Relevant bibliographies by topics / Radiative Heat Flux Rate / Dissertations / Theses
To see the other types of publications on this topic, follow the link: Radiative Heat Flux Rate.

Dissertations / Theses on the topic 'Radiative Heat Flux Rate'

Author: Grafiati
Published: 6 September 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 23 dissertations / theses for your research on the topic 'Radiative Heat Flux Rate.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Liu, Xianglei. "Tailoring thermal radiative properties and enhancing near-field radiative heat flux with electromagnetic metamaterials." Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/54960.

Full text
Abstract:
All substances above zero kelvin temperature emit fluctuating electromagnetic waves due to the random motions of charge carriers. Controlling the spectral and directional radiative properties of surfaces has wide applications in energy harvesting and thermal management. Artificial metamaterials have attracted much attention in the last decade due to their unprecedented optical and thermal properties beyond those existing in nature. This dissertation aims at tailoring radiative properties at infrared regime and enhancing the near-field radiative heat transfer by employing metamaterials. A compr
APA, Harvard, Vancouver, ISO, and other styles
2

Phillips, Bren Andrew. "Nano-engineering the boiling surface for optimal heat transfer rate and critical heat flux." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/76536.

Full text
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 130-133).<br>The effects on pool boiling characteristics such as critical heat flux and the heat transfer coefficient of different surface characteristics such as surface wettability, roughness, morphology, and porosity are not well understood. Layer-by-layer nanoparticle coatings were used to modify the surface of a sapphire heater to control the surface roughness, the layer thickness, and the surface chemistr
APA, Harvard, Vancouver, ISO, and other styles
3

Sopkin, Kristin L. "Heat fluxes in Tampa Bay, Florida." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002398.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Beaulieu, Patricia. "Flammability Characteristics at Heat Fluxes up to 200 kW/m2 and The Effect of Oxygen on Flame Heat Flux." Digital WPI, 2005. https://digitalcommons.wpi.edu/etd-dissertations/427.

Full text
Abstract:
"This dissertation documents two interrelated studies that were conducted to more fundamentally understand the scalability of flame heat flux. The first study used an applied heat flux in the bench scale horizontal orientation which simulates a large scale flame heat flux. The second study used enhanced ambient oxygen to actually increase the bench scale flame heat flux itself. Understanding the scalability of flame heat flux more fully will allow better ignition and combustion models to be developed as well as improved test methods. The key aspect of the first study was the use of real scale
APA, Harvard, Vancouver, ISO, and other styles
5

Burchfield, Nicole Ashley. "Narrow Angle Radiometer for Oxy-Coal Combustion." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8423.

Full text
Abstract:
A new method of power production, called pressurized oxy-fuel combustion, burns coal with CO2 and oxygen, rather than air, bringing us closer to the end goal of developing zero emission coal-fired utility boilers. However, high-pressure, high-temperature systems such as these are under-studied, and their behavior is difficult to measure. An accurate model for previously untested conditions requires data for validation. The heat release profile of flames and their radiative intensity is one of the key data sets required for model validation of an oxy-coal combustion system. A radiometer can be
APA, Harvard, Vancouver, ISO, and other styles
6

Baud, Germain. "Conception de récepteurs solaires à lit fluidisé sous flux radiatif concentré." Thesis, Toulouse, INPT, 2011. http://www.theses.fr/2011INPT0106/document.

Full text
Abstract:
L'objectif de ce travail est d’évaluer le positionnement et le potentiel des récepteurs à lit fluidisé à changement de section par rapport aux autres méthodes de chauffage de gaz à haute température par voie solaire. A cette fin, une connaissance approfondie des phénomènes thermiques et hydrodynamiques du récepteur est nécessaire. Pour acquérir cette connaissance, nous avons modélisé les transferts thermiques dans le récepteur en portant une attention particulière sur les transferts radiatifs en prenant en compte les diffusions multiples de la lumière dans le milieu particulaire, les effets de
APA, Harvard, Vancouver, ISO, and other styles
7

Zhang, Zihao. "Investigating the far- and near-field thermal radiation in carbon-based nanomaterials." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54433.

