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 62 for “"cooling water"”.
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MODEL BASED SYSTEMS ENGINEERING APPROACH FOR COLLABORATIVE REQUIREMENTS IN COOLING WATER SYSTEM DESIGN
Evaluation of the manufacturing process industry confirms that there is still manual exchange of product data between design and procurement engineers and equipment suppliers. Manual data exchange incurs human error, increases the cost, and takes more time. Also manual data exchange prevents …
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Asymmetric flow measurement in space constrained cooling water ducts using a traversing probe
The aim of this research was to identity and recommend a type of flow measurement technique suitable for flow measurements in the CW ducts. After conducting a literature survey, the author restricted research to a local flow measuring technique as a result of physical constraints on site. In …
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The ecology of tropical marine mussels and their control in industrial cooling water systems
Contains fulltext : mmubn000001_23740298x.pdf (Publisher’s version ) (Open Access)
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An Advanced Methodology to Enhance Energy Efficiency and Performance in a Hospital Cooling-Water System
… and quality. Due to the critical role of cooling-water systems, this thesis focuses on these installations that are vital for both the comfort they provide through airconditioning and for healthcare activities. The objective of this research is to improve the performance of hospital …
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Moderation of high-energy fast neutrons in beryllium from a tokamak fusion reactor and heat transfer to the cooling water system
… transfer through the model is performed and the cooling capacity of the coolant channels via convective heat transfer is explored.
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Evaluation of Heat Rejection Strategies for Liquid Desiccant Air-Conditioning Systems
The increased demand for space cooling and the resulting summer peak in electrical demands are motivating research into thermally-driven air-conditioning systems that can use renewable or waste heat. One promising technology is the use of a Liquid Desiccant Air-Conditioning (LDAC). An evaporative …
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Managing impacts of hydrological droughts and heat waves on thermal power plants
The withdrawal, discharge, and consumption of water, used in thermal power plant cooling processes, is a leading driver of thermal pollution in waterways, and can contribute to water allocation challenges. Conversely, the reliance of thermal generation on large amounts of cooling water at suitable …
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A study of the high speed diesel engine exhaust with respect to gas composition and smoke density
… composition at various engine speeds, loads, and cooling water temperatures was made on an International Harvester UD-6 Diesel Engine. Simultaneously, smoke density was measured with a smokemeter, the principle of which was based on the obstruction of light. Exhaust gases were analyzed with a …
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Emissions testing of two recreational marine engines with water contact in the exhaust stream
Recreational marine engine operation effects water quality as well as air quality. Significant quantities of hydrocarbons are discharged into the rivers, lakes, and estuaries used as recreational boating waters. In order to investigate the impact of recreational marine engine operation on water …
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A water and greenhouse gas inventory for hygroscopic and conventional evaporative building-scale cooling systems
Freshwater scarcity is a major threat to the resilience of our society, and the challenges are only being exacerbated by the worsening impacts of climate change. The U.S. Department of Defense's Environmental Security Technology Certification Program demonstrated a novel heating, ventilation, and …
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Extracting fluid properties through high-speed video analysis
… in the surface tension to density ratio for cooling water, and for water versus glycerol.
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Assessment of the effects of impingement and entrainment on the fish community of the New River, Virginia
The loss of organisms to cooling water intakes has been identified as having an impact on aquatic biota. Impingement and entrainment of organisms are unavoidable if natural waters are to be used by utilities for cooling water purposes. This study was initiated to determine the effects of operation …
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FOULING AND ITS MITIGATION ON HEAT EXCHANGER SURFACES BY ADDITIVES AND CATALYTIC MATERIALS
… the most commonly observed fouling phenomenon in cooling water applications. Fouling happens when a process uses cooling water supersaturated with mineral salt crystals (i.e. hard water). Precipitation deposits on heat transfer surfaces whenever these inversely-soluble salt crystals, like …
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Development of model for large-bore engine cooling systems
… to present on the development and results of the cooling system logic tree and model developed as part of the Pipeline Research Council International, Inc (PRCI) funded project at the Kansas State National Gas Machinery Laboratory. PRCI noticed that many of the legacy engines utilized in the …
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Effects of flow orientation on condensation in tubes
… by rejecting the heat to a counterflow of cooling water. The heat transfer measurements are obtained along the inner wall of an 11.89-mm i.d. and 1,259.84-mm long stainless steel tube. ^ For vertical downflow, the film at very low FC-72 flow rates is observed to be both smooth and laminar. …
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An absolute calorimeter for the measurement of high radiation flux
… performance of the calorimeter is independent of cooling water flow rates. The calorimeter was also used to study the flux distribution of the arc-image furnace in the Mechanical Engineering Department. The radiation flux at the optimum point of the arc-image furnace, as measured by the …
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Hollow fiber sorbents for the desulfurization of pipeline natural gas
… of sulfur selective sorbent 'fillers'. Steam and cooling water can be utilized to thermally swing the sorbent during the regeneration cycles. An impermeable, thin polymer barrier layer on the outside of fiber sorbents allows only thermal interactions with the regeneration media, thereby promoting …
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Design of an apparatus to experimentally verify filmwise condensation theory on small diameter horizontal tubes
… was devised to insulate the test specimen and cooling water from the rest of the apparatus to obtain an accurate measure of the heat transfer rate. The surface temperature of the tubes was directly measured by copper-nickel thermocouples which were electroplated onto the tube. Initial testing …
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A Dynamic Model Of The Human/cooling System/clothing/environment System
… also lead to substantial heat stress. Personal cooling is widely used to alleviate heat stress, especially for those situations where ambient environmental cooling is not economically viable or feasible. It is important to predict the physiological responses of a person wearing PPE with personal …
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Hydrogen migration in monoclinic ZrO₂ and the effects of defects and dopants assessed by first-principles calculations
… hydrogen during service because of corrosion in water. This is one of the degradation processes that challenge the safe operation of nuclear reactors. Composition of commercial zirconium-based alloys has been developed experimentally, aiming to improve corrosion and hydrogen resistance. The …
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