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Showing 1 to 12 of 12 for “"louvered fin"”.
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Flow, Heat Transfer, and Pressure Drop Interactions in Louvered-Fin Arrays
In many compact heat exchangers, interrupted-fin surfaces are used to enhance air-side heat transfer performance. One of the most common interrupted surfaces is the louvered fin. The goal of this work is to develop a better understanding of the flow and its influence on heat transfer and pressure …
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Heat Transfer Measurements and Optimization Studies Relevant to Louvered Fin Compact Heat Exchangers
… contain tubes carrying one fluid and external fins through which passes another fluid. To enhance the fin-side heat transfer in a compact heat exchanger, which is typically the air side of the heat exchanger, louvers are manufactured into the fins. Louvered fins initiate the growth of new …
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An Analytical and Empirical Study of Frost Accumulation Effects on Louvered -Fin, Microchannel Heat Exchangers
… predict the time-varying performance of folded-louvered-fin, microchannel heat exchangers. The model utilizes the correlations developed from the experimental data and incorporates a sub-model for frost properties. The model successfully predicts the heat transfer performance of the heat …
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Measurements and Predictions of the Heat Transfer at the Tube-Fin Junction for Louvered Fin Heat Exchangers
… investigation, a scaled-up model of the louvered fin-tube wall was tested in a flow facility. Although computational results for the isothermal tube wall are shown, control of the experimental isothermal tube wall proved to be unrealistic and only heat transfer measurements along the …
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Effects of Louver Length and Vortex Generators to Augment Tube Wall Heat Transfer in Louvered Fin Heat Exchangers
… particular type of compact heat exchanger, the louvered fin heat exchanger, has been used heavily in the automotive and air conditioning industries. Over the last several decades, the majority of the work towards improving louvered fin exchanger efficiency has focused on designing more efficient …
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Practical Applications of Delta Winglets in Compact Heat Exchangers with Louvered Fins
… industry in systems that cool engine components. Louvered fin heat exchangers are used over their continuous fin counterparts because of the significant advantages they provide in heat transfer efficiency, while only causing small increases in overall pressure losses. With the recent emphasis that …
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Spatially Resolved Heat Transfer Studies in Louvered Fins for Compact Heat Exchangers
… heat transfer study of six scaled up louvered fin geometries that are typical of those found in modern louvered fin compact heat exchangers. Heat transfer measurements were performed over a range of Reynolds numbers and with two different boundary conditions. A fully heated boundary …
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Thermo-hydraulic study of inclined louvered fins
… design for this application is a crossflow fin-and-tube heat exchanger. When exchanging heat with air, the main resistance to heat transfer is located on the air side. To increase the heat transfer rate fins are added on the airside which increase the surface area. Over the past decades a …
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Experimental study of the thermal-hydraulic performance of a brazed aluminum heat exchanger under wet-surface conditions
… The test specimen is a brazed-aluminum, louvered-fin heat exchanger. The total capacity, pressure drop and water drainage behavior under various water usage rates and air face velocities are explored and compared to data from dry-surface conditions. The impact of spray orientation is also …
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Investigation of the Effect of Superhydrophobic Coatings on the Performance of Heat Exchangers
… coatings on the performance of aluminium louvered fin heat exchangers. A method was developed to prepare superhydrophobic coatings on the exchangers by applying layer of metallic zinc and then reacting the zinc-coated exchanger with silver to electrolessly deposit a microscopically rough …
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Metal foams as novel materials for air-cooling heat exchangers
… is considered as a replacement for conventional louvered fins in brazed-aluminum heat exchangers. Closed-loop wind tunnel experiments are conducted to measure the pressure drop and heat transfer performance of metal-foam heat exchangers. In addition to characterizing the air-side pressure-drop …
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The aerodynamics of Formula One car cooling ducts.
… deliver comparable performance to the current louvered fin radiator if it had a much larger volume. It is recommended that no further investigative work is conducted into the use of such foam heat exchangers. The components of this investigation are drawn together to provide some design …