Full text
Abstract:
Two classes of carbon nanomaterials—carbon nanotubes and graphene—have promoted the advancement of nanoelectronics, quantum computing, chemical sensing and storage, thermal management, and optoelectronic components. Studies of the thermal radiative properties of carbon nanotube thin film arrays and simple graphene hybrid structures reveal some of the most exciting characteristic electromagnetic interactions of an unusual sort of material, called hyperbolic metamaterials. The features and results on these materials in the context of both far-field and near-field radiation are presented in this
APA, Harvard, Vancouver, ISO, and other styles
8

Fernandes, Cássio Spohr. "Implementação de modelos atualizados de gás cinza no software FDS para predição do fluxo de calor radiativo em incêndios." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/184710.

Full text
Abstract:
Este trabalho tem como objetivo implementar e testar modelos de gás cinza atualizados na rotina de radiação térmica do software Fire Dynamics Simulator (FDS), além da utilização do próprio modelo de gás cinza disponível no software, para a predição do fluxo de calor radiativo. Os modelos de gás cinza estudados foram o modelo padrão do software FDS (aqui denominado como GC1), e os modelos de gás cinza mais atuais: o GC2, no qual o coeficiente de absorção do meio participante é dado por relações polinomiais, e o GC3, sendo este um modelo de gás cinza que baseia o cálculo do coeficiente de absorç
APA, Harvard, Vancouver, ISO, and other styles
9

Alanazi, Mohammed Awwad. "Non-invasive Method to Measure Energy Flow Rate in a Pipe." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/103179.

Full text
Abstract:
Current methods for measuring energy flow rate in a pipe use a variety of invasive sensors, including temperature sensors, turbine flow meters, and vortex shedding devices. These systems are costly to buy and install. A new approach that uses non-invasive sensors that are easy to install and less expensive has been developed. A thermal interrogation method using heat flux and temperature measurements is used. A transient thermal model, lumped capacitance method LCM, before and during activation of an external heater provides estimates of the fluid heat transfer coefficient h and fluid temperat
APA, Harvard, Vancouver, ISO, and other styles
10

Ozler, Emrah Talip. "Modelling Of Dropwise Condensation On A Cylindrical Surface Including The Sweeping Effect." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12608440/index.pdf.

Full text
Abstract:
The purpose of this study was to analyze the dropwise condensation on a cylindrical surface including the sweeping effect theoretically. For this purpose, first the problem of the equilibrium shape and departure size of drops on the outer surface of a cylinder was formulated. The equations of the surface of the drop were obtained by minimizing (for a given volume) the total energy of the drop which consists of surface and gravitational energy by using the techniques of variational calculus. The departure size of the droplets on a surface at varies angle of inclinations were also determined exp
APA, Harvard, Vancouver, ISO, and other styles
11

Nasri, Nacer. "Étude thermique du comportement en régime transitoire d'une matrice poreuse soumise à un flux radiatif : application a la conversion thermique de l'énergie solaire." Nancy 1, 1994. http://www.theses.fr/1994NAN10134.

Full text
Abstract:
Le transfert de chaleur entre un fluide et un milieu poreux revêt un intérêt important dans de nombreux processus industriels tels que les régénérateurs, les réacteurs catalytiques et nucléaires et plus récemment les collecteurs solaires. Les travaux présentés constituent une contribution à l'étude des transferts couples de chaleur au sein d'un milieu poreux soumis à un flux radiatif et traversé par un fluide gazeux. Une fois exposées, les approches classiques, on détermine, à partir d'une analyse théorique, les champs de température du milieu solide et du fluide au cours de leurs phases d'évo
APA, Harvard, Vancouver, ISO, and other styles
12

Maluk, Cristian. "Development and application of a novel test method for studying the fire behaviour of CFRP prestressed concrete structural elements." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/15926.

