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Showing 1 to 20 of 164 for “"heat generation"”.
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Experimental Analysis of Heat Generation in Carbon
… of using carbon nanotube films as thin film heaters. We developed a unique methodology to synthesize a well dispersed, environmentally friendly solution of CNTs that could be easily spin coated as well as spray coated on different substrates based on the application. Using the produced …
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Heat Generation and Transfer in Additive Friction Stir Deposition
… near-net shape part is driven by the non-linear heat generation mechanisms of plastic deformation and sliding frictional heat generation. The magnitude of these mechanisms, and hence the total applied thermal power, implicitly depend on the thermal state of the system, forcing power input to …
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Low-Concentrating, Stationary Solar Thermal Collectors for Process Heat Generation
… of a stationary, double-covered process heat flat-plate collector with a one-sided, segmented booster reflector (RefleC). This reflector approximates one branch of a compound parabolic concentrator (CPC). Optical meas-urement results of the collector components as well as raytracing …
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Frequency dependent heat generation during vibrothermographic testing of composite materials
… investigation concerns the frequency dependent heat generation behavior and the heat generation mechanisms for the thermal patterns of delamination in fiber reinforced composites during a vibrothermographic test, which uses real time thermography as a nondestructive evaluation of a structure or …
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Imaging and Control of Heat Generation at the Nanoscale Using Plasmonic Structures
… thanks to their spectral tunability, hot carrier generation, enhanced emission, and their ability to confine electromagnetic fields at volumes smaller than the diffraction limit of light. Despite their utilization and the vast knowledge about the electromagnetic properties of plasmonic structures, …
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Monte Carlo device modeling of 3D n-FinFETs to investigate heat generation
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
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Energy localization and heat generation in composite energetic systems under high-frequency mechanical excitation
… mechanical excitation to generate significant heating within plastic bonded explosives, as well as single energetic particles embedded within a viscoelastic binder, is studied. In this work, the fundamental mechanisms associated with the conversion of high-frequency mechanical excitation to …
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The stoichiometry and kinetics of biological heat generation in the aerobic stage of dual digestion
Over the past 10 years the Water Research Commission (WRC) has recognized the potential benefits of the dual digestion system for South Africa where anaerobic digestion is the preferred method of sludge stabilization. Accordingly, from 1981 to 1984 under WRC sponsorship, the Johannesburg City …
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Unsteady free convection on a horizontal circular cylinder in the presence of heat generation and radiation
… horizontal circular cylinder in the presence of heat generation and radiation is considered in this thesis. The cylinder is fixed and immersed in a Newtonian fluid, while the temperature at the surface is either heated uniformly or oscillated harmonically about the mean temperature, temperature of …
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Incorporating Magnetic Nanoparticle Aggregation Effects into Heat Generation and Temperature Profiles for Magnetic Hyperthermia Cancer Treatments
… using magnetic NPs is their ability to release heat, which can both sensitize tumors to other forms of treatment as well as damage the tumor. The work here aims to incorporate a broad range of relevant physics into a comprehensive model. NP aggregation is known to be a large source of …
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On the use of mechanical and acoustical excitations for selective heat generation in polymer-bonded energetic materials
… capabilities may be enhanced by selectively heating target materials by external excitation. Moreover, polymer-bonded energetic materials may be particularly susceptible to heating by mechanical or acoustical excitation, due to the high levels of damping and low thermal conductivities of most …
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Computational analysis of magnetohydrodynamics boundary layer flow of nanofluid over a stretching sheet in the presence of heat generation or absorption and chemical reaction
… in the presence of chemical reaction, as well as heat generation or absorption. The partial differential equations are reduced to coupled nonlinear ordinary differential equations using similarity transformations, which are then solved numerically using spectral local linearization and spectral …
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A Quasi-Thermal-Mechanical-Biological Model of the Ste-Sophie, QC Landfill
… depth and time in the waste profile. An aerobic heat generation model was proposed that related the aerobic heat generation rate to the oxygen concentration measured near the surface. An anaerobic heat generation model presented in the literature was included in the model. The heat generation …
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ΘΕΡΜΙΚΗ ΣΥΜΠΕΡΙΦΟΡΑ ΚΑΙ ΒΕΛΤΙΣΤΕΣ ΔΙΑΣΤΑΣΕΙΣ ΚΥΚΛΙΚΩΝ ΠΤΕΡΥΓΙΩΝ ΠΟΥ ΠΕΡΙΕΧΟΥΝ ΘΕΡΜΙΚΕΣ ΠΗΓΕΣ
… ARE SPECIFIED BY THE PROBLEM, NAMELY THE DESIRED HEAT DISSIPATION Q, OR VOLUME (V) OF FIN, THE THERMAL PARAMETERS H,K,ΘΒ AND THE HEAT GENERATION (9G). THE RESULTS ARE GENERALIZED BY EXPRESSING THE DIMENSIONLESS BASE THICKNESS AND WIDTH OF THE FIN WHICH ARE DEFINED IN THE TEXT OF THIS THESIS, AS …
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Thermal modeling for calculation of formation temperatures for deep water wells with chemical heat source
… method surpasses other methods like downhole heaters as it is more practically feasible. The technique has a great potential to decrease mud losses, hence to decrease non-productive cost and time. In this study a computational thermal model is developed in order to calculate the temperature …
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Microwave heating of a coating on a temperature-sensitive substrate
Microwave heating has been considered for the heating of a coating in contact with a temperature-sensitive substrate. A methodology was developed to conduct a microwave heating feasibility study for a candidate system. The study consisted of dielectric property determination, development of heat …
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Factors Affecting the Primary Stability of the Intraosseous Screw Type Implants /// Фактори повлияващи първичната стабилност на интраосалните винтови имплантати
… modification on the primary stability and on the heat generation at the marginal bone area during the implant insertion. Assessment of the primary stability of implants of different forms and dimensions inserted into artificial bone blocks, into pig ribs and into 3D-printed simulation models of …
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Delamination dynamics and vibrothermographic-thermoelastic evaluation of advanced composite materials
… of damaged composite plates, frequency dependent heat generation phenomena were observed. Local hot spots were formed around imperfection areas especially delaminations. Heat generation was also found to relate to the crack size. In order to explain the above observed phenomena, the dynamic …
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Second-Surface Mirror Effects in Thin-Film Absorber Layers
… has been developing analytical and numerical heat transfer models for NASA's Langley Research Center for more than 25 years. Recent versions of these models are being used in the design of the next-generation thermal radiation detectors intended for Earth radiation budget campaigns. The …
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Extended Surface Heat Transfer Coefficients via Endwall Temperature Measurements
… the experimental process used to obtain average heat transfer data on the pin surface, at the expense of additional post processing complexity. The method is based on a unique, analytical solution of the longitudinal conduction equation with internal heat generation, allowing computation of heat …
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