Results 1 to 10 of about 937,600 (313)

Experimental Research on the Flow and Heat Transfer Characteristics of Subcritical and Supercritical Water in the Vertical Upward Smooth and Rifled Tubes

open access: yesEnergies, 2022
Experiments were conducted to investigate the heat transfer and flow characteristics of the vertical upward smooth and rifled tubes from subcritical to supercritical pressure. The distributions of wall temperature and heat transfer coefficient (HTC) were
Xiaocheng Du   +5 more
doaj   +1 more source

Experimental investigation on relationship between heat transfer and sealing characteristics under different pressure ratios in labyrinth seals with orthogonal method

open access: yesAin Shams Engineering Journal, 2023
25 models are designed according to the orthogonal table, to study the comprehensive relationship between heat transfer and sealing characteristics in straight-through labyrinth seals with different geometrical parameters. The experimental investigations
Zhang Bo   +4 more
doaj   +1 more source

Study on Flow Boiling Heat Transfer in Segmented Internally-Threaded Tube [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
The flow boiling heat transfer characteristics of R245fa in segmented internally-threaded tubes are studied experimentally. The heat transfer performances of smooth tube, front-threaded tube, rear-threaded tube, and full-threaded tube are compared.
J. Yang   +5 more
doaj   +1 more source

Investigation into abnormal heat transfer mechanism of supercritical carbon dioxide in vertically upward Tube

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectivesThe heat transfer techniques of supercritical CO2 (S-CO2) in small channels have been extensively used in nuclear reactor cooling, aerospace engine cooling and so on.
Juanjuan HU   +4 more
doaj   +1 more source

Overall Heat Transfer Coefficient Evaluation Method for Uncracked Hydrocarbon Fuel in a Regeneratively-Cooled Heat Exchanger of a Scramjet

open access: yesApplied Sciences, 2022
Regenerative cooling is critical for the thermal protection of hypersonic propulsion systems, wherein the flow and heat transfer characteristics of the hydrocarbon fuel in the cooling channel are crucial.
Haowei Li   +4 more
doaj   +1 more source

Measurement of heat transfer characteristics by a child manikin with embedded cyclic temperature control [PDF]

open access: yesE3S Web of Conferences, 2023
Thermal manikin is an effective tool to study the heat transfer between the human body and the surrounding environment. Combining the heat transfer characteristics with a human-body thermal model enables the detailed analysis of the interaction of the ...
Tsuruta Yoshihiko   +2 more
doaj   +1 more source

Analysis of Fluid-Solid Coupling Radial Heat Transfer Characteristics in a Normal Hexagonal Bundle Regenerator under Oscillating Flow

open access: yesEnergies, 2023
The main purpose of this paper is to analyze the heat transfer mechanism of a new type of regenerator with a low temperature difference and low current resistance under oscillatory flow at room temperature.
Yajuan Wang   +4 more
doaj   +1 more source

Combined Heat and Power System Dispatch Considering Heat Transfer Characteristics of Heat Exchangers

open access: yesZhongguo dianli, 2020
The heat transfer characteristic of heat exchangers is one of the key factors affecting the optimal dispatch of combined heat and power systems. In order to optimize the dispatch of the combined heat and power systems, a three-stage heat transfer model ...
Liming ZOU   +3 more
doaj   +1 more source

Prediction of heat transfer characteristics of nanofluids in heat pipes based on artificial neural network model

open access: yesChemical Engineering Transactions, 2018
The objective of this study is to predict the heat transfer characteristics of nanofluids in heat pipes based on artificial neural network (ANN) theory. A visualized experiment for analyzing the heat transfer performance of heat pipes with nanofluid was ...
Yang Zhang, Xinli Wu
doaj   +1 more source

Modeling Study on Heat Transfer in Marangoni Dropwise Condensation for Ethanol-Water Mixture Vapors

open access: yesEnergies, 2020
In this paper, a model was developed to predict the heat transfer characteristics of Marangoni dropwise condensation. In accordance with the feature of Marangoni condensation, condensation was treated as dropwise condensation of mixture vapors.
Jinshi Wang   +4 more
doaj   +1 more source

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