Results 61 to 70 of about 50,883 (231)

Development, testing and design optimisation of a water and R134a based thermosyphon heat exchanger for air-water heat recovery systems

open access: yesCase Studies in Thermal Engineering, 2022
Heat pipes find their increasing uses in heat recovery and energy saving in thermal systems. Our work involves the designing, building, and testing of a heat pipe heat exchanger made of 28 copper thermosyphons.
Kanchit Rongchai, Sura Tundee
doaj   +1 more source

Poiseuille and Nusselt numbers for laminar flow in microchannels with rounded corners [PDF]

open access: yes, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009)   +2 more
core  

Influence of Wall Deformation Structure on the Liquid Film Flow Behavior Under Turbulent Conditions

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To explore the influence of typical wall deformation structure in the scrubbing‐cooling tube on the liquid film, this paper studied the liquid film flow behavior on the riblet walls with representative riblet radii and compared them with the flat wall. Under different liquid film Reynolds numbers (Rel = 8.3 × 103 ~ 3.14 × 104), the liquid film
Qian Liu   +5 more
wiley   +1 more source

Numerical study of heat transfer and flow structure over a microscale backstep

open access: yesAlexandria Engineering Journal, 2021
This study presents a two and three-dimensional numerical simulations of a flow-through a sudden expansion and contraction microchannels. The finite element method was used to discretize the equations governing the physical model.
Hassnia Hajji   +5 more
doaj   +1 more source

Melt compounding with graphene to develop functional, high-performance elastomers [PDF]

open access: yes, 2013
Rather than using graphene oxide, which is limited by a high defect concentration and cost due to oxidation and reduction, we adopted cost-effective, 3.56 nm thick graphene platelets (GnPs) of high structural integrity to melt compound with an elastomer ...
Araby, Sherif   +8 more
core  

A Short‐Cut Design Approach to Evaluate Reboiler Designs in Vapor Recompression Scenarios

open access: yesChemie Ingenieur Technik, EarlyView.
A short‐cut model framework that incorporates mechanical vapor recompression (MVR) requirements into reboiler design is presented, which is particularly beneficial during early process development with limited data or initial feasibility assessments.
Franziska Lais   +2 more
wiley   +1 more source

Unsteady natural convection in a triangular enclosure under isothermal heating [PDF]

open access: yes, 2011
The fluid flow and heat transfer inside a triangular enclosure due to instantaneous heating on the inclined walls are investigated using an improved scaling analysis and direct numerical simulations.
Saha, Suvash
core   +2 more sources

Tailoring Thermophysical Properties and Multiscale Machine Learning Modeling of 2D Nanomaterial‐Infused Beeswax as a Green NePCM for Sustainable Thermal Management Systems

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study develops eco‐friendly two‐dimensional nanoparticle‐enhanced phase change materials (2D NePCMs) using biodegradable beeswax infused with rGO, GO, and MXene nanoparticles. Experimental results demonstrated up to 21.9% enhancement in thermal conductivity with minimal latent heat loss, while machine learning models achieved >95% predictive ...
Abdullah Aziz   +3 more
wiley   +1 more source

Entropy generation for MHD pulsating stratified liquid flow between two permeable beds

open access: yesNonlinear Analysis
In natural systems such as lakes, reservoirs, and the upper ocean layers, temperature-induced stratified fluid flows are frequently observed. Numerous studies have explored key aspects of these flows, including stability, mixing, and thermal transport ...
Madhurya Vangalapudi, Suripeddi Srinivas
doaj   +1 more source

Microchannel fluid flow and heat transfer by lattice boltzmann method [PDF]

open access: yes, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014)   +2 more
core  

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