Results 11 to 20 of about 23,246 (292)

Flow Maldistribution in Industrial Air Heaters and its Effect on Heat Transfer

Chemical Engineering Transactions, 2014
Flow maldistribution in cross-flow heat exchangers used for industrial air heaters or recuperators is fairly common and can lead to a number of undesirable effects, one of which is deterioration in the thermal performance.
M.J. Atkins, J.R. Neale, M.R.W. Walmsley, T.G. Walmsley, G. De Leon   +4 more
doaj   +2 more sources

Key Factors, Degradation Mechanisms, and Optimization Strategies for SCO₂ Heat Transfer in Microchannels: A Review

Energies
Despite a growing body of research on supercritical carbon dioxide (SCO2) heat transfer in microchannels, comprehensive reviews remain scarce. Existing studies predominantly focus on isolated experiments or simulations, yielding inconsistent findings and
Lianghui Guo, Ran Liu, Xiaoqin Xiong, Xinzhe Li, Aoxiang Yin, Runyao Han, Jiahao Zhang, Zhuoqian Liu, Keke Zhi   +8 more
doaj   +2 more sources

Research Progress on Convective Heat Transfer Characteristics of Supercritical Fluids in Curved Tube

Energies, 2022
Because of their compact structure, ease of processing and higher heat transfer coefficient, curved-tube heat exchangers are widely applied in various industry applications, such as nuclear power systems, solar-powered engineering, aircraft engine ...
Xinxin Liu, Shuoshuo Li, Liang Liu, Chao He, Zhuang Sun, Faruk Özdemir, Muhammad Aziz, Po-Chih Kuo   +7 more
doaj   +2 more sources

Modeling and Simulations of Deteriorated Turbulent Heat Transfer in Wall-Heated Cylindrical Tube [PDF]

Journal of Verification, Validation and Uncertainty Quantification, 2019
Abstract This paper discusses the modeling and simulations of deteriorated turbulent heat transfer (DTHT) for a wall-heated fluid flows, which can be observed in gas-cooled nuclear power reactors during pressurized conduction cooldown (PCC) event due to loss of force circulation flow.
Prasad Vegendla, Rui Hu
openaire   +1 more source

Study on Flow and Heat Transfer Characteristics of Supercritical Kerosene in a Round Tube [PDF]

MATEC Web of Conferences, 2020
The finite volume discrete solution of the Navier-Stokes equation and the RNG model of the turbulence model are used to numerically simulate the flow and heat transfer characteristics of supercritical kerosene in a circular tube. The results show that as
Gao Feng, Zhang Qian, Xiao Hongyu, Chen Fengli, Xia Xuefeng   +4 more
doaj   +1 more source

Numerical Analysis of a Supercritical Heat Transfer of Cryogenic Methane in Regeneratively Cooled Rocket Engine [PDF]

INCAS Bulletin
A comparative study of supercritical heat transfer in a regeneratively cooled rocket engine was conducted using three-dimensional numerical simulations for two channel geometries: rectangular and square. Various constant heat fluxes, flow velocities, and
Mohammed Amine DJEFFAL, Nabil BENAMARA, Abdelkader LAHCENE, Ali BENOUAR, Abdelkader BOULENOUAR, Mohammed MERZOUG   +5 more
doaj   +1 more source

The evaluation of steam condensing process in the presence of fouling on the example of a single tube derived from the steam power plant heat exchanger

Scientific Journal of Gdynia Maritime University, 2023
Additional thermal resistance caused by fouling gathered on the heat transfer surfaces of condensers and regenerative heat exchangers within steam power plants most often results in heat transfer process deterioration. It manifests itself, among others,
Tomasz Hajduk
doaj   +1 more source

Heat Transfer Studies of Supercritical Water Flows in an Upward Vertical Tube [PDF]

Journal of Heat and Mass Transfer Research, 2019
In this paper, an investigation of heat transfer characteristics at supercritical pressure fluid flowing in a uniformly heated vertical tube has been carried out.
Deenadayalan Santhosh Kumar, Suresh S, Anand Sundaravel   +2 more
doaj   +1 more source

Experimental study on heat transfer characteristics of supercritical carbon dioxide natural circulation

Nuclear Engineering and Technology, 2022
An experimental study has been conducted to investigate the heat transfer characteristics of supercritical carbon dioxide (sCO2) uniformly heated in the horizontal circular smooth tube.
Pengfei Wang, Peng Ding, Wenhuai Li, Rongshun Xie, Chengjie Duan, Gang Hong, Yaoli Zhang   +6 more
doaj   +1 more source

Numerical Study of Turbulent Convective Heat Transfer of Aviation Kerosene in Coiled Pipes

, 2021
Turbulent flow and convective heat transfer of kerosene in coiled pipes with different wall boundary conditions and curvature radii of coiled pipes are numerically studied.
范文慧, 仲峰泉
core   +2 more sources