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 24 for “"Cooling towers"”.
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Spirulina production in brine effluent from cooling towers
Submitted in fulfilment of the requirements for the Degree of Master of Technology: Biotechnology, Durban University of Technology, Durban, South Africa, 2007.
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Stability behaviour and dynamic response of cooling towers subjected to wind loading
… parametric analysis is presented for various cooling tower shell geometries. The shells are subjected to increasing wind pressures (speeds) to observe the trends in the critical buckling pressures/speeds at which the shell first buckles and the corresponding buckling modes. The cooling tower's …
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Cooling towers among ivory towers : a comparative analysis of research universities, electricity consumption, and greenhouse gas emissions
The rationale for university sustainability and existing international agreements on sustainability in higher education are reviewed in the context of developing a model to determine the linkages between three environmental impacts. It is proposed that larger university facilities draw more …
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Decentralized Wastewater Treatment and Reuse Feasibility Study for the College of Marin, Kentfield, CA
… uses, such as irrigation, flushing toilets, and cooling towers, at the College of Marin (COM) in Kentfield, CA. The 3-year average of water usage at COM is 32.4 acre-feet per year (AFY), 95% of which is for non-potable applications. Water meter data for COM was used to compare usage during winter …
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An Experimental Study of Single and Multiple Turbulent Buoyant Jets in Crossflow
… discharged from natural and mechanical draft cooling towers. Buoyant jets have been studied for many years, and as a result there exists a large body of literature on this and other related topics. An extensive review of this literature showed that there was a need for an improved laboratory …
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Optimal Allocation of Building Cooling Loads to Chilled Water Plant Equipment
… a chiller plant consisting of liquid chillers, cooling towers and pumps. To meet the changing demand for cooling, most buildings have automated systems that control the operation of the chilled water plant. The system that controls the chilling equipment selects the temperatures of the water …
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Performance tests and cooling effect distribution of the V.P.I. forced draft cooling tower
Test data of forced draft cooling towers is all too meager, and that available is, in many instances, incomplete. It is the opinion of the authors that putting cooling tower design on a rational basis can be brought about only by two methods. Either complete and intensive study of all existing …
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Investigation of shell and axisymmetric shell structures
… the natural frequencies and mode shapes of cooling towers whilst explicitly including the effects of leg supports and foundation elasticity, C. E. G. B. pub. No. RD/L/P 10/76. 2. Nelson, R. L., and Hellewell, J. S., * Vibration tests on a 1/250th scale model of Didcot cooling tower, C. E. G. …
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Augmentation of Jet Impingement Heat Transfer on a Grooved Surface Under Wet and Dry Conditions
Array jet impingement cooling experiments were performed on flat and grooved surfaces with the surface at a constant temperature. For the flat surface, power and temperature measurements were performed to obtain convection coefficients under a wide range of operating conditions such as jet speed, …
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Conceptual design of an SOx scrubber system utilizing plant waste
The use of ash pond water and cooling tower blowdown as possible SO<sub>x</sub> scrubber liquors has been studied. Information on analysis of ash pond water indicates that this method may be feasible. lt was found that ash from the furnace contained salts which could be used to absorb …
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Development of a Model and Optimal Control Strategy for the Cal Poly Central Plant and Thermal Energy Storage System
… which are comprised of pumps, chillers, cooling towers, and a thermal energy storage tank. The model is calibrated to the actual measured performance of the plant using the current control strategy as a baseline. By observing and quantifying areas for potential improvement in plant …
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Design and analysis of a natural draft direct dry cooling system for a supercritical carbon dioxide power cycle for CSP application
Natural draft direct dry cooling systems (NDDDCSs) offer a modern alternative to conventional dry cooling systems such as mechanical draft direct air coolers or natural draft indirect dry cooling systems. This technology combines the benefits of both, promising reduced auxiliary power consumption, …
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Design and application of a bench scale evaporator for the treatment of coal power plant waste water
… of alleviating the amount of heat energy the cooling towers must dissipate to some extent, thus lowering the amount of cooling water needed, and this should be investigated. Thus, a combination of membrane technology and thermal technology could theoretically be utilised in order to adhere to …
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Structural Investigation of Negative Gaussian Curvature Shells as Liquid-Storage Vessels
… world in application in the energy industry as cooling towers supported on the large surface area on the ground (Zingoni, 2018). Hyperboloid of revolution shell has been found to resist self-weight stresses better when used as a cooling tower, and it is constructed to heights up to 200m or even …
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Applied Control Strategies at a Cogeneration Plant
<p>The purpose of this paper is to demonstrate the effectiveness of “classical strategies for dynamic control” on authentic cogeneration processes. These strategies are applied to several processes at the University of Connecticut’s cogeneration plant. Case studies of their applications are …
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Environmental regulation of the growth, physiology and virulence of <i>Legionella pneumophila</i>
… to species level. <br></br><br></br>Evaporative cooling towers are a significant source of Legionnaires' disease accounting for the majority of outbreak cases in the United Kingdom. In the second part of this study a microbiologically-contained, fully-functional evaporative cooling tower was …
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