Results 71 to 80 of about 636 (201)

Development of Experimental and Theoretical Study on Pulsating Heat Pipe

Zhileng xuebao, 2013
Pulsating heat pipe (PHP), which is also called oscillating heat pipe (OHP), is a novel type of highly efficient heat transfer component. It is widely applied in many fields, including aerospace technology, cooling of electronic devices and energy-saving
Tang Xin, Zhang Hua, Sha Lili, Ju Yonglin   +3 more
doaj  

Single Versus Double Screw Extrusion: Impact on Mechanical Performance and Crack Resistance for a Virgin, Recycled, and Blended Polypropylene

Polymer Engineering &Science, EarlyView.
Schematic overview of the study approach and key findings. ABSTRACT To evaluate the influence of extrusion on material performance, three processing methods, single extrusion (1x Ex), double extrusion (2x Ex), and double screw compounding (C), were investigated for virgin polypropylene (vPP), recycled PP (rPP), and a blend containing 10% rPP (rPP10 ...
J. Pötzlbauer, J. Geier, B. Haar, S. Schuschnigg, M. Messiha, T. Koch, C. Maurer, G. Pinter, F. Arbeiter   +8 more
wiley   +1 more source

Factors affecting oscillating motion and heat transfer in an oscillating heat pipe

, 2018
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] As demand has grown for thermal management solutions, interest in passive heat transfer devices such as heat pipes has grown as well. In particular, oscillating heat pipes (OHP) have shown the capacity to handle high heat loads and heat fluxes.
openaire   +2 more sources

Experimental study on thermal characteristics of ammonia three-dimensional oscillating heat pipes with different filling ratios

Case Studies in Thermal Engineering
A three-dimensional oscillating heat pipe (3DOHP) transfers heat through both latent heat and sensible heat and features good temperature uniformity, compact channels, and high thermal conductivity.
Chunrong Yu, Tengda Wen, Jinlin Wen, Gaowei Wei, Yulong Ji   +4 more
doaj   +1 more source

A Simple Rheology‐Based Framework for Selecting Printing Parameters in Extrusion‐Based Hydrogel Additive Manufacturing

Polymer Engineering &Science, EarlyView.
An open analytical framework converts standard rheological measurements directly into the complete extrusion field and slicer‐ready printing parameters for Piston driven printers, enabling rapid operational window of printability in direct ink writing without CFD or machine learning. ABSTRACT Predicting whether a gel formulation will print successfully
Thiago M. C. Rodrigues, João V. R. C. dos Santos, Nicole P. Martins, Rossana Mara da Silva Moreira Thiré   +3 more
wiley   +1 more source

Application of Non‐Isothermal Network Theory With Curved‐Channel Element Characteristics to Predict Melt Conveying in High‐Performance Single‐Screw Extruders

Journal of Polymer Science, EarlyView.
This study presents a fast and accurate calculation tool to predict conveying of polymer melts in single‐screw extruders. Integrating generalized sub‐models into network theory allows to represent the complex screw shapes and material behavior more realistically. Tests on an industrial extruder show close agreement with experiments, outperforming older
Daniel Herzog, Wolfgang Roland, Christian Marschik, Gerald Berger‐Weber   +3 more
wiley   +1 more source

A new scale‐selective measure of curvature for meteorological fields

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We introduce a novel diagnostic called curvature using radial variation (CURV) that quantifies the local cyclonic or anticyclonic curvature of mean‐sea‐level pressure or geopotential height gridded fields over selected scales. A depiction of how CURV values relate to differing cyclonic curvature is shown in the figure.
Nigel Roberts, Timothy Hewson, Anca Brookshaw, Matthieu Chevallier   +3 more
wiley   +1 more source

Oscillating Heat Pipe Cooling System of Electric Vehicle’s Li-Ion Batteries with Direct Contact Bottom Cooling Mode

Energies, 2019
Recently, the use of electrical vehicles has abruptly increased due to environmental crises. The high energy density of lithium-ion batteries is their main advantage for use in electric vehicles (EVs).
Ri-Guang Chi, Seok-Ho Rhi
doaj   +1 more source

Sustainable Cities Under Pressure: Climate Risk, Oil Price Uncertainty, and Technological Innovation in GCC Countries

Sustainable Development, EarlyView.
ABSTRACT This study examines the dynamic interactions between climate risk, oil price uncertainty (OPU), and technological innovation in shaping Sustainable Development Goals (SDGs) related to Sustainable Cities and Communities (SCC) across Gulf Cooperation Council (GCC) countries from 2005 to 2024. Using a panel Time‐Varying Interactive Fixed Effects (
Mohamed Sami Ben Ali, Alanoud Al‐Maadid, Kamal Si Mohammed   +2 more
wiley   +1 more source

Regression analysis to predict the performance of acetone and SWCNT nano fluids in oscillating heat pipe

International Journal of Thermofluids
This work evaluates the heat transfer capabilities of a closed-loop oscillating heat pipe (OHP) filled with acetone and SWCNT during phase change. The OHP, with four turns, was tested for its thermal performance. The study varied the acetone filler ratio
Parashuram A Kutakanakeri, K.Rama Narasimha, Roopa D, Vijay Kumar S, Praveen Kumar M V, Vanitha K, C.Durga Prasad, Nagabhushana Pulla, Adem Abdirkadir Aden   +8 more
doaj   +1 more source