Results 81 to 90 of about 1,117,112 (398)

Effects of carbon nanotube concentration on heat transfer characteristics in turbulent mixtures

International Journal of Thermofluids
This study presents numerical simulations modeling convective heat transfer in turbulent flows of carbon nanotube (CNT) mixtures suspended in water. The RNG k-ε turbulence model is employed and simulations are performed using the FLUENT software.
Javad Zareei, John William Grimaldo Guerrero, Shoira Formanova, KDV Prasad, Sabir Tagelsir Hassan Widatalla   +4 more
doaj   +1 more source

The effect of hydrodynamic flow unsteadiness on heat transfer enhancement in a channel with square ribs

MATEC Web of Conferences, 2017
The heat transfer coefficient has been measured in the channel with square ribs for the case of periodic flow rate variation. New technique for heat transfer coefficient measurements has been applied in the study.
Dushin Nikolay, Mikheev Nikolay, Davletshin Irek, Paereliy Anton, Dushina Olga   +4 more
doaj   +1 more source

An experimental approach to determine the heat transfer coefficient in directional solidification furnaces [PDF]

The heat transfer coefficient between a molten charge and its surroundings in a Bridgman furnace was experimentally determined using in-situ temperature measurement.
Banan, Mohsen, Gray, Ross T., Wilcox, William R.   +2 more
core   +1 more source

A method for predicting interfacial freezing of a liquid flowing over a cold surface [PDF]

, 1969
Instantaneous thickness of a frozen layer is a function of specific heat, heat of fusion, temperatures, the frozen layer thickness at equilibrium, the thermal conductivity, and heat transfer coefficient.
Savino, J. M., Siegel, R.
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Experimental Study on Heat Transfer Characteristics of Radiant Cooling and Heating

Energies
While traditional air conditioning systems serve their purpose, radiation air conditioning systems provide several benefits, including improved comfort, higher energy efficiency, and lower initial costs.
Shengpeng Chen, Xiaohui Ma, Chaoling Han
doaj   +1 more source

Influence of Temperature on Scratch and Wear Properties of Technical Thermoplastics: Implications for Material Selection

Advanced Engineering Materials, EarlyView.
The share of technical thermoplastics is expected to grow further in the e‐mobility segment. In this study, a detailed temperature‐based tribological characterization of technical thermoplastics is performed. The tribological properties are discussed in terms of the dynamic mechanical properties of polymers at different ambient temperatures. A proof of
Harsha Raghuram, Thomas Koch, Vasiliki-Maria Archodoulaki   +2 more
wiley   +1 more source

Influence on Heat Transfer Coefficient of Heat Exchanger by Velocity and Heat Transfer Temperature Difference

Journal of Harbin University of Science and Technology, 2017
Aimed to insufficient heat transfer of heat exchanger, research the influence on the heat transfer coefficient impacted by velocity and heat transfer temperature difference of tube heat exchanger.
WANG Fang, TIAN Yu, ZHANG Xiu-yu, CUI Lu-Lu   +3 more
doaj   +1 more source

A New Statistical-Based Correlation for the Rib Fin Effects on the Overall Heat Transfer Coefficient in a Rib-Roughened Cooling Channel

International Journal of Rotating Machinery, 2007
Heat transfer coefficients in the cooling cavities of turbine airfoils are greatly enhanced by the presence of discrete ribs on the cavity walls. These ribs introduce two heat transfer enhancing features: a significant increase in heat transfer
M. E. Taslim, V. Nezym
doaj   +1 more source

A laser-induced heat flux technique for convective heat transfer measurements in high speed flows [PDF]

A technique is developed to measure the local convective heat transfer coefficient on a model surface in a supersonic flow field. The technique uses a laser to apply a discrete local heat flux at the model test surface, and an infrared camera system ...
Hingst, W. R., Keith, T. G., Jr., Porro, A. R.   +2 more
core   +1 more source