Results 91 to 100 of about 93,819 (310)

low Boiling Heat Transfer Characteristics of R290 in 5mm Small-diameter Tubes

Zhileng xuebao, 2019
The characteristics of heat transfer for R290 flow boiling in 5 mm small diameter tubes were investigated experimentally with a focus on the effects of heat flux, mass flow rate, and saturation temperature on the surface coefficient of boiling heat ...
He Kuan, Liu Jianhua, Yu Xiaoxiao
doaj  

Effect of the Aspect Ratio and Tilt Angle on the Free Convection Heat Transfer Coefficient Inside Al₂O₃-Water-Filled Square Cuboid Enclosures. [PDF]

Nanomaterials (Basel), 2022
Almuzaiqer R, Ali ME, Al-Salem K.
europepmc   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Effect of Different Fin Geometries on Heat Transfer Coefficient [PDF]

, 2020
Kuldeep, Rohit
openalex  

Closure to “Discussion of ‘Heat Transfer to Mercury Flowing in Line Through an Unbaffled Rod Bundle: Experimental Study of the Effect of Rod Displacement on Rod-Average Heat Transfer Coefficients’” (1970, ASME J. Heat Transfer, 92, p. 305) [PDF]

, 1970
Peter Hlaváč, O.E. Dwyer, M. A. Helfant   +2 more
openalex   +1 more source

Heat transfer coefficients for slab shaped products subjected to heating

International Communications in Heat and Mass Transfer, 1994
Abstract An analytical model was obtained to determine heat transfer coefficients for slab shaped food products heated in a convection oven. The variation of the center temperature of the products was measured and converted into dimensionless form.
openaire   +2 more sources

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Experimental Study on Flow Boiling Heat Transfer and Pressure Drop Characteristics of R245fa in a Dimpled Flat Tube

Zhileng xuebao
In this study, the flow boiling heat transfer and pressure drop of R245fa in a dimpled flat tube were experimentally measured. The effects of vapor quality and heat flux were analyzed accordingly.
Feng Ye, Ding Puxian, Shao Shuangquan
doaj  

Influence of the heat transfer coefficient on heat transfer in a vibrating cylindrical cavity

Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki
Heat transfer in a vibrating cylindrical air-filled cavity, where the heat flux on the walls is defined by the Newton–Richmann law, was studied numerically. To describe the process in an axisymmetric formulation, the full system of Navier–Stokes equations with constant values of the viscosity and thermal conductivity coefficients was used.
A. A. Gubaidullin, A. V. Pyatkova
openaire   +2 more sources