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.
Results
Showing 1 to 20 of 59 for “"Air-Cooled"”.
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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 an air-cooled, loop-type heat pipe with multiple condensers
… management needs for cooling solutions such as air-cooled heat sinks. This thesis reports the design, fabrication, and characterization of a novel loop-type heat pipe with multiple condensers for a high performance air-cooled heat sink. While multiple-condenser heat pipes have been developed in …
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Experimental and Numerical Investigations of the Thermal Environment in Air-cooled Data Centers
… predict the temperature distribution in air-cooled data centers with the aid of high quality test data. A data center research laboratory (RL) was constructed and heavily instrumented to measure power, flow rates, velocities, turbulent intensity, and temperature distribution around three …
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Development and application of low Reynolds number turbulence models for air-cooled electronics
… becoming more and more challenging to design. Air cooling of electronic components is the preferred method for many designs where the air flow is characterised as being in the laminar-to-turbulent transitional region. Over the last fifteen years there has been a dramatic take-up of …
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The numerical investogation of a bank of delta plenum air-cooled heat exchangers
Word processed copy. Includes bibliographical references (p. 102-105)
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Investigations on Air-cooled Air Gap Membrane Distillation and Radial Waveguides for Desalination
This thesis presents investigations on air-cooled air gap membrane distillation for desalination and the application of radial waveguides based on total internal reflection for solar thermal desalination. Using an air-cooled design for an air gap membrane distillation (AGMD) process may result in …
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Experimental and Analytical Investigation of the Transient Thermal Response of Air Cooled Data Centers
… transient response of the thermal environment in air cooled data centers through experiments, analytical and computational tools. The key thermal characteristics of the various data center components were extracted from a set of experiments. This includes the development of practical experimental …
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Design and testing of an air-cooled condenser for use with mixed working fluids
Includes bibliographical references (pages 62-63).
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Design and performance characterization of high power density air-cooled compact condenser heat exchangers
… and characterization of ultra-compact air-cooled condenser heat exchangers with exceptional power density performance in excess of 100 W/cm3. This exceptional heat exchanger performance is attributed to the implementation of high-speed compressible air flow in circular microchannels and …
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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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Cold side thermal energy storage system for improved operation of air cooled power plants
Air cooled power plants experience significant performance fluctuations as plant cooling capacity reduces due to higher daytime temperature than nighttime temperature. The purpose of this thesis is to simulate the detailed operation of a cold side thermal energy storage system in order to evaluate …
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Cooling enhancement of forced convection air cooled chip array through active and passive flow modulation
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1986.
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Thermofluid design and performance analysis of an air-cooled heat rejection system for a 50 MWe sCO2 concentrated solar power plant
… network models of forced draft direct air-cooled heat rejection systems for a proposed 50 MWe sCO2 CSP plant. The models were developed using opensource software libraries in Python 3.8.5. The heat rejection systems consist of cooling cells, each with horizontal multi-pass staggered …
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An investigation of the bending moments imposed upon the crank pin end of the master rod of the Wright J-5, radial, air-cooled aviation engine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautical Engineering, 1927.
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Effect of Processing Path on Microstructure and Mechanical Properties of a Low Carbon, Low Alloy Advanced High Strength Steel
… grade low carbon, low alloy steel under air-cooled, water-quenched, and tempered conditions have been studied. The microstructural characterization has been carried out using an optical microscope, scanning electron microscope, energy-dispersive spectroscope, and electron backscattered …
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Active heat transfer enhancement in integrated fan heat sinks
… work focuses on a unique, compact, and efficient air cooled heat sink which addresses these shortcomings. While conventional air cooled heat sinks typically use a separate fan to force air flow over heated fins, the new design incorporates centrifugal fans directly into the body of a loop heat …
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Active heat transfer enhancement in integrated fan heat sinks
… work focuses on a unique, compact, and efficient air cooled heat sink which addresses these shortcomings. While conventional air cooled heat sinks typically use a separate fan to force air flow over heated fins, the new design incorporates centrifugal fans directly into the body of a loop heat …
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Projeto térmico de trocadores de calor resfriados a ar
… industries, are increasing the use of the air cooled heat exchangers. Exchangers designing usualy utilize the estimate and global methods. This paper shows these methods and presents a new approach for this design, called "stepping method'', which consider the tube bundle divided in small …
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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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