Full text
Abstract:
A novel type of precast, prestressed concrete structural element is being implemented in load-bearing systems in buildings. These structural elements combine the use of high-performance, self-consolidating concrete (HPSCC) and non-corroding carbon fibre reinforced polymer (CFRP) prestressing tendons; this produces highly optimized, slender structural elements with excellent serviceability and (presumed) extended service lives. More widely, the use of new construction techniques, innovative materials, and ground-breaking designs is increasingly commonplace in today's rapidly evolving building c
APA, Harvard, Vancouver, ISO, and other styles
13

Alshawaf, Hussain M. J. A. A. M. A. "A Novel Thermal Method for Pipe Flow Measurements Using a Non-invasive BTU Meter." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/101528.

Full text
Abstract:
This work presents the development of a novel and non-invasive method that measures fluid flow rate and temperature in pipes. While current non-invasive flow meters are able to measure pipe flow rate, they cannot simultaneously measure the internal temperature of the fluid flow, which limits their widespread application. Moreover, devices that are able to determine flow temperature are primarily intrusive and require constant maintenance, which can shut down operation, resulting in downtime and economic loss. Consequently, non-invasive flow rate and temperature measurement systems are becoming
APA, Harvard, Vancouver, ISO, and other styles
14

Kasali, Suraju Olawale. "Thermal diodes based on phase-change materials." Thesis, Poitiers, 2021. http://www.theses.fr/2021POIT2254.

Full text
Abstract:
Nous étudions dans cette thèse la rectification thermique de diodes thermiques radiatives ou conductive constituées de matériaux à changement de phase.Cette thèse est divisée en trois parties. Dans les premières parties, nous modélisons comparativement les performances d’une diode thermique conductive sphérique et cylindrique constitués de VO2 présentant un transition de phase et des matériaux n’en présentant pas. Des expressions analytiques aux bornes des diodes sont dérivées. Des flux thermiques, des facteurs de rectifications ainsi que les profils de température à l’intérieur de la diode so
APA, Harvard, Vancouver, ISO, and other styles
15

Kianzad, Siamak. "Measurement of Thermal Insulation properties of TBC inside the Combustion chamber." Thesis, Luleå tekniska universitet, Materialvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-61917.

Full text
Abstract:
This master thesis project was performed in collaboration with Scania CV AB, Engine Materials group. The purpose with the project was to investigate different ceramic TBC (Thermal Barrier Coating) thermal insulation properties inside the combustion chamber. Experimental testing was performed with a Single-Cylinder engine with TBC deposited on selected components. A dummy-valve was developed and manufactured specifically for this test in order to enable a water cooling system and to ease the testing procedure. The dummy-valve consists of a headlock, socket, valve poppet and valve shaft. Additio
APA, Harvard, Vancouver, ISO, and other styles
16

Mangeon, Gaëtan. "Modélisation au second ordre des transferts thermiques turbulents pour tous types de conditions aux limites thermiques à la paroi." Thesis, Pau, 2020. http://www.theses.fr/2020PAUU3018.

Full text
Abstract:
Cette thèse propose une modélisation avancée des transferts thermiques dans les écoulements turbulents pour tous les types de conditions aux limites sur la température aux parois. Ces travaux reposent sur un double constat : d'une part, les modèles de turbulence traitant la thermique de l'écoulement dans la plupart des applications industrielles sont basés sur de simples relations algébriques incapables de représenter des physiques complexes, comme la convection naturelle et la thermique de la zone proche-paroi. D'autre part, la condition aux limites sur la température à la paroi (température
APA, Harvard, Vancouver, ISO, and other styles
17

Wong, William Chiu-Kit. "CFD Flame Spread Model Validation: Multi-Component Data Set Framework." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-theses/918.

Full text
Abstract:
"Review of the literature shows that the reported correlation between predictions and experimental data of flame spread vary greatly. The discrepancies displayed by the models are generally attributed to inaccurate input parameters, user effects, and inadequacy of the model. In most experiments, the metric to which the model is deemed accurate is based on the prediction of the heat release rate, but flame spread is a highly complex phenomenon that should not be simplified as such. Moreover, fire growth models are usually made up of distinctive groups of calculation on separate physical phen
APA, Harvard, Vancouver, ISO, and other styles
18

Srinath, S. "Development of Novel Heat Transfer Gauges Based on Large Carbon Clusters to Measure Total as well as Radiative Heat Flux for Planetary Entry Configurations in Hypersonic Shock Tunnels." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4243.

