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 10 of 10 for “"Air-Cooled Condensers"”.
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Steam condensation in flattened-tube air-cooled condensers
Air-cooled condensers for power plants are an alternative to closed-cycle wet cooling with a condenser and cooling tower pair. Air-cooled condensers cool the process steam by forced-convection of air, replacing the water evaporation found in traditional power-plant designs. Air-cooled condensers …
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Vortex generator arrays in air-cooled condensers for power plant applications
… of the lower and upper limits of the air velocity range between 1-5 m/s in a typical air-cooled condenser (ACC) system. The effects of interacting and non-interacting vortices on the Nusselt number and pressure drop are observed for the two Reynolds numbers. The low-Re cases flow …
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Development of a process modelling methodology and condition monitoring platform for air-cooled condensers
Air-cooled condensers (ACCs) are a type of dry-cooling technology that has seen an increase in implementation globally, particularly in the power generation industry, due to its low water consumption. Unfortunately, ACC performance is susceptible to changing ambient conditions, such as dry bulb …
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Heat transfer and visualization in large flattened-tube condensers with variable inclination
… this study was designed for use in a power-plant air-cooled-condenser array with forced convection of air. The tube was cut in half lengthwise and covered with a polycarbonate viewing window. The half tube had inner dimensions of 214mm x 6.3mm and a length of 10.72m. The viewing window allowed …
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A study of organic Rankine cycle systems with the expansion process performed by twin screw machines
… power output are highly dependent on the ambient air temperature when using air-cooled condensers. Allowing for a small degree of subcooling at the condenser exit, it is shown that the heat recovery should be maximised.
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Effect of inclination on pressure drop and flow regimes in large flattened-tube steam condensers
… of steam in a large flattened tube used in air-cooled condensers (ACC) for power plants. Steam with mass flux of about 7 kg m-2 s-1 was condensed inside a 10.7 m long, flattened test tube with inclination angle varied from horizontal up to 70o. The original full-sized steel tube was cut in …
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Simulating the performance of the 24 ft. installed MinWaterCSP axial flow fan
Air-cooled condensers (ACCs) are used in thermoelectric power plants as dry-cooling solutions which reduce a plant’s reliance on water to cool the working fluid. These condenser systems use arrays of large diameter axial flow fans to discharge heat to the ambient air. However, assessing the …
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Augmentation of Jet Impingement Heat Transfer on a Grooved Surface Under Wet and Dry Conditions
… cooling technique approach was proposed by using air jets impinging on a grooved surface with the grooves containing water. The approached is proposed and evaluated experimentally for its feasibility as an alternative for cooling towers of thermoelectric power plants. Convection heat and mass …
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Application of probabilistic deep learning models to simulate thermal power plant processes
… input features, including the excess air ratio, steam temperatures, flow rates and pressures are used to predict the HTCs. In the second case study, an encoder-decoder mixturedensity network (MDN) is developed using recurrent neural networks (RNN) for the prediction of utility-scale …
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Increasing the Heat Transfer on a Grooved Surface Under Dry and Wet Conditions by Using of Jet Impingement
… to hybrid cooling technique is proposed using air jets which impinge on a triangular grooved surface with dry grooves and grooves containing water. One major application is for condensers of thermoelectric power plants. The heat and mass transfer analogy were successfully used to evaluate the …