy Recovery from Oil Sands Reservoirs
… injected high pressure and temperature saturated steam into the reservoir. One such process, Steam-Assisted Gravity Drainage (SAGD), has been proven to produce bitumen, but due to steam generation has high emissions intensity with large energy requirements. The research presented here studied the …
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Comprehensive throughflow method for steam turbine development
Wetness formation in condensing nozzle flow has been well researched and very good agreement has been achieved between theory and experimental measurements. However, condensation in steam turbines is much more complex and optical measurements show a much broader droplet spectrum than in nozzles and …
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Steam temperature and flow maldistribution in superheater headers
Heat exchangers and steam headers are at the heart of any boiler and are susceptible to a range of failures including tube leaks, ligament cracking, creep and fatigue. These common forms of header failure mechanisms can be exacerbated by local thermal stresses due to temperature and flow …
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Fabrication and robustness testing of superhydrophobic nanostructured surfaces for enhanced jumping condensation
… of failure mechanisms. These setups consist of a flow setup to observe resistance to shear flows from internal condensation steam flow, a droplet impingement setup to test mechanical durability, and an elevated temperature condensation chamber to characterize thermal stability. Methods for …
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Physically Realistic Rendering of Complex Materials Using Wave optics
… textures both on the water surface and in the steam coming from a cup of hot tea. Iridescence on the water surface is caused by droplets levitating above the surface, and interference between light scattered by drops and reflected by the water surface, known as Quetelet scattering, is essential …
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A methodology for integrated thermofluid modelling of radiant superheaters in steady state and transient operations
… for the convective thermal resistance on the steam side, the conductive thermal resistances of the tube wall and scaling or fouling on the tube walls, as well as the convective and radiative thermal resistances and direct radiation on the flue gas side. The model captures the physical layout …
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Study on configuration and operation strategies of solar aided power generation plant
… is used to displace the heat of the extraction steam in a regenerative Rankine cycle (RRC) power plant to preheat the feedwater to the boiler. The displaced extraction steam can, therefore, expand further in a steam turbine to generate power. The research and development of SAPG technology …