Journal of Thermal Engineering and Applications
Volume 1, Issue 1 (2014)
Published
Table of contents
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CFD Analysis of Tree Shaped Fin Array on Flat and Symmetrical Wedge Shaped Base Plate
Abstract: Heat generated from electronic chips is usually siphoned off by placing a heat sink. Due to the poor heat transfer capability of air extended surfaces are used as heat sink. Constant research is being carried out on the selection of geometry and material of extended surface for effective heat transfer. In the present work CFD analysis (ANSYS 14) is done on Tree fin array using FLUENT on a flat shaped …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 1, 2014 · pp. 1–6 Read article
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Flame Phenomenology for Premixed Methane and Propane/Air in Developed Meso-scale Channels at Ambient Conditions
Abstract: This paper reports the development of a meso-scale channel for propagation of methane and propane-air mixtures at low Reynolds number. An experiment was conducted in 3, 4 and 5 mm internal quartz tube diameters at premixed conditions of the fuel/air. The tubes were vertically mounted and sometimes preheated uniformly laterally. Uniformly laterally heating gives a zero temperature gradient. Flame phenomenology at different equivalence ratios (φ) of the mixture was discussed. …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 1, 2014 · pp. 13–21 Read article
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Modeling and Simulation of Spiral Plate Heat Exchanger
Abstract: The spiral-plate heat exchanger (SHE) offers efficiency in spacing and reduces heat losses. SHE’s offer high reliability, lower spaces occupancy, high heat transfer coefficient and on-line performance in many severely fouling services such as slurries. Experimental investigations were conducted in a spiral plate heat exchanger with hot water as the service fluid and cold water in different flow rates as the cold process fluid. The experiments were conducted essentially in …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 1, 2014 · pp. 22–29 Read article
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Thermodynamic design data of ammonia-sodium thiocyanate absorption heat pump systems simultaneous cooling and heating using ANN approach.
Abstract: The aim of this study is to train neural network which predict thermodynamic design data without involving role of thermodynamic properties, temperature concentration complex relationship and formula of coefficient of performance. Authors have presented values of weights and bias obtained from the trained ANN through which one can formulate mathematical equations for predicting thermodynamic design data. Authors have achieved coefficient of multiple determinations R2 as 0.99999, 0.99997 and 0.99953 for …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 1, 2014 · pp. 30–36 Read article
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Heat Transfer in Pool Boiling of H2O/LiBr Mixture
Abstract: This paper presents the results of an experimental investigation carried out to study the heat transfer in saturated nucleate pool boiling of the H2O/LiBr bromide mixture on a heated vertical copper cylindrical rod at atmospheric pressure. The mass fraction of lithium bromide was varied from 0 to 0.5. It was observed that the heat transfer coefficient increased for the mixture with an increase in heat flux and lithium bromide concentration. …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 1, 2014 · pp. 7–12 Read article