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 44 for “"Convection heat transfer"”.
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Free-Convection Heat Transfer in Laminar Boundary-Layers
Made available in DSpace on 2014-12-10T22:48:25Z (GMT). No. of bitstreams: 1 7500356.pdf: 7490531 bytes, checksum: 4ab7702e395b9c4bbd758519d04ca551 (MD5) Previous issue date: 1974
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The finite element analysis of convection heat transfer
… the development and current methods of numerical convection heat transfer from available literature, encompassing an analysis of the various finite element formulations available for investigating convection. It further describes the finite element formulation for the primitive variable convection …
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Forced convection heat transfer from extended surfaces with finned pins
… the film coefficient "h" by means of forced convection the heat transfer rate of a finned pin can be considerably improved. For an average flow rate of air over the extended surfaces, throughout the investigation the increase in the effectiveness was as much as 4.60 times over the free …
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Natural-Convection Heat Transfer With Water at High Grashof Numbers
Made available in DSpace on 2014-12-05T19:15:55Z (GMT). No. of bitstreams: 1 5805515.pdf: 3673078 bytes, checksum: 6b20400be9ce44b040406a09b77e1036 (MD5) Previous issue date: 1958
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The effects of electrostatic fields on forced convection heat transfer
Thesis: M.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1964
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Natural convection heat transfer from a horizontal disk in a cylindrical enclosure
This thesis studied natural convection in water from a horizontal mirror finished disk, heated in the center and surrounded by a cylindrical enclosure. The test section was designed to insure a one dimensional heat flux. Measurements were taken with power inputs varying from 25 to 5 watts. Fluid …
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An experimental investigation of mixed convection heat transfer in a rectangular enclosure
Mixed convection heat transfer was studied in a well instrumented, office size, rectangular enclosure. Surface and air temperatures were measured, convective heat fluxes were calculated, significant parameters were identified, and Nusselt number correlations were developed for various flow field …
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Analysis of Local Convection Heat Transfer Rates of Supercritical Carbon Dioxide in Tubes
… tubes with diameter of 6mm under cooling and heating conditions is carried out by using SST 𝑘 − 𝜔 turbulence model. The computations are conducted at operating pressure of 8MPa with various operating conditions. Simulations are conducted by using the latest poly-hexcore mesh method in ANSYS …
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Laminar free convection heat transfer in a vertical channel with linear wall temperatures
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1961.
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Experimental study of natural convection heat transfer and gaseous dynamics from dual-channel circulation loop
… reactor (VHTR) such as plenum-to-plenum heat transfer and gaseous dynamics during natural circulation. Natural circulation of the coolant is the leading capability for VHTR to transport the decay heat from the core to the reactor vessel during accident scenarios. To address this need, a …
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An experimental investigation of particle and gas convection heat transfer in a circulating fluidized bed
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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Specifics of forced-convection heat transfer to supercritical water flowing upward in annular and bundle flow geometries
… and bundle-flow geometries impede coolant flow, heat transfer to the coolant would occur differently than in bare tubes. The main objective of this work is to propose and verity a universal method to accurately predict Heat Transfer Coefficients (HTCs) and wall temperatures using HTC …
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Analytical investigation of fully developed laminar-flow forced convection heat transfer in rectangular ducts with uniform heat flux
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Naval Architecture and Marine Engineering, 1957.
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Specifics of forced-convection heat transfer in a vertical 7-element bundle cooled with upward flow of SuperCritical Water
… Reactor (SCWR) concept. However, determining Heat Transfer specifics for SuperCritical Water in bundle configurations is required. Many empirical Nusselt number (Nu) correlations derived from bare tubes are available, with only one derived from a bundle. No assessments of Nu correlations are …
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A New Numerical Method--Asymptotically Simplified Iteration Method With Patching as Applied to Free and Mixed Convection Heat Transfer
… natural structure of high Rayleigh number free convection, which consists of thin thermal and viscous boundary layers surrounded by a region of negligible viscous and conductive influences. Iteration techniques appropriate for each region are obtained from considerations of the asymptotic …
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Design of an experimental loop for post-LOCA heat transfer regimes in a Gas-cooled Fast Reactor
… of generating accurate, reliable data in various convection heat transfer regimes for use in the formulation of a comprehensive convection heat transfer correlation. The initial focus of the design is to ensure that the loop will be able to generate the convection flow regimes found in post Loss …
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Condensation of a vapor in the presence of a non-condensing gas
… Grashof number as based on an analogy to natural convection heat transfer, The results on a horizontal tube for other systems are in substantial agreement with the correlation.
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Heat Flux Measurements from a Human Forearm under Natural Convection and Isothermal Jets
This work is an experimental study on heat transfer from a human arm and a model cylinder. Heat transfer from a human forearm to a large jet, representative of a building HVAC vent/outlet was studied using both an IR camera and a heat flux sensor. The isothermal jet was discharged horizontally from …
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Analysis of Interfacial Processes on Non-Wetting Surfaces
… transport processes namely, drag reduction, convection heat transfer enhancement, fouling mitigation and dropwise condensation heat transfer. First, an analytical solution is developed for effective slip length and, in turn, drag reduction and friction factor on structured non-wetting …
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Development of Strategies in Finding the Optimal Cooling of Systems of Integrated Circuits
… increased risk of component failure due to overheating. This thesis addresses the issues associated with the thermal management of integrated power electronic devices. Two studies are presented in this thesis. The focus of these studies is on the thermal design of a DC-DC front-end power …
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