Results 271 to 280 of about 13,582 (315)
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In Vivo Measurement of Swine Endocardial Convective Heat Transfer Coefficient
IEEE Transactions on Biomedical Engineering, 2004We measured the endocardial convective heat transfer coefficient h at 22 locations in the cardiac chambers of 15 pigs in vivo. A thin-film Pt catheter tip sensor in a Wheatstone-bridge circuit, similar to a hot wire/film anemometer, measured h. Using fluoroscopy, we could precisely locate the steerable catheter sensor tip and sensor orientation in pigs'
Chanchana Tangwongsan +4 more
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Errors associated with interferometric measurement of convective heat transfer coefficients
Applied Optics, 1977Errors caused by refraction and end effects in interferometric systems are studied analytically. Both errors are estimated for Mach-Zehnder and differential interferometers when these instruments were used to measure convective heat transfer coefficients in air and water. Both errors were found to be larger for the Mach- Zehnder interferometer than for
J M, Mehta, W Z, Black
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An instrument to measure the convective heat transfer coefficient on large vessels
2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2008Hepatocellular carcinoma is one of the most common malignancies worldwide. During radiofrequency hepatic ablation, the tumor is heated by means of radiofrequency energy. The heating causes necrosis of the malignant tumor. Thus, if the procedure is successful it can cure the patient.
Alaor Faria, Miguel +3 more
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Dependency of thermal spreading resistance on convective heat transfer coefficient
Microelectronics Reliability, 2008Abstract This paper presents a study of the thermal spreading resistance R th of a small heat source on a conductive substrate subject to bottom-side convective cooling. This problem has been investigated for a very long time and is well covered in the literature.
Bjorn Vermeersch, Gilbert De Mey
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Boundary-Layer Meteorology, 2005
The convective heat transfer coefficient (CHTC) of an urban canopy is a crucial parameter for estimating the turbulent heat flux in an urban area. We compared recent experimental research on the CHTC and the mass transfer coefficient (MTC) of urban surfaces in the field and in wind tunnels. Our findings are summarised as follows.
Aya Hagishima +2 more
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The convective heat transfer coefficient (CHTC) of an urban canopy is a crucial parameter for estimating the turbulent heat flux in an urban area. We compared recent experimental research on the CHTC and the mass transfer coefficient (MTC) of urban surfaces in the field and in wind tunnels. Our findings are summarised as follows.
Aya Hagishima +2 more
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Establishing non-linear convective heat transfer coefficient
Coupled Systems Mechanics, 2022The aim of the work presented in this paper is development of numerical model for prediction of temperature distribution in pavement according to the measured meteorological parameters, with introduction of non- linear heat transfer coefficient which is a function of temerature difference between the air and the pavement.
Cuculić, Marijana +3 more
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Measurements of heat transfer coefficients within convection ovens
Journal of Food Engineering, 2006Abstract Measurements of apparent heat transfer coefficients within a typical domestic fan oven and a commercial batch oven were performed using four different methods: back-calculation from transient temperature data; using heat flux sensors; from the mass-loss rate; a psychrometric method.
James K. Carson +2 more
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The determination of convective heat transfer coefficient during frying
Journal of Food Engineering, 1999Abstract The convective heat transfer coefficient during deep-fat frying was determined at different temperatures. In this study, aluminum wool filled with potato mash having a size of 0.05 × 0.05 × 0.003 m 3 was used as a model sample. Frying was performed by fixing the sample vertically to make the system symmetrical.
S. Sahin, S.K. Sastry, L. Bayindirli
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Time series estimation of convective heat transfer coefficients
Building and Environment, 1994Abstract In this work a novel methodology for the estimation of convective heat transfer coefficients is presented. The convective heat transfer coefficients are estimated using novel and existing time series methods, and are compared with those obtained from the standard ‘ratio of means’ approach, and those given in the CIBSE Guide.
Irving, AD, Dewson, T, Hong, G, Day, BF
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DETERMINATION OF THE HEAT TRANSFER COEFFICIENT DURING CONVECTION HEAT TRANSFER
Power Engineering ProblemsThe article is devoted to determining the heat transfer coefficient during convective heat transfer. Convective heat transfer or heat transfer is the process of heat transfer between the surface of a solid and the surrounding medium (gas or liquid). In this case, heat transfer occurs due to the combined action of thermal conductivity and convection ...
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