Full text
Abstract:
The quest of travelling beyond earth, preludes with ground based experimental studies, detailed analysis and accurate calculations in the aspects of having a safer design of flying vehicles. As the vehicles plunge into the dense atmosphere with greater velocities to hypersonic Mach numbers, the shockwave produced ahead of the aerodynamic body becomes highly intense producing volatile conditions at a temperature of several thousands of Kelvins. Predominantly the unsteady effects are dominated by radiations in the velocities which are greater than 6km/s. During such high enthalpy flows, the atmo
APA, Harvard, Vancouver, ISO, and other styles
19

Wang, HsienDe, and 王憲德. "Ray Tracing of Radiative Heat Flux in a Vertical Chamber During Rapid Thermal Processing." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/33733200360025928917.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Shiung, Hung-Jia, and 熊宏嘉. "Time Periodic Evaporation Heat Transfer of Refrigerant R-410A due to Refrigerant Flow Rate Oscillation or Heat Flux Oscillation in a Narrow Annular Duct." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/24677965736367363416.

Full text
Abstract:
碩士<br>國立交通大學<br>機械工程學系<br>98<br>An experiment is carried out in the present study to investigate the characteristics of time periodic evaporation heat transfer for refrigerant R-410A flowing in a horizontal narrow annular duct subject to an imposed time periodic mass flux oscillation or heat flux oscillation. The mass flux oscillation and heat flux oscillation are both in the form of triangular waves. The gap of the duct is fixed at 2.0 mm. In the study, the effects of the refrigerant mass flux oscillation, heat flux oscillation, R-410A saturation temperature, imposed heat flux and vapor quali
APA, Harvard, Vancouver, ISO, and other styles
21

Chen, Chien-An, and 陳建安. "Time Periodic Flow Boiling Heat Transfer and Associated Bubble Characteristics of Refrigerant R-134a in a Horizontal Annular Duct due to Flow Rate or Heat Flux Oscillation." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/80296358322824178267.

Full text
Abstract:
博士<br>國立交通大學<br>機械工程學系<br>98<br>Experiments have been conducted here to investigate how the imposed time periodic refrigerant flow rate or heat flux oscillation affects the saturated and subcooled flow boiling heat transfer and associated bubble characteristics for refrigerant R-134a in a horizontal narrow annular duct. Besides, the evaporation heat transfer of R-134a flow in the same duct are examined. The test section for the horizontal annular duct consists of an outer pipe made of Pyrex glass and an inner heated copper pipe, intending to measure the boiling heat transfer coefficient and to
APA, Harvard, Vancouver, ISO, and other styles
22

Hsu, Shu-Hao, and 許書豪. "Time Periodic Flow Boiling of Refrigerant R-410A due to Refrigerant Flow Rate or Heat Flux Oscillations in a Horizontal Narrow Annular Duct." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/67889326225694857405.

Full text
Abstract:
碩士<br>國立交通大學<br>機械工程學系<br>98<br>An experiment is carried out here to investigate the heat transfer and associated bubble characteristics in time periodic flow boiling of refrigerant R-410A in a horizontal narrow annular duct subject to a time periodic mass flux or heat flux oscillation. Both the imposed mass flux and heat flux oscillations are in the form of triangular waves. Effects of the refrigerant mass flux oscillation, heat flux oscillation, and refrigerant saturated temperature on the temporal flow boiling heat transfer and bubble characteristics are examined. The bubble characteristics
APA, Harvard, Vancouver, ISO, and other styles
23

Link, Roman Mathias. "The role of tree height and wood density for the water use, productivity and hydraulic architecture of tropical trees." Thesis, 2020. http://hdl.handle.net/21.11130/00-1735-0000-0005-13EF-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography